TY - CONF TI - Lean Construction for Innovation: A Systematic Review of IGLC Proceedings C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1 EP - 12 PY - 2024 DO - 10.24928/2024/0111 AU - Zelenko, Darcy AU - Maxwell, Duncan AD - PhD Candidate, Future Building Initiative, Monash University, Melbourne, Australia, darcy.zelennko@monash.edu, https://orcid.org/0009-0008-4700-3467 AD - Director, Future Building Initiative, Monash University, Melbourne, Australia, duncan.maxwell@monash.edu, https://orcid.org/0000-0002-9039-1441 AB - The implementation of Lean Construction (LC) is hindered by a lack of comprehensive understanding of innovation in the built environment, making it hard for firms to implement potential improvements. This paper contests that a consideration of LC as innovation can stimulate greater uptake, because it encourages firms to think more broadly about its implementation. The study aims to understand contributions to innovation scholarship from the perspective of LC, and to build an argument for considering LC as innovation to increase uptake. Papers published in IGLC conferences across the last 25 years form the basis for a systematised literature review (SLR), that utilises thematic analysis to synthesise understandings about innovation from the LC community. From the findings, six major themes emerge relating to innovation that are prominent in the reviewed literature: Relationship of LC to Innovation, Innovation Models, Barriers, Drivers, Innovation Strategy Essentials, and Collaborative Efforts. The paper argues that LC be considered an innovation for construction in and of itself, and a theoretical model is presented to aid understanding of LC as innovation. Future research pathways are identified, for example workshops with LC experts and practitioners to verify and expand the findings of this paper. KW - Innovation KW - Lean construction KW - Built Environment PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2195/pdf L2 - http://iglc.net/Papers/Details/2195 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Optimization of Design Coordination Processes for a 7-Story Multifamily Building Using Virtual Design and Construction (VDC) C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 36 EP - 47 PY - 2024 DO - 10.24928/2024/0125 AU - Merino Chocano, Alvaro Enrique AU - Fernández Bustamante, Diego Alfredo AU - Del Savio, Alexandre Almeida AD - Student, Civil Engineering Department, Universidad de Lima, Lima, Peru, 20182907@aloe.ulima.edu.pe, https://orcid.org/0009-0001-2496-8900 AD - Student, Civil Engineering Department, Universidad de Lima, Lima, Peru, 20180688@aloe.ulima.edu.pe, https://orcid.org/0009-0001-4392-8111 AD - Full Professor, Civil Engineering Department, Universidad de Lima, Lima, Peru, delsavio@gmail.com, https://orcid.org/0000-0002-6067-6606 AB - Traditional construction and property companies often find themselves bound by conventional project management and design techniques, which can lead to delays during the design phase. This situation needs to be avoided. This study presents a process optimization for the design stage of multifamily buildings using Virtual Design Construction (VDC) - a collaborative project management approach. Focused on a case study involving two residential buildings developed by the same property company in Lima, Peru, this research commences with a comprehensive analysis of the existing design processes from the projects. By pinpointing key sources of variability and streamlining the design flow, the proposed VDC implementation aims to enhance compliance with project timelines and the approval of design drawings. The optimized process yielded tangible results, significantly reducing design time, completing tasks ahead of the scheduled deadline, and improving the delivery of technical files by 25%. These outcomes underscore the benefits of this optimized process, including enhanced project efficiency and improved design quality, thereby making a compelling case for applying VDC in similar construction projects by property companies. KW - VDC KW - BIM KW - collaboration KW - concurrent engineering KW - process optimization. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2196/pdf L2 - http://iglc.net/Papers/Details/2196 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Expectations and Perceptions – Daily Management Meetings in Design C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 48 EP - 59 PY - 2024 DO - 10.24928/2024/0140 AU - Särkilahti, Joonas AU - Seppänen, Olli AU - Lappalainen, Eelon AD - Master of Science, Department of Civil Engineering, Aalto University, Finland, joonas.sarkilahti@gmail.com, orcid.org/0009-0000-1363-7957 AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi, orcid.org/0000-0002-2008-5924 AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, eelon.lappalainen@aalto.fi, orcid.org/0000-0002-7573-344X AB - Daily Management (DAM) has generated many benefits in construction, but it has been less used and studied in design management. This case study of a Finnish structural design firm provides insights into the expectations of designers regarding DAM and Daily Management Meetings (DMM), as well as their perceptions during a short experiment on implementing DAM and DMM in daily structural design work. The research data for the case study were collected through interviews, observation, and a survey conducted with the company’s larger structural design group. The main expectations of survey respondents and interviewees included improving the identification of design constraints, ensuring and enhancing the flow of information and increasing trust and team spirit. Interviewees who participated in the experiment highlighted the importance of being able to estimate their own workload and task duration, as well as gain improved knowledge of the concurrent work of other team members. Interestingly, in a larger group with many design managers, the benefit of improving the evaluation of each designer’s workload was not anticipated as a significant benefit. This study contributes to highlighting DAM’s implications for designers’ self-management of their work. KW - Lean construction KW - construction design process management KW - daily management KW - daily management meetings KW - design management PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2197/pdf L2 - http://iglc.net/Papers/Details/2197 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Takt Time Planning in Construction and Its Impact on the Work-Life Balance for Individuals and Families C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 13 EP - 23 PY - 2024 DO - 10.24928/2024/0154 AU - Merrill, Samuel F. AU - Smith, James P. AU - Farnsworth, Clifton B. AU - Bingham, Evan D. AD - Graduate Student, Department of Civil and Construction Engineering, Ira A. Fulton College of Engineering, Brigham Young University, Provo, USA, sfm98@byu.edu, https://orcid.org/0009-0000-1256-7942 AD - Associate Professor, Department of Civil and Construction Engineering, Ira A. Fulton College of Engineering, Brigham Young University, Provo, USA, james_smith@byu.edu, https://orcid.org/0000-0001-8925-5680 AD - Associate Professor, Department of Civil and Construction Engineering, Ira A. Fulton College of Engineering, Brigham Young University, Provo, USA, clifton_farnsworth@byu.edu, https://orcid.org/0000-0001-8587-1443 AD - Associate Professor, Department of Civil and Construction Engineering, Ira A. Fulton College of Engineering, Brigham Young University, Provo, USA, evan.bingham@byu.edu, https://orcid.org/0000-0001-6636-5609 AB - This paper explores the time management challenges in construction management, emphasizing the prevalence of crisis-oriented work, stress, and burnout. Integrating Takt Time Planning (TTP), a method that establishes production cadence, proves to be transformative in effective construction scheduling. TTP yields benefits like the establishment of flow, enhanced problem detection, and waste reduction. Despite a growing body of research on TTP, there is a notable gap regarding its impact on the ability of individuals to achieve and maintain a healthy work life balance in the construction industry. The focus of this paper is to explore current research and literature to investigate the connection between TTP and its impact on work-life balance and emotional health. Through a literature review and synthesis of information, the authors identified a likely connection between TTP implementation and an improved well-being for construction professionals and their families. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2198/pdf L2 - http://iglc.net/Papers/Details/2198 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Built Environment Design Knowledge Framework Supportive of Resilient Healthcare C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 60 EP - 71 PY - 2024 DO - 10.24928/2024/0186 AU - Ransolin, Natália AU - Saurin, Tarcísio Abreu AU - Formoso, Carlos Torres AU - ClayWilliams, Robyn AU - Rapport, Frances AD - Postdoctoral Research Fellow, Australian Institute of Health Innovation, Macquarie University, Sydney, Australia, natalia.ransolin@mq.edu.au, orcid.org/0000-0002-7128-8000 AD - Professor, Industrial Engineering Post-Graduation Program, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, saurin@ufrgs.br, orcid.org/0000-0003-2929-5888 AD - Professor, Civil Engineering Post-Graduation Program: Construction and Infrastructure, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 AD - Professor, Australian Institute of Health Innovation, Macquarie University, Sydney, Australia, robyn.clay williams@mq.edu.au, orcid.org/0000-0002-6107-7445 AD - Honorary Professor, Australian Institute of Health Innovation, Macquarie University, Sydney, Australia, frances.rapport@mq.edu.au orcid.org/0000-0002-4428-2826 AB - Although the evidence-based design (EBD) literature investigating the influence of the built environment (BE) on health services performance and outcomes is extensive, its contribution to resilient healthcare is scarce. This work presents a framework of BE design knowledge supportive of resilient healthcare. Firstly, a systematic literature review based on EBD, complexity, and resilience resulted in generic BE design knowledge that represented the role of BE in supporting resilient healthcare at different levels of abstraction. Next, the knowledge was used for thematic analysis in case studies in two teaching hospitals, tailored to workflows that occurred in the connecting areas to and from an intensive care and other hospital units of a large public hospital in Brazil and the surgical service of a private hospital in Australia. Joint findings allowed the development of a framework hierarchically composed of four meta-principles, seven principles, seven prescriptions, and 181 practical examples emphasizing a systems perspective that considers intra and inter-hospital workflows and areas. The resulting knowledge guides designers of both BE and operations phases during decision-making to support resilient health services. As a limitation, the framework was not applied during those phases, representing one of the main suggestions for future work. KW - Evidence-based Design KW - Built environment KW - Complexity KW - Resilient Healthcare. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2199/pdf L2 - http://iglc.net/Papers/Details/2199 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Last Planner System: Pull Planning as a Documentation Management Tool in Photovoltaic Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 72 EP - 83 PY - 2024 DO - 10.24928/2024/0197 AU - Vieira, João P. P AU - Pimentel, Fernanda M. AU - Etges, Bernardo M. B. S. AU - Silva, Jayane N. F. AU - Bonkowsky, Pedro H. AU - Bronholo, Cassiano AU - Fireman, Marcus C. T. AU - Bungardi, Bogdan AD - M.Sc. Eng., Lean Consultant at Climb Consulting Group, Porto Alegre, Brazil, joao@climbgroup.com.br, orcid.org/0000-0003-0292-2570 AD - Lean Consultant at Climb Consulting Group, Graduate in Civil Eng. at Pucrs, Porto Alegre, Brazil. fernanda@climbgroup.com.br, orcid.org/0000-0003-0230-4326 AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, bernardo@climbgroup.com.br, orcid.org/0000-0002-3037-5597 AD - Eng., Planning and Cost at Motrice Energy Solutions | BN Engineering, São Paulo, Brazil, jayane.silva@consorciopanati.com.br AD - Lean Consultant at Climb Consulting Group, Graduate in Civil Eng. at University of Taubaté, Taubaté pedro@climbgroup.com.br AD - Project Coordinator at Climb Consulting Group, Post Graduated in Engineering Commissioning at Federal University of Paraná, Curitiba, Brazil. cassiano@climbgroup.com.br AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, marcus@climbgroup.com.br, orcid.org/0000-0001-5843-4715 AD - PhD Candidate Politehnica University Timisoara, Project Manager at Goldbeck Sollar, bogdan.bungardi@goldbecksolar.com AB - The article discusses the application of the Last Planner System (LPS) in the context of infrastructure projects, focusing specifically on the renewable energy sector. A Brazilian company specialized in the design and construction of photovoltaic plants was chosen as the research scenario. LPS was introduced to the company as a tool for production control and management, providing stability to the production system. This article explores the application of LPS in design management, highlighting the complexity of the construction design process and proposing the integration of LPS principles into design management. Pull planning was incorporated into design management to establish a reliable flow in the iterative work performed by designers. The pull planning process is described in detail, including the creation of process flows, document analysis, board assembly, milestone definition, task segmentation of process flows, and weekly schedule structuring. Challenges were identified during the practical application of the tool, leading to the conclusion that there is room for improvement. In summary, this study demonstrates the potential of LPS and pull planning in improving the management of infrastructure projects, with a specific emphasis on documentation and design management in photovoltaic projects. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2200/pdf L2 - http://iglc.net/Papers/Details/2200 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Design-Construction Communication Loop: A Conceptual Model for Communication Error Analysis C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 24 EP - 35 PY - 2024 DO - 10.24928/2024/0204 AU - Drevland, Frode AU - Svalestuen, Fredrik AD - Associate Professor, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, frode.drevland@ntnu.no, orcid.org/0000-0002-4596-1564 AD - Director of Process and Production, Veidekke Norge, Trondheim, Norway, fredrik.svalestuen@veidekke.no, orcid.org/0009-0004-4662-4617 AB - The paper introduces a novel conceptual model designed to analyse and mitigate communication errors within the design-construction interface of construction projects. Recognising the complexity of communication in construction projects, the model integrates three foundational theories: Koskela’s Transformation-Flow-Value (TFV) theory, Gero’s Function-Behaviour-Structure (FBS) model, and Shannon and Weaver’s communication theory. This interdisciplinary approach allows for a comprehensive examination of the information flow between the design and construction processes, highlighting potential transformation and flow errors at each stage. The model categorises errors into transformation errors, intrinsic to specific processes, and flow errors, which result from upstream issues, providing a framework for targeted quality control measures and root cause analysis. However, the model acknowledges its limitation in addressing the temporal aspects of communication, a critical factor in construction project management. The paper argues that, despite this limitation, the model offers significant insights for academics and practitioners by providing a structured method to identify, analyse, and address communication errors, thereby enhancing the efficiency and effectiveness of information exchange in construction projects. KW - Lean construction KW - theory KW - construction communication KW - information flow PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2201/pdf L2 - http://iglc.net/Papers/Details/2201 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A New Automated System for RFI Processing: Lead Time Reductions and Staff Perception C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 84 EP - 94 PY - 2024 DO - 10.24928/2024/0110 AU - Pitman, Oliver AU - Wijayaratna, Kasun AU - da Rocha, Cecilia G. AD - Alumnus, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Oliver.T.Pitman@student.uts.edu.au AD - 2Senior Lecturer, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Kasun.Wijayaratna@uts.edu.au ORCID 0000-0002-4604-7256 AD - Senior Lecturer, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Cecilia.Rocha@uts.edu.au ORCID 0000-0001-6764-1724 AB - This paper presents the results of a New Automated System for managing the Request for Information (RFI) process for a Tier 1 Contractor in Australia. A before and after case study entailing two projects was carried out: one using a traditional system based on manual email exchanges (Project S) and one using the new proposed system (Project P). The results show considerable reduction in the standard deviation and average time for completing the requests for information, suggesting a streamlined and more reliable RFI process. Survey results also presented favorable outcomes, with staff noting that Project P encounters fewer delays or instances of unanswered requests. Staff also expressed greater confidence in the accuracy and reliability of responses, along with increased satisfaction regarding collaboration, communication, and the overall performance of the new system. This paper illustrates how lean principles such as “simplify” and “reduce lead time” in combination with a relatively simple innovation can create objective and subjective benefits. Furthermore, it provides practical example showcasing that such innovations do not need to be top-to-bottom driven but can be created and implemented by junior/entering level staff. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2202/pdf L2 - http://iglc.net/Papers/Details/2202 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Perceptions of Collaborative Contracts From the Perspective of Lean Construction in Chile C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 95 EP - 107 PY - 2024 DO - 10.24928/2024/0126 AU - Sepúlveda, Italo AU - Alarcón, Luis F. AU - Mesa, Harrison A. AD - PhD Student, Department Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile. Professor, Faculty of Architecture, Construction and Environment, Universidad Autónoma de Chile, Santiago, Chile ilsepulveda@uc.cl, orcid.org/0000-0002-6019-9344 AD - Professor, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, lalarcon@uc.cl, orcid.org/0000-0002-9277-2272 AD - School of Civil Construction, Faculty of Engineering, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile, orcid.org/0000-0002-7050-3610 / Centro Nacional de Excelencia para la Industria de la Madera (CENAMAD), Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago, Chile AB - Pursuing more efficient and collaborative methods in the construction industry has increased interest in collaborative contracts and Lean Construction. Despite their potential benefits, there is a lack of clarity in understanding and applying collaborative contracts in Chile. This study aims to assess the level of knowledge and perceptions about collaborative contracts among construction professionals in Chile and to explore how lean tools and principles support the implementation of these contracts. It employs a two-fold research methodology: a survey to gather empirical data, followed by a comprehensive literature. The survey focused on collecting data on the experience and perceptions of collaborative contracts, while the literature review sought to identify the intersection of these contracts with Lean Construction. The findings revealed a limited and varied understanding of collaborative contracts. Perceived benefits, such as improved efficiency and collaboration, aligned with the principles of Lean Construction. However, challenges were also identified, including the need for greater initial investment, cultural barriers, and complexity in managing multiple projects. The study emphasizes the need for a well-defined concept of collaborative contracts in Chile and posits Lean Construction as a vital tool to address challenges and bolster their implementation. KW - Lean Construction KW - Collaboration KW - Contracts KW - Management KW - Construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2203/pdf L2 - http://iglc.net/Papers/Details/2203 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Traditional Tender Versus Early Contractor Involvement (ECI): A Comparative Analysis of Work Hours C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 108 EP - 118 PY - 2024 DO - 10.24928/2024/0131 AU - Saunders, Lachlan AU - Wijayaratna, Kasun AU - da Rocha, Cecilia G. AD - Alumnus, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Lachlan.Saunders@student.uts.edu.au AD - 2Senior Lecturer, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Kasun.Wijayaratna@uts.edu.au ORCID 0000-0002-4604-7256 AD - Senior Lecturer, Faculty of Engineering & IT, University of Technology Sydney (UTS), Australia, Cecilia.Rocha@uts.edu.au ORCID 0000-0001-6764-1724 AB - The strategy of Early Contractor Involvement (ECI), wherein contractors participate in a project’s design and planning stages, is seen as an effective approach to address inefficiencies and complex interpersonal dynamics of construction projects. These challenges arise from contracting and procurement systems that do not promote collaboration, leading to delays and increased costs. Tendering, marked by competition and unpredictability, mirrors the industry’s fragmentation and waste. Contractors face issues such as scope ambiguity, flawed documentation, market volatility, strict deadlines, and probity. This paper conducts a comparative analysis of two infrastructure projects in Australia, involving a tier 1 Contractor. Each project underwent both a traditional tender and ECI, facilitating comparisons. The results indicate that ECI tends to extend the time and resources utilized by contractors, with Project 1 and Project 2 experiencing increases of 12 weeks and 10 weeks, respectively, along with additional work hours and personnel. Despite ECI increasing time and resources, it improves the tendering process by enhancing certainty, focus, and communication. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2204/pdf L2 - http://iglc.net/Papers/Details/2204 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Competitive Negotiated Procedure: Experiences From Rv. 555 the Sotra Connection C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 119 EP - 130 PY - 2024 DO - 10.24928/2024/0144 AU - Machozi, Faustin M AU - Lædre, Ola AU - Wondimu, Paulos AD - MSc, Norwegian University of Science and Technology (NTNU)/ Project Engineer HENT AS, Trondheim, Norway, +47 941 16 094, faustin.machozi@hent.no, orcid.org/0009-0000-8440-9652 AD - Professor, dr. ing., Norwegian University of Science and Technology (NTNU), Trondheim, Norway, ola.ladre@ntnu.no, orcid.org/0000-0003-4604-8299 AD - PhD, Norwegian Public Roads Administration (NPRA), Trondheim, Norway, paulos.wondimu@vegvesen.no, orcid.org/0000-0001-9421-594X AB - To reduce the number of conflicts in their projects, the Norwegian Public Roads Administration has implemented procurement procedures which allow dialogue and negotiation before the signing of contracts. One of these procedures is the Competitive Negotiated Procedure (CNP). The literature that addresses the implementation and experiences of CNP is limited, despite it has existed for several years. The purpose of this paper is to explore how the CNP can be improved for future use. The study has been carried out as a literature review and a case study. The case study investigated the infrastructure project Rv. 555 Sotra Connection and consisted of a document study and fourteen semi-structured interviews with representatives from the client and the qualified suppliers. The implementation of the procedure was divided into five phases. There were challenges with the procedure. Both the client and the suppliers encountered challenges with the zoning plan, which limited the supplier’s ability to implement cost-saving alternatives. The suppliers experienced challenges regarding the client’s evaluation of the most economically advantageous tender (MEAT). Both the client and the suppliers highlight that the CNP is demanding, but it allows clarification of ambiguities and risks before contract signing. This reduces the risk of future conflicts. KW - Lean Construction KW - Competitive Negotiated Procedure (CNP) KW - Procurement KW - Collaboration KW - Most Economically Advantageous Tender (MEAT) PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2205/pdf L2 - http://iglc.net/Papers/Details/2205 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Strategic Partnerships Between Project Client and Client’s Agent C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 131 EP - 142 PY - 2024 DO - 10.24928/2024/0168 AU - Ørke, Johan Christie AU - Engebø, Atle AU - Lædre, Ola AD - M.Sc. student, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway, johan.c.orke@ntnu.no, orcid.org/0000-0002-9040-6762 AD - Researcher, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway, atle.engebo@ntnu.no, orcid.org/0000-0002-5293-0176 AD - Professor, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway, ola.ladre@ntnu.no, orcid.org/0000-0003-4604-8299 AB - Strategic partnership is an emerging project delivery method characterized by long-term collaboration in multiple projects. In this paper, we seek to increase the knowledge about strategic partnerships. From a lean perspective, strategic partnerships could be a potential measure towards mitigating inefficiency caused by lacking continuity and previous relationships. Our purpose is to reveal aspects that can help clients and client’s agents organize better strategic partnerships. The client’s agent is the contracted adviser who takes care of all the functions which the client’s project management cannot handle. A literature review and a case study were conducted, where the case study included eight semi-structured interviews. The findings identify several benefits regarding soft factors in a strategic partnership. However, some challenges are also identified, especially by the client. Based on the findings, four measures are suggested to improve strategic partnerships between client and client’s agent: Mutually helping the other part get new projects, ensuring competence development, ensuring availability of demanded qualifications, and more focus on the long-term and future perspective of the strategic partnership. KW - Lean construction KW - contract and cost management KW - strategic partnerships KW - client’s agent. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2206/pdf L2 - http://iglc.net/Papers/Details/2206 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Structuring Approach and Current Status of Integrated Project Delivery (IPD) in Germany C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 143 EP - 154 PY - 2024 DO - 10.24928/2024/0171 AU - Weinmann, Marc AU - Baier, Carolin AU - Miguel, Ana Schilling AU - Haghsheno, Shervin AD - Research Associate, Department of Civil Engineering, Geo and Environmental Sciences, Karlsruhe Institute of Technology, Karlsruhe, Germany, marc.weinmann@kit.edu, orcid.org/0000-0003-3871-0553 AD - Research Associate, Department of Civil Engineering, Geo and Environmental Sciences, Karlsruhe Institute of Technology, Karlsruhe, Germany, carolin.baier@kit.edu, orcid.org/0000-0002-2790-9586 AD - Research Associate, Department of Civil Engineering, Geo and Environmental Sciences, Karlsruhe Institute of Technology, Karlsruhe, Germany, ana.miguel@kit.edu, orcid.org/0009-0002-7983-3840 AD - Professor, Department of Civil Engineering, Geo and Environmental Sciences, Director, Karlsruhe Institute of Technology, Karlsruhe, Germany, shervin.haghsheno@kit.edu, orcid.org/0000-0002-0602-6370 AB - The construction industry has been striving for some time to find efficient ways to ensure the successful delivery of project goals for all project participants and stakeholders, while at the same time improving the quality of collaboration and overall productivity. In addition to the use of collaborative methods and tools, Integrated Project Delivery (IPD), developed in the early 2000s, represents an innovative approach to deliver construction projects. Due to the positive results of initial pilot projects, IPD is increasingly attracting international interest. Since 2018, IPD approaches have also been used in pilot projects in Germany. This article presents the current state of research on the development of IPD in Germany and highlights the status of its practical application. Twenty IPD projects in Germany are identified, documented, and analyzed based on various criteria. For the first time, this paper creates transparency on an international level about the five-year development of IPD in Germany. It also provides a basis for more in-depth analysis, particularly regarding the qualitative aspects of the IPD pilot projects carried out in Germany. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2207/pdf L2 - http://iglc.net/Papers/Details/2207 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Contract, Collaborative Power: Accelerating Delivery in Underground Metro Project C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 155 EP - 166 PY - 2024 DO - 10.24928/2024/0207 AU - P, Prabhu AU - M, Nalin AU - U, Ashwetha AU - V, Aravind AU - H, Jayarama AD - Assistant Manager, Planning, CMRL TU02 Project, Larsen & Toubro Construction, Chennai, India, 7305097121, prabhu.p1@lntecc.com AD - Manager, Planning, CMRL Projects, Larsen & Toubro Construction, Chennai, India, 9840684003, nalinm@lntecc.com AD - Construction Manager, TFL, CMRL Projects, Larsen & Toubro Construction, Chennai, India, 9500812844, ashwethakumar@lntecc.com AD - Senior Planning Engineer, TU02 Project, CMRL Projects, Larsen & Toubro Construction, Chennai, India, 9487450657, aravind.v@lntecc.com AD - Vice President, Project Director, CMRL Projects, Larsen & Toubro Construction, Chennai, India, 9819436227, h-jayarama@lntecc.com AB - This paper examines the practical implementation of lean principles in the contract management and operations of the TU 02 underground metro project in Chennai City, India. The project, a crucial component of Chennai Metro Rail Limited's Phase 2 development spanning 116 km, stands out for its intricate collaboration with multiple contractors. Despite its scale and complexity, CMRL TU 02 project team has embraced lean management principles since its inception. The project encountered about 24-months of delay due to the unavailability of shafts for lowering and retrieving TBMs. This paper provides a detailed analysis of the lean principles applied in Contracts Management to reduce this delay from 24 months to 18 months. The collaborative approach to lean management with clients and General consultants not only mitigated the schedule delay but also minimized TBM idle time, a critical aspect with high risks. Additionally, process optimization techniques, such as Value Stream Mapping (VSM) in the precast yard and TBM lowering cycle time reduction at the project site, are explored, showcasing the effectiveness of lean concepts in complex construction projects. KW - Lean construction KW - Lean Contract Management KW - Enhancing project efficiency KW - Value Stream Mapping (VSM) KW - Big Room Planning and Collaborative Planning PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2208/pdf L2 - http://iglc.net/Papers/Details/2208 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Cost Control in Modular Construction: A Taxonomy for Effective Cost Management C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 167 EP - 178 PY - 2024 DO - 10.24928/2024/0215 AU - Keorapetse, Margaret P. AU - Utzig, Helena AU - Formoso, Carlos T. AD - Ph.D. Student, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, margaret.keorapetse@ufrgs.br, http://orcid.org/0000-0003-1037-5968 AD - MSc Student, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, helenautzig@gmail.com, http://orcid.org/0000-0002-8213-4808 AD - Professor, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, formoso@ufrgs.br, http://orcid.org/0000-0002-4772-3746 AB - The cost effects of modular construction, which shares the same principles with lean construction, have been a subject of debate among researchers, with contrasting perspectives on how to control costs, compared to traditional construction cost management methods. Proponents of modular construction indicate that it can potentially be cost effective compared to traditional construction. As modular construction is gaining momentum in the construction industry, slowly replacing traditional on-site construction methods, there is a need for new cost control methods. The unique characteristics of modular construction create distinctive cost control difficulties. In this article, an attempt is made to showcase challenges and factors influencing costs in modular construction. The aim of the study is to propose a taxonomy of costs for modular construction processes. The study is ongoing and preliminary results presented in this article seek to understand the production process of modular construction, its associated costs and highlight potential cost control methods that align with the unique features of modular construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2209/pdf L2 - http://iglc.net/Papers/Details/2209 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Doubling Throughput With Optimized Cycle-Time Flow (OCF) Strategy C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 179 EP - 189 PY - 2024 DO - 10.24928/2024/0132 AU - Gabai, Doron S. AU - Haronian, Eran AU - Kennard, Nikita S. AU - Sacks, Rafael AU - Miera, Mark K. AU - Cloyd, Tabitha D. AD - PMP, PgMP, LCI Israel Chairman, Strategic Planner, Intel Corporation, AZ Construction, USA. doron.gabai@intel.com, https://www.lci-israel.org/, AD - Lecturer, Department of Civil Engineering, Ariel University, Ariel, 40700, Israel, eranha@ariel.ac.il AD - OCF Research Specialist, Intel Corporation, AZ Construction, USA. nikita.kennard@intel.com AD - Professor, Virtual Construction Laboratory, Faculty of Civil and Env. Eng. Technion – Israel Institute of Technology, cvsacks@technion.ac.il, orcid.org/0000-0001-9427-5053 AD - PMP, Senior Director of Construction, Intel Corporation, AZ Construction, USA. mark.k.miera@intel.com AD - Director of Construction, Intel Corporation, AZ Construction, USA. tabitha.d.cloyd@intel.com AB - Despite the availability of advanced managerial tools and technologies for project planning and control, projects failing to meet schedules and budget targets remains a common phenomenon. We argue that a root cause for these failures is the absence of strategic planning. Optimized Cycle-time Flow (OCF) is a strategy developed by Intel Inc., that enables teams to plan portfolios of projects subject to resource constraints and the principles of flow, while avoiding the pitfalls of the planning fallacy and unnecessary time-extensions. This paper presents a thorough exploration of OCF through a case study in a typical installation project, one of the first OCF implementations. Practical applications of the principles of OCF are explored through analysis of construction plans and interviews with key personnel. The paper provides supplementary observations and validation of empirical findings regarding the effectiveness of OCF. The multi-project environment and the sense of urgency to reduce time-to-market are recognized as a catalyzer for OCF. The case study highlights the importance of critical production thinking as manifested in the first two OCF principles: “Plan and Integrate Strategically” and “Plan Tactical Targets”. KW - Constraint Management KW - Design Science Research KW - Last Planner® System KW - Optimized Cycle-Time Flow (OCF) KW - Production Control KW - Strategic Integration & Planning KW - Target Pull-Plan PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2210/pdf L2 - http://iglc.net/Papers/Details/2210 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Reduction of Floor Cycle Time Variability in High-Rise Building Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 190 EP - 201 PY - 2024 DO - 10.24928/2024/0139 AU - Cossio, Bernardo de AU - Murguia, Danny AU - Cossio, Jorge Gonzalez de AU - Cossio, Jorge Antonio Gonzalez de AD - Senior Project Manager, ITN de Mexico, Mexico, bcossio@itnmexico.com, orcid.org/0009-0005-3556-8629 AD - Senior Research Associate, Department of Engineering, University of Cambridge, United Kingdom, dem52@cam.ac.uk, orcid.org/0000-0003-1009-4058 AD - Director, ITN de Mexico, Mexico, jcossio@itnmexico.com, orcid.org/0009-0001-4949-827 AD - Senior Project Manager, ITN de Mexico, Mexico, acossio@itnmexico.com, orcid.org/0009-0005-0963-5621 AB - High-rise building construction projects, characterized by their inherent complexity and susceptibility to unpredictable variations such as complex logistics, weather, and resource availability, often face challenges in maintaining schedule reliability. Despite the potential for optimization due to the repetitive nature of high-rise structures, traditional planning methods struggle to address the cascading effects of variability, resulting in long cycle times for completed floors and frequent shifts in estimated completion dates. This paper presents the outcomes of implementing a Last Planner System (LPS)-based strategy for the structural frame of two high-rise buildings. Key performance metrics such as cycle time, production rates, and labor productivity were chosen to evaluate the impact. The findings demonstrate that detailed operational planning and interventions to support continuous improvement reduce the floor cycle time and its variability. Furthermore, the results offer tangible evidence of actual performance, providing practitioners with the necessary data to create more realistic master plans. This approach enhances the operational efficiency of high-rise construction projects and contributes to the broader understanding of effective strategies for managing schedule variability. KW - Phase scheduling KW - flow KW - variability KW - continuous improvement KW - standardization. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2211/pdf L2 - http://iglc.net/Papers/Details/2211 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - No Single Takt Planning Method Fits All Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 202 EP - 213 PY - 2024 DO - 10.24928/2024/0151 AU - Tommelein, Iris D. AU - Coelho, Rafael V. AU - Formoso, Carlos T. AU - Barth, Karina B. AU - Vargas, Fabrício Berger de AD - Distinguished Professor, Civil and Envir. Eng. Dept., Director, Project Production Systems Laboratory (P2SL), University of California, Berkeley, CA, USA, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 AD - PhD Candidate, Civil and Envir. Eng. Dept. and Project Production Systems Laboratory (P2SL), University of California, Berkeley, CA, USA, rvcoelho@berkeley.edu, orcid.org/0000-0003-3298-3622 AD - Professor, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 AD - Researcher, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, kbertotto@gmail.com, orcid.org/0000-0001-9612-6246 AD - PhD Student, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil, engfabriciovargas@gmail.com, orcid.org/0000-0001-6622-0020 AB - Takt planning methods have been used to plan and control production of a variety of construction projects that have been delivered in various contexts. Recognizing that projects vary by type based on different product- and process designs as well as contextual characteristics of relevance to project production, not one but several takt planning methods have therefore emerged. This paper presents the objectives pursued in takt planning and describes projects by type and context, based on their complexity, in relation to these objectives. It outlines several takt planning methods and then matches those methods to project types and contexts. It is clear that no single takt planning method fits all projects and also that takt planning may not be a suitable method to plan some projects. This paper aims to shed light on available takt planning methods and on choosing which one to use when considering the complexity of a given project and its context. KW - Takt planning KW - takt production KW - work structuring KW - complexity KW - uncertainty KW - variability KW - slack. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2212/pdf L2 - http://iglc.net/Papers/Details/2212 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Review of Poka Yoke in Construction Projects: Classification, Benefits and Barriers C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 214 EP - 225 PY - 2024 DO - 10.24928/2024/0152 AU - Melgar-Morales, Mauricio A. AU - Erazo-Rondinel, Andrews A. AU - Abregu-Gonzales, Josep J. AU - Nuñez-Quispe, Ronald R. AU - Cruz-Huamani, Carlos I. AU - Ccoyllar-Escobar, Isaac M. AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, mauricio.melgar.m@uni.pe, orcid.org/0009-0007-6491-4134 AD - Teaching Assistant, Professional School of Civil Engineering, Universidad Continental, Huancayo, Peru, aerazo@continental.edu.pe, orcid.org/0000-0002-5639-573X AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, josep.abregu.g@uni.pe, orcid.org/0009-0003-5663-0474 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, ronald.nunez.q@uni.pe, orcid.org/0009-0006-0993-4442 AD - Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, carlos.cruz.h@uni.pe, orcid.org/0009-0002-4604-1935 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, isaac.ccoyllar.e@uni.pe, orcid.org/0000-0003-3736-0993 AB - The construction industry is a critical sector in the economy of countries; however, it has low productivity and is associated with errors and rework. In response, poka yoke or mistake-proofing devices have been developed to avoid errors or reduce the possibility of committing them. Their application has been documented in manufacturing and, to a lesser extent, in the construction sector, where the literature on this subject is scarce. Therefore, the following article aims to develop a literature review of poka yoke in the construction sector. To this end, a literature review was conducted using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis). Twenty-five articles related to poka yoke were analyzed. From the literature review, it was obtained that the main poka yoke found corresponds to the principle of facilitation; the main benefits reported were improvement of quality and performance and reduction of errors, and the main barrier is the lack of training on the subject. The following article will contribute to professionals and researchers in the construction sector to have a better understanding of the applications of poka yoke. KW - Poka yoke KW - mistake-proofing KW - Lean Construction KW - PRISMA PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2213/pdf L2 - http://iglc.net/Papers/Details/2213 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - About Time-Cost Trade-Offs in Takt Planning C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 226 EP - 237 PY - 2024 DO - 10.24928/2024/0157 AU - Tommelein, Iris D. AD - Distinguished Professor, Civil and Environmental Engineering Department, and Director, Project Production Systems Laboratory, University of California, Berkeley, USA, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 AB - Time-cost trade-off problems in construction scheduling are well known and described in the literature, but time-cost trade-off problems pertaining specifically to takt planning have received little attention to date. Previous papers have introduced concepts and applications of takt planning (aka. takt production) in construction. They addressed production systems design questions and presented various takt planning methods. Quite a few of those papers also mentioned how takt planning helps cope with variability that is known at the time of planning and with the manifestation of variability when it is encountered during plan execution. Coping methods include the use of capacity- (people and their means of production), materials- (inventory), space-, and time buffers. These buffers—and of course money too (financial buffers or contingencies)—come at a cost. This paper explores various costs to be considered in the takt planning process and it presents trade-offs that can be made to meet selected objectives. The goal is to initiate discussion on this topic and help spur further quantification of the advantages of using takt when designing project production systems. KW - Takt planning KW - buffers KW - slack KW - direct cost KW - indirect cost KW - fixed cost KW - variable cost KW - cost management KW - buffer management. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2214/pdf L2 - http://iglc.net/Papers/Details/2214 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Rigorous 2-Hour Takt Reveals Upstream Underperformance C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 238 EP - 249 PY - 2024 DO - 10.24928/2024/0219 AU - Alhava, Otto AU - O’Loughlin, Matthew AU - Haapasalo, Harri AU - Viitanen, Jaakko AU - Pitkäranta, Tomi AD - CTO, Flow Technologies Oy, Helsinki, Finland, otto.alhava@fira.fi, orcid.org/0000-0001-8820-0522 AD - Site manager, Fira Rakennus Oy, Vantaa, Finland, matthew.oloughlin@fira.fi, orcid.org/0009-0005-1317-8355 AD - Professor, Department of Industrial Engineering and Management, University of Oulu, Finland, harri.haapasalo@oulu.fi, orcid.org/0000-0001-5413-5638 AD - Project director, Fira Rakennus Oy, Vantaa, Finland, jaakko.viitanen@fira.fi, orcid.org/0009-0006-7343-2797 AD - Head of Product, Sitedrive Oy, Helsinki, Finland, tomi.pitkaranta@sitedrive.com, orcid/ 0000-0003-1100-0578 AB - The primary purpose of this study is to demonstrate that rigorous production control requires high quality and flawlessness in the upstream production process. The research approach is a quantitative case study. One-piece flow forms the theoretical framework combined with the “sea of inventories” logic. The empirical material is collected from the case company’s renovation projects’ data, documentation, meeting minutes, and training material. The definition, modelling, and analysis of the production system are fundamental to continuous improvement in construction. Systematic analysis, documentation, quality control, and quality assurance enable fact-based improvement and control of the production system. Our study, following the logic of continuously tightening requirements for control variables in the production flow, reveals upstream underperformance and drives the elimination of the problems, thus improving efficiency. In our case, company evidence shortening the takt from 4 hours to 2 hours reveals hidden problems in upstream flow, resulting in continuous improvement in production quality. Overall, our study provides evidence of the applicability of one-piece flow in construction. KW - One-piece flow KW - Toyota Production System KW - JIT KW - Takt PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2215/pdf L2 - http://iglc.net/Papers/Details/2215 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Short Takt in Construction: A Systematic Literature Review C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 250 EP - 260 PY - 2024 DO - 10.24928/2024/0226 AU - Munkvold, Malin Furuli AU - Drevland, Frode AD - M.Sc. Graduate, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. AD - Associate Professor, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, frode.drevland@ntnu.no, orcid.org/0000-0002-4596-1564 AB - Over the past decade, Takt planning has steadily gained ground as a production system design scheme in construction projects. The approach entails organising trades as wagons in a train and running that train through a set of designated work areas in a building, with the train making regular stops and the wagons spending a fixed amount of time – the takt – in each area. The most common takt in construction projects is weekly takt. While using a shorter takt in combination with smaller work areas yields a shorter overall execution time, there is limited research on the actual consequences and feasibility of reducing takt time in practice. This paper conducts a systematic literature review on using short takt in construction projects, seeking to consolidate existing knowledge and suggest avenues for future research. From searches in the Scopus and IGLC.net databases, the paper identifies 13 articles related to using short takt in construction projects. The articles are analysed using thematic coding, revealing seven themes: maturity, planning and preparation, production monitoring, visual management,mock-ups, logistics, and collaboration. Key insights include the importance of rigorous follow-up during production and the advantage of experience in managing short takt times. The paper concludes that the sum of existing knowledge on short takt times in construction is limited, offering minimal practical guidance for implementation. This identifies an urgent need for further research to fill this significant gap. KW - Lean construction KW - production system design KW - takt KW - short takt PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2216/pdf L2 - http://iglc.net/Papers/Details/2216 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Digital Twin Based Integrated Decision Support System for Enhanced Decision-Making in the Last Planner System C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 609 EP - 621 PY - 2024 DO - 10.24928/2024/0117 AU - Wang, Zhong AU - Sabek, Mohamed AU - Wu, Yulun AU - Mei, Qipei AU - Lee, Gaang AU - González, Vicente A. AD - PhD Student, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, zhong15@ualberta.ca, 0000-0002-7113-3439 AD - PhD Student, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, sabek@ualberta.ca, 0009-0005-2906-9874 AD - PhD Student, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, yulun6@ualberta.ca, 0000-0003-4281-4961 AD - Assistant Professor, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, qipei@ualberta.ca, 0000-0003-1409-3562 AD - Assistant Professor, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, gaang@ualberta.ca, 0000-0002-6341-2585 AD - Professor, Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Canada, vagonzal@ualberta.ca, 0000-0003-3408-3863 AB - This paper discusses the enhancement of decision-making within the Last Planner System (LPS) through digitalization, emphasizing the role of a Digital Twin-based Integrated Decision Support System (DT-IDSS) aligned with Lean Construction 4.0 principles. The proposed conceptual framework DT-IDSS aims to address the challenges in LPS decision-making in terms of autonomation, data integrity, user-centricity, and decision-making rapidness, by integrating user-centric design with advanced technologies such as Digital Twins, Internet of Things, Blockchain, and Artificial Intelligence. It features a decentralized reality capture flow for data processing and storage, and an information loop fostering collaborative stakeholder engagement. The system's user-centric development loop adopts an agile, iterative approach, meeting the dynamic needs of construction projects. The integrations of workflows and technologies in the proposed framework has a huge potential in addressing challenges in the deficiency in system integration, which are essential to effectively support information, computation, visualization, and services, thereby enabling stakeholders to make informed decisions. Future research will focus on assessing decision-making effectiveness, enhancing system scalability, improving data management security, and achieving interoperability with existing management systems. This research contributes to the digital transformation of decision-making process, aiming to provide guidance for future developments in this rapidly evolving field. KW - Last Planner® System (LPS) KW - Lean Construction 4.0 KW - Integrated Decision Support System (IDSS) KW - Digital Twin KW - Smart Digital Technologies (SDTs) PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2217/pdf L2 - http://iglc.net/Papers/Details/2217 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean-BIM Synergy in the Construction Design Phase: Auto-Generation and Evaluation of Thermal Alternatives C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 622 EP - 631 PY - 2024 DO - 10.24928/2024/0121 AU - Mounla, Karim El AU - Beladjine, Djaoued AU - Beddiar, Karim AD - CESI LINEACT, 230 Rue Roland Garros, 29490 Guipavas, Brest 29200, France, kelmounla@cesi.fr / 2 Brest Métropole, 24 Rue Coat ar Gueven, 29200 Brest, France. AD - CESI LINEACT, 8 Rue Isabelle Autissier, 17140 Lagord, France. AD - CESI LINEACT, 1 Av. Augustin-Louis Cauchy, 44307 Nantes, France. AB - This study explores the integration of Lean principles with Building Information Modeling (BIM) to enhance decision-making in the relatively unexplored field of thermal design for construction projects. Recognizing the limitations of current design processes, characterized by insufficient alternatives and a lack of team collaboration, we introduce a new decision-making tool. This tool centers on a breakthrough framework and algorithm that bridge BIM with Lean techniques. It facilitates the automatic generation and evaluation of insulation material alternatives for residential buildings by integrating the Pleiades software database and Industry Foundation Classes (IFC) BIM data. Our study details an automated process for selecting insulation materials through an iterative, criteria-based approach that systematically identifies the three most viable solutions using Set-Based Design methods. It then selects the optimal one by examining and evaluating their criteria according to the project's needs based on energy efficiency, profitability, and sustainability through the Choosing By Advantages method. Additionally, by incorporating Big Room and BIM, our tool promotes enhanced communication and collaboration from the outset of the design phase, underscoring the significance of this integration in automating and optimizing thermal engineering projects. KW - Lean Construction KW - Set-based Design KW - Choosing By Advantages KW - Building Information Modeling KW - Big Room PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2218/pdf L2 - http://iglc.net/Papers/Details/2218 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - BIM and IoT Integration for Construction and Logistics Management: A State-of-the-Art Review C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 633 EP - 647 PY - 2024 DO - 10.24928/2024/0123 AU - Fatemifar, Kamyar AU - Zeng, Qinghao AU - Pishdad, Pardis AD - Ph.D. Student, School of Building Construction, Georgia Institute of Technology, USA, kfatemifar3@gatech.edu, orcid.org/0000-0003-4654-7960 AD - Ph.D. Student, School of Building Construction, Georgia Institute of Technology, USA, qzeng41@gatech.edu, orcid.org/0000-0002-4313-6800 AD - Associate Professor, School of Building Construction, Georgia Institute of Technology, USA, pardis.pishdad@design.gatech.edu, orcid.org/0000-0003-4208-9755 AB - Considered a promising avenue for achieving improvements in construction and logistics management, the integration of Building Information Modelling (BIM) and the Internet of Things (IoT) has proposed the ability to revolutionize the Architectural, Engineering, Construction, and Facility Management (AECFM) industry. Many studies have been examining different applications of BIM and IOT integration, specifically within the context of industry 4.0 through recent years. However, the existing literature appears to be fragmented due to the absence of review and categorization, leading to difficulties for practitioners and researchers in identifying trends and gaps. This paper delves into the convergence of BIM and IoT within the field of construction and logistics management by reviewing and categorizing the current cited literature derived from various journals using OpenAlex. On the one hand, the results suggest the utilization of RFID and LoRa for logistics, tracking, and inventory management with BIM and IoT as the most frequent topic. On the other hand, the implementation of BIM and IoT for simulating emergency evacuation scenarios is the least mentioned topic. The main foci within each topic-subcategory are also highlighted and described respectively. KW - Building Information Modeling KW - Internet of Things KW - Construction Management KW - Logistics Management PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2219/pdf L2 - http://iglc.net/Papers/Details/2219 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Ontology for Representing Crawler Crane Operational Space Requirement on Semantic Web C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 648 EP - 659 PY - 2024 DO - 10.24928/2024/0134 AU - Agrawal, Ajay Kumar AU - Zou, Yang AU - Chen, Long AU - Jin, Hongyu AU - Abdelmegid, Mohammed Adel AD - PhD Candidate, Department of Civil and Environmental Engineering, University of Auckland, Auckland, New Zealand, aagr657@aucklanduni.ac.nz, orcid.org/0000-0001-8669-3255 AD - Senior Lecturer, Department of Civil and Environmental Engineering, University of Auckland, Auckland, New Zealand, yang.zou@auckland.ac.nz, orcid.org/0000-0001-6150-6126 AD - Lecturer, School of Architecture, Building and Civil Engineering, Loughborough University, Leicestershire, UK, L.Chen3@lboro.ac.uk, orcid.org/0000-0002-6771-752X AD - Lecturer, Department of Civil and Environmental Engineering, University of Auckland, Auckland, New Zealand, hongyu.jin@auckland.ac.nz, orcid.org/0000-0001-9316-6971 AD - Lecturer, School of Civil Engineering, University of Leeds, Leeds, UK, M.Abdelmegid@leeds.ac.uk, orcid.org/0000-0001-6205-570X AB - Lookahead planning incorporates checking and removing operational constraints to develop achievable plans. The manual constraint-checking process is arduous because (1) Construction constraints are dynamic due to constantly changing project conditions, and (2) The information concerning constraints, e.g., attributes and status, are dispersed across heterogeneous databases. While semantic web technology has been used to automate constraint-checking and address these issues, space constraints, e.g., space needed for resource operation, have often been ignored. Cranes are crucial construction resources, necessitating checking of associated space constraints for developing constraint-free lookahead plans. Representing crane operational space requirements on the semantic web should be the first step for such checking. However, existing ontologies cannot do so. This study aims to develop a Crane Space Representation Ontology (CSRO) to represent different components of the operational space of a crawler crane with a lattice boom. Built using Ontology Development 101 methodology, CSRO includes four classes, 19 subclasses, nine object properties, and seven datatype properties, representing crane operational space with diverse geometries like bounding box, cylinder, and cone. Automated consistency checking and task-based evaluation confirm the CSRO's consistency and effectiveness in addressing the competency questions regarding various aspects of space requirements for crane operation. KW - Last Planner® System KW - Lookahead Planning KW - Constraint Analysis KW - Semantic Web KW - Crawler Crane. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2220/pdf L2 - http://iglc.net/Papers/Details/2220 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Automated Data Capture and Analysis to Detect Process Waste in Interior Finishing Work C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 660 EP - 671 PY - 2024 DO - 10.24928/2024/0135 AU - Asmone, Ashan Senel AU - Murguia, Danny AU - Rathnayake, Asitha AU - Middleton, Campbell AD - Research Associate, Department of Engineering, University of Cambridge, UK, asa79@cam.ac.uk, orcid.org/0000-0002-2173-3890 AD - Senior Research Associate, Department of Engineering, University of Cambridge, UK, dem52@cam.ac.uk, orcid.org/0000-0003-1009-4058 AD - PhD Candidate, Department of Engineering, University of Cambridge, UK, agbrr2@cam.ac.uk, orcid.org/0000-0002-1389-7801 AD - Professor, Department of Engineering, University of Cambridge, UK, prof@construction.cam.ac.uk, orcid.org/0000-0002-9672-0680 AB - Detecting process waste in complex production systems is still a challenge in construction projects. The integration of lean construction with automated data capturing technologies presents an opportunity to timely detect process waste and steer projects towards targets. By using vision-based technology for automated progress monitoring in a residential building, this study examines interior finishing work activities through the lenses of process/location flow and operations/trade flow. Location-based management tools (flowlines and line-of-balance) were used to visualise the data. Results showed that planned production deviated from actuals in all activities. Significant variability was observed within the completion of each activity at each location. The ratio between average production rate and exemplar performance indicated a missed opportunity to improve project performance. Resultantly, several waste types were identified including inefficient work, space not being worked in, unnecessary movement of people and unnecessary transportation of materials. The ability to actively pinpoint process waste provides managers with a granular understanding of inefficiencies, enabling targeted interventions to enhance productivity and reduce waste. The findings support that automated data capturing and analytics through the lenses of lean construction is a useful strategy to inform construction programmes to be more realistic, improving upon efficiency and waste reduction. KW - Flow KW - process KW - waste KW - location-based management (LBM) KW - work in progress/process (WIP). PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2221/pdf L2 - http://iglc.net/Papers/Details/2221 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Exploring User Experience and Effectiveness of an Innovative Leanbuild UK Project Management Software: Usability Study Post Development Stage C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 672 EP - 683 PY - 2024 DO - 10.24928/2024/0138 AU - Musa, Muktari M. AU - Daniel, Emmanuel I. AU - Ahmed, Namadi S. AU - Enedah, Ifeatu C. AU - Job, Momoh AU - Haa, Samuel I. AD - MD/CEO, LeanBuild Limited, UK muktari@leanbuild.co.uk, macclimited@yahoo.com, orcid.org/0000-0002-9650-3125 AD - Senior Lecturer in Construction Management, School of Architecture and Built Environment, Faculty of Science and Engineering., University of Wolverhampton, Wolverhampton, UK, e.daniel2@wlv.ac.uk, orcid.org/0000-0002-5675-1845 AD - Lecturer, School of Engineering and the Environment, Department of Civil Engineering, Surveying and Construction Management, Kingston University: London, Greater London, GB. s.ahmed@kingston.ac.uk, orcid.org/0000-0002-3815-0683 AD - Lead Program Manager, LeanBuild Limited, UK ifeatu@leanbuild.co.uk, orcid.org/0000-0002-3101-9658 AD - Lecturer, School of Engineering and Architecture, Department of Construction, Property, and Surveying,, London South Bank University, UK momohj@lsbu.ac.uk, orcid.org/0000-0001-9103-8933 AD - Program Manager, LeanBuild Limited, UK haasamuel@leanbuild.co.uk, samhaa19@gmail.com, orcid.org/0000-0001-7910-0714 AB - This paper explores the usability and efficiency of the LeanBuild project management software; an innovative solution rooted in Lean Construction 4.0 principles. Through collaboration with the University of Wolverhampton UK, Kingston University UK, and London South Bank University UK, the LeanBuild Limited project presents a promising innovation in the construction industry. The integration of usability evaluations and user recommendations in software development is limited, despite the importance of usability testing. Even with limited adoption of construction project management software, Target Value Delivery principles are often overlooked. The study employs a mixed-methods approach, incorporating focus groups, questionnaires, and interviews to assess the software's usability. Recommendations gathered from industry practitioners, academics, and IT professionals emphasize the need for improvements such as financial reporting, critical path display, resource assignment features, simultaneous file uploads, BIM integration, enhanced security, and E-Tendering and Marketplace integration. The paper concludes that despite requiring further enhancements from its minimum viable product, LeanBuild is an effective solution, endorsed by users as a viable and scalable innovation with global applicability for efficient project delivery. This study highlights the importance of post-development usability checks and positions LeanBuild as a significant breakthrough in the construction software landscape. KW - Lean construction KW - Digital Innovation KW - Project management KW - Software Usability test KW - Target Value Delivery PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2222/pdf L2 - http://iglc.net/Papers/Details/2222 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A BIM-Lean Approach to Implement Lean Principles in Offsite Construction Projects: A Cable-Stayed Bridge Case Study C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 684 EP - 696 PY - 2024 DO - 10.24928/2024/0146 AU - Assaf, Mohamed AU - Hedges, Otto AU - Mao, Zeyu AU - Golabchi, Hamidreza AU - Li, Xinming AU - Gonzalez, Vicente A. AU - Hamzeh, Farook AD - P.h.D Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, massaf2@alberta.ca AD - P.h.D Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, ohedges@ualberta.ca AD - P.h.D Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, zmao5@ualberta.ca AD - P.h.D Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, hm7@ualberta.ca AD - Assistant Professor, Department of Mechanical Engineering, University of Alberta, Edmonton, Canada, xinming.li@ualberta.ca AD - Professor and Tier 1 Canada Research Chair in Digital Lean Construction, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, vagonzal@ualberta.ca AD - Professor, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada, hamzeh@ualberta.ca AB - Recently, the attention to offsite construction (OSC) has grown due to its potential for waste minimization, higher quality, and speedy construction. However, OSC projects are sometimes adopted at a slow pace due to inefficient workflow. Further, OSC adoption requires a high level of information sharing to integrate the manufacturing of components, onsite assembly, and logistics processes. Previous research on the integration of Lean principles with advanced technologies, i.e., BIM and blockchain, in OSC was limited to improving the onsite operations only. To this end, this research aims to bridge this gap by providing a BIM-blockchain system to apply lean principles in enhancing the workflow of the OSC projects considering offsite, onsite, and logistics operations. Lean principles, namely Kaizen, Heijunka, Just-in-Time, One-piece flow, and Poke a yoke, form the focus of this study. Further, the study presents a secure information-sharing system based on blockchain technology to update the status of the process, i.e., pulling material from the inventory. A case study is introduced to validate the developed system. The proposed system is expected to improve the efficiency of the OSC operations and enhance the integration of stakeholders. KW - Lean Construction KW - Offsite Construction KW - BIM KW - Smart Contract KW - Blockchain. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2223/pdf L2 - http://iglc.net/Papers/Details/2223 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Integrated Facility Management System Supported in Vdc and Lean C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 697 EP - 706 PY - 2024 DO - 10.24928/2024/0158 AU - Bazán Montalto, Alvaro Daniel AU - Vidal Quincot, Jose Francisco AU - Del Savio, Alexandre Almeida AD - BSc in Civil Engineering, Civil Engineering Department, Universidad de Lima, Lima, Peru, alvbazanm@gmail.com, https://orcid.org/0000-0003-2520-8767 AD - BSc in Civil Engineering, Civil Engineering Department, Universidad de Lima, Lima, Peru, josevidalquincot@gmail.com, https://orcid.org/0000-0001-8036-7643 AD - Full Professor, Civil Engineering Department, Universidad de Lima, Lima 15023, Peru, delsavio@gmail.com, https://orcid.org/0000-0002-6067-6606 AB - The operational costs during the maintenance phase can account for 15% to 70% of a facility's total life cycle expenses, depending upon the type and size of the project. This paper explores the integration of Virtual Design and Construction (VDC) and Lean methodologies, offering practical solutions to optimize the maintenance operations of an engineering laboratory. A comprehensive literature review was conducted to identify common challenges in facility management and assess existing methods and technologies to address these issues. This research introduces the concepts of VDC and Lean within maintenance management, proposing an Integrated Facility Management System (IFMS) that applies these frameworks to the operations and maintenance (O&M) processes. The IFMS aims to harmonize the facility's physical structure, organizational dynamics, and procedural workflows, providing a practical roadmap for facility managers and maintenance professionals. Implemented in an engineering laboratory in Lima, Peru, the IFMS has significantly improved maintenance efficiency. The results include a fivefold reduction in the average time required for corrective maintenance and a 50% decrease in the incidence of such maintenance tasks. Finally, applying VDC and Lean principles to the maintenance phase can yield substantial operational benefits, as evidenced by the data from the implemented IFMS. KW - Facility Management KW - VDC KW - Lean KW - Value stream KW - Integrated Project Delivery (IPD) KW - BIM. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2224/pdf L2 - http://iglc.net/Papers/Details/2224 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Can ChatGPT Help With the Last Planner® System Implementation? An Expert Overview C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 707 EP - 718 PY - 2024 DO - 10.24928/2024/0160 AU - Erazo-Rondinel, Andrews A. AU - Melgar-Morales, Mauricio A. AU - Abregu-Gonzales, Josep J. AU - Napa-Almeyda, Juan A. AU - Lipa-Mamani, Diego S. AD - Teaching Assistant, Professional School of Civil Engineering, Universidad Continental, Huancayo, Peru, aerazo@continental.edu.pe, orcid.org/0000-0002-5639-573X AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, mauricio.melgar.m@uni.pe , orcid.org/0009-0007-6491-4134 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, josep.abregu.g@uni.pe , orcid.org/0009-0003-5663-0474 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, juan.napa.a@uni.pe , orcid.org/0009-0008-5475-957X AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, diego.lipa.m@uni.pe , orcid.org/0009-0009-8695-2654 AB - In recent years, the construction sector has been influenced by different technologies, which has given way to construction 4.0. One of the elements of Construction 4.0 is the use of artificial intelligence, and in recent years, chatbots have become popular in different industries, including construction. However, the literature on how chatbots can help in construction projects is limited. In this sense, the following article aims to study the degree of reliability presented by a chatbot (ChatGPT) to improve the implementation of the Last Planner® System (LPS). This article begins with a literary review of LPS barriers. From this, 13 main barriers are validated with the help of 10 expert judgments. After that, ChatGPT 3.5 is interacted with to provide possible solutions to the barriers found, which are validated again with eight expert judgments. The results show that 68.27% of ChatGPT responses are “Totally agree” and “Somewhat agree.” The following article will contribute to professionals in the construction sector so that they can evaluate the reliability of chatbots and explore their applications to solve LPS implementation problems and other problems in construction projects. KW - Last Planner KW - Artificial Intelligence KW - ChatGPT KW - construction 4.0 KW - lean construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2225/pdf L2 - http://iglc.net/Papers/Details/2225 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Digital Monitoring for Lean Construction: Efficiency in Major Indonesian Toll Road Project C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 719 EP - 730 PY - 2024 DO - 10.24928/2024/0164 AU - Mardiansyah, AU - F., Agung AU - Saputra, Rizky A. AU - Sentosa, Gregorius A. AU - Widyastuti, Amy R. AU - Wresniwira, Sastria AU - Naufal, Achmad Luthfi AU - Kusuma, Juniar R. AD - Executive Vice President Human Capital, PT. Hutama Karya (Persero), Jakarta, Indonesia, mardiansyah@hutamakarya.com, orcid.org/0009-0005-4050-5542 AD - Operational Director 1, PT. Hutama Karya (Persero), Jakarta, Indonesia, agung.fajarwanto@hutamakarya.com AD - Senior Vice President General Civil, PT. Hutama Karya (Persero), Jakarta, Indonesia, rizky.agung@hutamakarya.com, orcid.org/0009-0000-4174-8945 AD - Executive Vice President System, IT, and Research Technology, PT. Hutama Karya (Persero), Jakarta, Indonesia, aji.sentosa@hutamakarya.com, orcid.org/0009-0001-5801-6262 AD - Vice President System, IT, and Research Technology, PT. Hutama Karya (Persero), Jakarta, Indonesia, amy.rachmadhani@hutamakarya.com, orcid.org/0009-0006-7600-6064 AD - Analyst, System, IT, and Research Technology, PT. Hutama Karya (Persero), Jakarta, Indonesia, sastria.wresniwira@hutamakarya.com, orcid.org/0009-0007-5137-7253 AD - Officer, System, IT, and Research Technology, PT. Hutama Karya (Persero), Jakarta, Indonesia, achmad.luthfi@hutamakarya.com, orcid.org/0009-0002-3464-7673 AD - Bachelor of Civil Engineering Student, Department of Civil Engineering, Faculty of Engineering, Brawijaya University, Malang, Indonesia, juniarrevanska@gmail.com, orcid.org/0009-0009-1810-0214 AB - The Karangjoang-Kariangau Section 3A Toll Road Project in East Kalimantan, Indonesia, aims to connect Balikpapan City with Nusantara, the New Capital City. This 13.4 km project, primarily involving intensive earthwork, utilizes heavy equipment whose efficiency is crucial for enhancing productivity and reducing costs. Our study examines inefficiencies such as unnecessary equipment motion, transportation delays, and extended waiting times—common challenges in lean construction. We implemented a digital monitoring system to compare its effectiveness against traditional manual methods in improving resource utilization and minimizing waste. Findings indicate that digital monitoring, despite the higher initial costs, significantly helps to boost operational efficiency by providing detailed data, then the data can be used to analyze the core of the problem so that a solution is found that successfully reduces idle time by 37% and increasing equipment utilization by 39%. These results demonstrate the substantial benefits of integrating digital technologies into construction management, suggesting a crucial shift towards digital methods to meet the demands of modern infrastructure development effectively. This study underlines the alignment of digital monitoring with lean construction principles, advocating for its adoption to optimize productivity and cost-efficiency in large-scale projects. KW - Lean construction KW - waste KW - digital monitoring KW - continuous improvement PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2226/pdf L2 - http://iglc.net/Papers/Details/2226 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Review of the Role of Digital Twin Applications for Water Sustainability C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 731 EP - 742 PY - 2024 DO - 10.24928/2024/0185 AU - Qureshi, Mehwish AU - Feng, Zhenan AU - Kumar, Vishal AU - Lovreglio, Ruggiero AU - Abdelmegid, Mohammed AD - School of Built Environment, Massey University, Auckland, New Zealand, m.qureshi@massey.ac.nz, orcid.org/0009-0005-4769-0218 AD - School of Built Environment, Massey University, Auckland, New Zealand, z.feng1@massey.ac.nz, orcid.org/0000-0001-7513-8942 AD - School of Built Environment, Massey University, Auckland, New Zealand, v.kumar1@massey.ac.nz orcid.org/0000-0001-7348-7057 AD - School of Built Environment, Massey University, Auckland, New Zealand, r.lovreglio@massey.ac.nz), orcid.org/0000-0003-4596-7656 AD - School of Civil Engineering, Engineering Management, University of Leeds, West Yorkshire LS29JT, United Kingdom, m.abdelmegid@leeds.ac.uk, orcid.org/0000-0001-6205-570X AB - This paper investigates the convergence of Digital Twin (DT) applications, Lean Construction (LC) principles, and water sustainability. The DT concept, which originated in the 2000s, has gained momentum across various industries. Yet, integrating DT into the construction industry, particularly in water systems, is at an early stage. A comprehensive literature review is conducted to explore the potential benefits of DT in water management, aligning with the principles of LC. The exploration reveals the integration of DT into diverse water systems, encompassing distribution networks, sewage systems, river and lake management, dam systems, and wastewater treatment plants. The identified benefits extend beyond operational efficiency to water sustainability, addressing climate change adaptation, disaster risk reduction, and resource optimization. The study also explores the tools and technologies employed in DT applications, emphasizing their alignment with LC principles of reducing waste and fostering collaboration. Nevertheless, limitations exist in the identified tools and technologies, such as data interoperability, computational complexities, and data reliability, underscoring areas for future research to enhance DT application effectiveness. Despite these limitations, the synthesis of DT, LC, and water sustainability holds promise for transforming water resource management. This study offers guidance on achieving efficient, sustainable, and collaborative water management across various contexts. It provides essential insights for scholars, practitioners, and policymakers, emphasizing the importance of policy support and technological innovation to overcome current challenges. Furthermore, it suggests avenues for future research to evaluate the long-term effects and enhance the effectiveness of DT systems. KW - Digital Twin KW - Water Management KW - Water Sustainability KW - Lean Construction PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2227/pdf L2 - http://iglc.net/Papers/Details/2227 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Enhancing Lean Construction Through Innovative Technology: A Focus on Virtual Reality in Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 743 EP - 754 PY - 2024 DO - 10.24928/2024/0187 AU - Bidhendi, Ali AU - Poshdar, Mani AU - Nahri, Zahra AU - Won, Ji Won AU - Owais, Omar A AU - Koohestani, Kayvan AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology (AUT), New Zealand. ali.bidhendi@autuni.ac.nz, orcid.org/0000-0002-8285-5859 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology (AUT), New Zealand. mani.poshdar@aut.ac.nz, orcid.org/0000-0001-9132-2985 AD - Department of Architecture, Faculty of Art, Tarbiat Modares University (TMU), Iran. zahra.nahri@modares.ac.ir, orcid.org/0009-0005-3413-5354 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology (AUT), New Zealand. yulianajiwonwon@gmail.com, orcid.org/0009-0007-2093-2357 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology (AUT), New Zealand. omar.owais@aut.ac.nz, orcid.org/0000-0002-0788-3008 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology (AUT), New Zealand. kayvan.koohestani@autuni.ac.nz, orcid.org/ 0000- 0002-9988-3688 AB - This study delineates the integration of Virtual Reality (VR) within Lean Construction, emphasising its application across the philosophy, principles, methods, and tools of Lean Construction. By conducting a systematic literature review, this research considers the utilisation of VR to enhance construction processes, specifically focusing on its role in mitigating waste, maximising value, continuous improvement, and respect for people. The investigation reveals VR's capacity to bridge the theoretical and practical aspects of Lean Construction, offering a novel perspective on its implementation. The results demonstrate VR's potential in advancing Lean Construction practices through its philosophy, principles, methods, and tools. Also, the utilisation of VR, particularly in SCRUM, Set Based Design and Visual Management, underlines a transformative potential for enhancing construction project efficiency and value. The paper concludes by highlighting the contributions of VR to Lean Construction, proposing actionable insights for practitioners and suggesting avenues for future research. This approach provides a comprehensive review for integrating VR in construction projects, aligning with Lean Construction for enhanced project outcomes KW - Lean Construction KW - Set Based Design (SBD) KW - VDC KW - Virtual Reality (VR) KW - Smart Construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2228/pdf L2 - http://iglc.net/Papers/Details/2228 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - BIM as an Enabler of Lean Construction in the Public Sector C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 755 EP - 766 PY - 2024 DO - 10.24928/2024/0205 AU - Prado Lujan, Guillermo AU - Murguia, Danny AD - University Lecturer, Construction Management & Technology Research Group (GETEC), Pontifical Catholic University of Peru, guillermo.prado@pucp.edu.pe, orcid.org/0000-0002-5325-1132 AD - Assistant Professor, Construction Management & Technology Research Group (GETEC), Pontifical Catholic University of Peru, dmurguia@pucp.pe, orcid.org/0000-0003-1009-4058 AB - Several governments are mandating Building Information Modeling (BIM) for public construction worldwide. While this top-down approach can be effective in some contexts, the lack of a lean construction perspective within BIM project delivery might hinder the expected outcomes. This paper aims to unpack the interplay between lean principles and BIM adoption that support formal and informal lean construction implementation in the design phase of public construction projects. The study focuses on a Latin American country subject to a current BIM mandate. Qualitative data was collected through semi-structured interviews with senior public sector practitioners. The findings reveal that the BIM practices informally align with lean principles, as there is no explicit emphasis on lean implementation within the BIM mandate framework. Drawing on these insights, the discussion compares these results with previous studies and suggests the inclusion of BIM as a facilitator of lean practices in the Lean in Public Sector (LIPS) agenda. The conclusion highlights the current opportunities for leveraging the BIM public policy trend towards lean implementation in public construction projects. KW - Lean construction KW - BIM KW - lean-BIM synergy KW - lean in the public sector (LIPS) KW - public policy. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2229/pdf L2 - http://iglc.net/Papers/Details/2229 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - From Concept to Concrete: Digital Twins Enabling Different Levels of Lean Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 767 EP - 779 PY - 2024 DO - 10.24928/2024/0206 AU - Owais, Omar A. AU - Poshdar, Mani AU - Bidhendi, Ali AU - Jaafar, Kamal AU - Sarhan, Saad AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology, Auckland, New Zealand, omar.owais@aut.ac.nz, orcid.org/0000-0002-0788-3008 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology, Auckland, New Zealand, mani.poshdar@aut.ac.nz, orcid.org/0000-0001-9132-2985 AD - Department of Built Environment Engineering, School of Future Environments, Auckland University of Technology, Auckland, New Zealand, ali.bidhendi@autuni.ac.nz, orcid.org/0000-0002-8285-5859 AD - Faculty of Engineering and Information Sciences, University of Wollongong, Dubai, United Arab Emirates, KamalJaafar@uowdubai.ac.ae, orcid.org/0000-0001-9134-6215 AD - School of Engineering, University of Birmingham Dubai, United Arab Emirates, s.sarhan@bham.ac.uk, orcid.org/0000-0002-0105-2350 AB - The integration of Digital Twins (DTs) in Lean Construction (LC) represents a transformative approach to enhance collaboration, efficiency, waste reduction, and decision-making in construction projects. This paper explores the potential of DTs across different levels of LC through a comparative analysis method, aiming to establish a robust implementation foundation for lean organisations. Firstly, at the philosophy level, DTs foster collaboration, transparency, and respect for people by providing real-time data and virtual representations. They enable value maximisation, waste minimisation, and continuous improvement through visualisation, simulation, and data-driven decision-making. Besides, continuous improvement through monitoring and feedback loop. Secondly, at the principles level, DTs align closely with key LC principles such as value maximisation, continuous improvement, waste elimination, pull planning, continuous flow, and fast switch-over. By optimising processes, enhancing monitoring capabilities, and facilitating collaboration, DTs contribute to efficient project delivery. Thirdly, at the methods level, DTs complement LC methods such as Error Proofing, Value Stream Mapping, Target Value Design, and Last Planner System by facilitating real-time collaboration, visualising workflows, engaging stakeholders early, and providing error prevention capabilities. Overall, the strategic integration of DTs and LC thinking leads to improved project efficiency and value delivery, fostering ongoing innovation and improvement in the construction sector. KW - Lean construction (LC) KW - Digital Twin (DT) KW - Philosophy KW - Principles KW - Methods. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2230/pdf L2 - http://iglc.net/Papers/Details/2230 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Digital Last Planner System Implementation: Critical Successful Factors C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 780 EP - 792 PY - 2024 DO - 10.24928/2024/0227 AU - Gao, Shang AU - Chan, Toong-Khuan AU - Hendy, Phil AD - University of Melbourne, Australia, shang.gao@unimelb.edu.au, orcid.org/0000-0002-4161-5592 AD - La Trobe University, toong-khuan.chan@latrobe.edu.au, orcid.org/0000-0002-1985-6592 AD - McConnell Dowell, phil.hendy@wpalliance.com.au AB - Last Planner System (LPS) is the most popular and most widely adopted lean construction (LC) practice in the LC community. The growing maturity of LPS software encourages the implementation of digital LPS in-lieu of traditional analogue methods. With the boom in infrastructure investment in Victoria, Australia, this study aims to explore the critical factors for implementing digital LPS on Australian infrastructure projects. The study undertaken on one of five program alliances established to carry out rail and road level crossing removal projects. Adopting a case study approach, qualitative data was collected from 19 participants from two projects (Projects A and B). The findings indicate that the critical factors that underscore the successful adoption of digital LPS falls under a combination of technology, people, and organisational aspects. This includes using a suitable digital LPS platform, having LPS champions, getting employees’ buy-in, putting organisational support in place, and many others. This study also confirmed the roles that people and organisations play in driving successful adoption of digital LPS. Given this, the implications for roles such as LPS champions at project level and supporting roles within organisations are discussed. Although these are unique contextual factors, it is anticipated that this success story of adopting digital LPS will KW - Lean Construction KW - Digital Last Planer System KW - Australia KW - Infrastructure projects KW - Critical success factors PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2231/pdf L2 - http://iglc.net/Papers/Details/2231 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Quantity Take-Off in Rough Construction of High-Rise Buildings Based on CAD and BIM Methodologies: A Case Study C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 793 EP - 806 PY - 2024 DO - 10.24928/2024/0236 AU - Meléndez, Walter AU - Saavedra, Rodrigo AU - Garcés, Gonzalo AD - Department of Civil Engineering, Universidad Andrés Bello, Chile, w.melndezbernardo@uandresbello.edu AD - Department of Civil Engineering, Universidad Andrés Bello, Chile, r.saavedraortega@uandresbello.edu AD - Faculty of Engineering, Universidad del Bío-Bío, Chile, gegarces@ubiobio.cl AB - Building Information Modeling (BIM) prepares the quantity take-off (QTO) of the construction elements, helping in the management of the design and construction process and preparing the 3D visualization of the construction phases. BIM increases efficiency and gives users more control over construction-related tasks. This study identifies the New Cycle building as a Case Study, in which inconsistencies were detected in the QTO, compared to the real quantities of budgeted materials, so the interested parties decided to implement BIM in the use of QTO as a mechanism of control. The central question addressed was: If BIM had been implemented at the tender stage, could it have provided benefits to the project? To do this, various parameters were evaluated to conduct a comparative analysis between the results obtained through the use of the CAD and BIM methodology in the same project. Using the Analytical Hierarchy Process (AHP) method, it was possible to evaluate and compare the two alternatives, CAD and BIM, in order to determine which of them would have been more effective in satisfying the objectives set in the project. The results obtained offer a valuable and informed vision for making informed decisions for future construction projects, KW - Building Information Modeling; quantity take-off; work flow; collaboration. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2232/pdf L2 - http://iglc.net/Papers/Details/2232 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Promoting Health and Safety on UK Construction Sites Using Lean Construction Strategies C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 548 EP - 559 PY - 2024 DO - 10.24928/2024/0178 AU - Chaudhari, Himesh AU - Sarhan, Saad AU - Abdelmegid, Mohammed AU - Saad, Ali AU - Poshdar, Mani AD - Site Engineer, Laing O’Rourke, Melbourne, Victoria, Australia, HChaudhari@laingorourke.com.au AD - Programme Director and Assistant Professor in Advanced Engineering Management, Department of Civil Engineering, University of Birmingham Dubai, UAE, s.sarhan@bham.ac.uk, orcid.org/0000-0002-0105-2350 AD - Lecturer in Engineering Management, School of Civil Engineering, University of Leeds, UK, M.Abdelmegid@leeds.ac.uk, orcid.org/0000-0001-6205-570X AD - Lecturer in Construction Engineering and Project Management, School of Architecture Building & Civil Engineering, University of Loughborough, UK, a.saad@lboro.ac.uk, orcid.org/0000-0002-3413-4483 AD - Programme Director and Senior lecturer, Auckland University of Technology, Built Environment Engineering, New Zealand, mani.poshdar@aut.ac.nz, orcid.org/0000-0001-9132-2985 AB - Poor health and safety (H&S) conditions in the construction industry are linked to ill-defined social and economic factors. To mitigate poor construction H&S performance, it has been widely recommended that Lean Construction (LC) strategies be adopted. Existing literature shows a strong correlation between implementing LC and improving construction H&S performance. However, limited research utilises qualitative research based on primary data to understand the perspectives of experts with real-world experience on the LC/H&S relationship. To address this gap, we conducted a novel study interviewing eight highly experienced LC experts to gain insights into how LC can enhance H&S in construction projects. Going beyond theory, we conceptualised a model linking key LC methods to root causes of H&S accidents to enable tangible improvements. This model intends to guide construction professionals in adopting and implementing LC strategies to foster safer construction workplaces. Our findings affirm and extend prior research by emphasising the efficacy of LC methods in improving H&S performance in construction projects. KW - Lean Construction KW - Health and Safety KW - Accidents KW - Waste KW - Flow PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2233/pdf L2 - http://iglc.net/Papers/Details/2233 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Exploratory Study on Visual Management and Process Transparency in Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 560 EP - 571 PY - 2024 DO - 10.24928/2024/0200 AU - Neyra, Mauricio AU - Diaz, Michelle AU - Gomez, Sulyn AD - Graduate Researcher, Faculty of Civil Engineering, National University of Engineering, Lima, Peru, mauricio.neyra.p@uni.pe, orcid.org/0009-0007-7379-5798 AD - Student, Faculty of Environmental Engineering, National University of Engineering, Lima, Peru, mndiazv@uni.pe, orcid.org/0000-0002-7711-1695 AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AB - Several managerial approaches have emerged to address current construction challenges. Among them, information management addresses construction hurdles through process transparency, a core function of Visual Management (VM). Research on VM in construction has focused on its theoretical development and practical implementation. Conversely, research on process transparency has focused on highlighting its significance for construction through transparency strategies. This study aims to extend the research on process transparency and VM by identifying their current applications, measuring their degree of implementation, and highlighting their impact on team performance in two case studies based on observational protocols in Peru. The main findings are: (1) Process transparency implementation was mainly driven by internal team efforts for job facilitation, while VM primarily served job facilitation, site signage and transparency functions, (2) One site had a higher degree of process transparency while the other had a slightly higher degree of VM, and (3) team performance improvement was associated with visual practices serving the functions of transparency and job facilitation. Some recommendations for the implementation of VM systems on construction sites and for future research were also presented. KW - Lean Construction KW - information management KW - process transparency KW - Visual Management KW - team performance PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2234/pdf L2 - http://iglc.net/Papers/Details/2234 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Reflection Practices and Organizational Knowledge Management: A General Contractor Case Study C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 572 EP - 582 PY - 2024 DO - 10.24928/2024/0201 AU - Gordon, Elizabeth AU - Rawlinson, Keila AU - Dabhade, Neha AU - Reed, Dean AD - Quality Leader, DPR Construction, San Francisco, CA 94111, USA, ElizabethG@dpr.com, orcid.org/0000-0001-8165-0459 AD - Operations Business Analyst, DPR Construction, Denver, CO 80112, USA, KeilaR@dpr.com, orcid.org/0000-0001-9718-5483 AD - Project Engineer, vConsruct Private Limited, Pune, MH 411028, India, nehad@vconstruct.in, orcid.org/0000-0002-6453-6096 AD - Owner and Consultant, Capability-Building, Santa Cruz, CA USA, Dean@deansreed.com, orcid.org/0000-0002-2916-8558 AB - This paper is the sixth in a series discussing the transition of a self-performing general contractor (GC) towards early systems of measurable collaboration to achieve more reliable outcomes. This approach, known as a Systems Approach to Quality (SAQ), enhanced project performance and team culture. This paper investigates the impact of the Monday Quality Calls (MQC) initiated by the Quality Leadership Team (QLT) in 2015 as a forum for reflection, learning, and collaborative tacit knowledge sharing to build SAQ competencies and support organizational change efforts. The research aims to understand the characteristics of the MQC portfolio, evaluate the influence of the QLT, and assess trends in content development over seven years. Findings reveal the MQC's representation of the GC's work and highlight opportunities to enhance geographic and role diversity in participation to support further organizational efforts. Moreover, the paper underscores the value of the MQC as a multi-modal knowledge-sharing platform, facilitating team coaching, onboarding, and refining organizational strategies and processes. The study proposes future research and advocates for similar metrics tracking and knowledge-sharing initiatives in the industry. Ultimately, this paper contributes to refining organizational approaches to quality management and fostering collaborative learning in the Architecture Engineering Construction industry. KW - Systems Approach to Quality (SAQ) KW - Knowledge Management KW - Capability-building KW - Organizational Change KW - Action Learning Research PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2235/pdf L2 - http://iglc.net/Papers/Details/2235 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Whose Game Is It? Do Small and Medium Size Enterprises Win Alliance Contracts? C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 583 EP - 596 PY - 2024 DO - 10.24928/2024/0100 AU - Lappalainen, Eelon AU - Hänninen, Aku AU - Seppänen, Olli AU - Uusitalo, Petri AU - Heiskanen, Timo AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, eelon.lappalainen@aalto.fi, orcid.org/0000-0002-7573-344X AD - Master of Science, Ideastructura Ltd., Finland, aku.hanninen@ideastructura.com, orcid.org/0000-0001-9451-2725 AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi, orcid.org/0000-0002-2008-5924 AD - Postdoctoral Researcher, Department of Civil Engineering, Aalto University, Finland, petri.uusitalo@aalto.fi, orcid.org/0000-0002-5725-906X AD - Master of Science, Diamond Consulting Ltd., Finland, timo.heiskanen@diamondconsulting.fi AB - This empirical archival study investigates the distribution of alliance contracts (ACs) between small and medium-sized enterprises (SMEs) and large enterprises (LEs). Previous research has identified concerns about ACs in relation to the participation of SMEs in public procurement markets in the construction sector. The aim of this study was to understand how these contracts are distributed in the construction sector and to provide additional information for industry players on ACs. The study analyzed 80 investment alliance projects from 2011 to 2023, demonstrating a decreasing trend in SME participation against an increase in LE involvement. The findings revealed a concentration of ACs among a few LEs, with a significant portion of SMEs not participating in these alliances. While 81 SMEs have engaged in Finnish ACs, this number is small compared to the total number of SMEs in the industry, pointing to an imbalanced contract distribution favoring LEs. The study also noted a steady rise in the relative share of alliances in the overall construction market. This research sheds light on the challenges of asymmetric AC distribution and offers valuable insights for public works procurement bodies, industry consultants, and AC participants and researchers, highlighting the need for balanced contract allocation. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2236/pdf L2 - http://iglc.net/Papers/Details/2236 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Reconceptualizing a Model for Lean Construction Supply Chain C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 597 EP - 608 PY - 2024 DO - 10.24928/2024/0119 AU - Lello, Didas S. AU - Emuze, Fidelis A. AD - PhD Candidate, Department of Construction Management, Nelson Mandela University, Gqeberha, South Africa, Email: lellos2@yahoo.co.uk or didas.lello@aru.ac.tz, ORCID.org/ 0000-0001-6523-5466 AD - Professor, Department of Built Environment, Central University of Technology, Free State, Private Bag X20539, Bloemfontein, 9301, South Africa, Tel: (051) 507 3089, Email: femuze@cut.ac.za. ORCID.org/0000-0001-7714-4457 AB - The inefficiency of construction projects in Tanzania made popular cost overruns, extensive delays, reworks, defects and accidents, including resource waste within the construction supply chain. Although scholars have proposed diverse ways to combat supply chain problems, these efforts lack an integrated lean construction supply chain (LCSC) model. Given the persistent resource constraints characterizing the construction industry, this study reconceptualizes an LCSC model for deployment to drive out waste. A critical review of relevant literature was conducted to identify which lean supply chain model predominates in construction in order to develop an LCSC model that integrates lean construction tools and supply chain strategies that were found to proffer better solutions. The paper offers novel theoretical insights that lay a foundation for subsequent empirical and practical implications for LCSC efficiency. KW - Construction KW - Lean KW - Supply Chain KW - Model KW - Project PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2237/pdf L2 - http://iglc.net/Papers/Details/2237 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Implementing Lean Practices and a Modern Construction Method in a Social Housing Project C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 807 EP - 818 PY - 2024 DO - 10.24928/2024/0127 AU - Kemmer, Sergio AU - Marin, Leonardo L. AD - Managing Director, SK Lean Consultancy & Training Services, Manchester - UK, contato@sergiokemmer.com, orcid.org/0000-0002-0803-2096 AD - Production Planning and Control Coordinator, leonardolelinski@gmail.com, orcid.org/0009-0003-2944-5062 AB - The paper aims to explore the implementation challenges and advantages of utilising lean practices along with a modern construction method, i.e. timber frame prefabricated system, to accomplish a challenging goal in a social housing project in Brazil. It presents a case study on the construction of 518 housing units, which were built in a short period to help victims of a climate catastrophe relocate. Data was collected through semi-structured interviews, participant observation, site visits, and documental analysis. The findings suggest that relying on a single lean practice or a modern construction method may not be enough to achieve demanding project objectives, such as completing a construction project within a tight deadline. Instead, it is the appropriate combination of these initiatives that will result in a better outcome. Moreover, the study contributes to a particular issue that has not been adequately addressed by the lean community. Specifically, it sheds light on the connection between a project objective, lean concepts and managerial tools that can be used to accomplish it. KW - Lean practices KW - Last Planner® System KW - off-site construction KW - prefabrication KW - prototype. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2238/pdf L2 - http://iglc.net/Papers/Details/2238 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Analysing the Alignment Between Lean Construction and Circular Economy in Prefabricated Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 819 EP - 830 PY - 2024 DO - 10.24928/2024/0128 AU - Mourmourakis, Jaeden AU - Shou, Wenchi AU - Wang, Jun AU - Bai, Yu AD - Undergraduate student, School of Engineering Design and Built Environment, Western Sydney University, Sydney, Australia, 20231545@student.westernsydney.edu.au AD - Senior Lecturer, School of Engineering Design and Built Environment, Western Sydney University, Sydney, Australia, w.shou@westernsydney.edu.au , https://orcid.org/0000-0001-8724-8807 AD - Senior Lecturer, School of Engineering Design and Built Environment, Western Sydney University, Sydney, Australia, jun.wang@westernsydney.edu.au , https://orcid.org/0000-0003-3384-4050 AD - Professor, Department of Civil Engineering, Faculty of Engineering, Monash University, Melbourne, Australia, yu.bai@monash.edu , https://orcid.org/0000-0002-0742-0708 AB - With the recurring challenge of resources scarcity in the world, the construction industry needs to shift its attention towards sustainable practices. Prefabricated construction (PC) or modular construction has become increasingly popular in recent with its potential solution for the challenges faced, through increase of efficiency and reduction of waste. Some researchers have explored the integration of lean construction (LE) and circular economy (CE) into PC projects and highlights the benefits. However, they conclude that the implementation is in its early days and require a need for research as it holds significant potential in transition into a sustainable industry. This paper aims to exploring the alignment between CE and LC in PC through relevant resources to understand the full extent on this topic. The paper presents the research findings of 25 relevant publications that met the inclusion criteria in a statistical manner. This is to identify and summarise the known body of knowledge relevant to the topic. It shows that there is a strong link between focusing on the whole process for design, construction, and end-of-life of a building. Content was examined to discover what type and application of PC and relevant benefits and/or limitations. KW - Lean construction KW - circular economy KW - prefabricated construction KW - alignment KW - review. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2239/pdf L2 - http://iglc.net/Papers/Details/2239 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Insertion of Modular Construction Aligned With Lean Principles: A Conceptual Map Model C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 831 EP - 844 PY - 2024 DO - 10.24928/2024/0136 AU - Silva, Marcos Henrique Bueno da AU - Muianga, Elisa Atália Daniel AU - Oliveira, Kaio Pimentel Rego de AU - Granja, Ariovaldo Denis AD - Researcher - Construction Management Research Laboratory - Lagercon - Universidade Estadual de Campinas - UNICAMP, Brazil, marcoshbs25@gmail.com, https://orcid.org/0000-0002-7134-1270 AD - Researcher - Construction Management Research Laboratory - Lagercon - Universidade Estadual de Campinas - UNICAMP, Brazil, elisa.atalia@gmail.com, https://orcid.org/0000-0002-7070-3903 AD - Researcher - Construction Management Research Laboratory - Lagercon - Universidade Estadual de Campinas - UNICAMP, Brazil, kaiopimentel1@gmail.com, https://orcid.org/0000-0002-7917-8033 AD - Associate Professor - Construction Management Research Laboratory - Lagercon - Universidade Estadual de Campinas - UNICAMP, Brazil, adgranja@m.unicamp.br, https://orcid.org/0000-0002-2964-5609 AB - The construction industry presents increasing levels of competitiveness among sectors, increasingly demanding products with higher value-added and sustainability. However, problems such as: production capacity, product quality, meeting deadlines, cost control and low productivity are always in evidence for this industry. Therefore, this work aims to present strategies for inserting modular construction in projects in the housing sector. This constructive method allows the application of innovations, increased productivity, control of costs and deadlines, products with greater added value, as well as the development of lean principles in the sector. Due to the complexity involved in the theme and the limited academic development and market for the application of this construction method, this work presents a conceptual map with strategies for inserting modular construction, offering a synthetic vision for companies in the sector that wish to follow the path of modular construction can better understand the main opportunities, barriers, risks and strategies. Market externalities and alignment with lean principles are also presented. For this purpose, the Design Science Research methodological approach was used. KW - Conceptual Map Model KW - Modular Construction KW - Lean Construction KW - Real Estate. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2240/pdf L2 - http://iglc.net/Papers/Details/2240 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Defining Interfaces to Facilitate Building Module Change C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 845 EP - 856 PY - 2024 DO - 10.24928/2024/0137 AU - Zieth, Peter AU - Rocha, Cecilia Gravina da AD - PhD Student, School of Civil Engineering and Environmental Engineering, University of Technology Sydney (UTS), City Campus, Broadway, Bldg 11, Lv 11, NSW 2007, Australia, peter.zieth@student.uts.edu.au, orcid.org/0009-0008-9546-2895 AD - Senior Lecturer, School of Civil Engineering and Environmental Engineering, University of Technology Sydney (UTS), City Campus, Broadway, Bldg 11, Lv 11, NSW 2007, Australia, cecilia.rocha@uts.edu.au, orcid.org/0000-0002-2649-2432 AB - Modular construction in the building industry remains largely misunderstood, despite numerous studies on the subject. With confusion around what constitutes a module, how it is defined and differentiated from other modules, and how they interface. This study examines interface characteristics; types, standardization, and reversibility (three measurable categories based on Fixson (2005) function-component allocation (FCA) tool for product architecture assessments) and assesses product architecture interfaces to apply them to building product architecture. The intent of this examination is to understand the interface’s role in any transfer of module functions across modules. Defining interfaces to better differentiate building modules from each other should ultimately facilitate the identification of what specific functions of the building component modules that need to be designed, manufactured, assembled, changed, and disassembled. From the examination, the discussion arising seeks to advance on how a building spatial module function designation might transfer functions at an interface, to provide clarity on the functional requirements for component modules to meet. KW - Modular construction KW - prefabrication KW - flexible manufacturing KW - interfaces. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2241/pdf L2 - http://iglc.net/Papers/Details/2241 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Why Do Some Prefabricate MEP While Others Do Not? C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 857 EP - 868 PY - 2024 DO - 10.24928/2024/0145 AU - Valkonen, Tuomas AU - Alhava, Otto AU - Viitanen, Jaakko AU - Seppänen, Olli AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Espoo, Finland, tuomas.valkonen@aalto.fi, https://orcid.org/0000-0002-2710-5190 AD - CTO, Fira Group Oy, Vantaa, Finland, otto.alhava@fira.fi, orcid.org/0000-0001-8820-0522 AD - CTO, Fira Palvelut Oy, Vantaa, Finland, jaakko.viitanen@fira.fi, orcid.org/0009-0006-7343-2797 AD - Associate Professor, Department of Civil Engineering, Aalto University, Espoo, Finland, olli.seppanen@aalto.fi, http://orcid.org/0000-0002-2008-5924 AB - Prefabrication of mechanical, electrical, and plumbing (MEP) systems seems to be an obvious choice to some, while others are struggling to reach the same conclusions. Most of the literature is focused on benefits, implying prefabrication is an obvious choice. To understand reasons why different conclusions are reached, we studied two cases where one decided against, and one decided to use MEP prefabrication. While some reasons can be contributed to differences in project type, there are general conclusions to be drawn. Reluctancy to use prefabrication seems to correlate to first time experience of prefabrication, namely overestimation of direct costs, and underestimation of indirect benefits (obstacles). Moreover, in the second case, prefabrication was used as a tool to enable lean practices such as short takt time, low amount of waste, levelled production, and efficient flow of materials. The key difference between the two cases is, Case 2 uses prefabrication to reach a valued goal while Case 1 evaluated its utility without a real problem that could be solved by prefabricating. Based on the two studied cases prefabrication becomes a more attractive alternative when it is used as part of a systemic change to achieve a valued goal. KW - Prefabrication KW - Choosing by Advantages (CBA) KW - Lean construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2242/pdf L2 - http://iglc.net/Papers/Details/2242 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Business Models Emerging From Industrialized Construction Adoption C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 869 EP - 880 PY - 2024 DO - 10.24928/2024/0184 AU - Vásquez-Hernández, Alejandro AU - Alarcón, Luis Fernando AU - Pellicer, Eugenio AD - PhD Student, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, and School of Civil Engineering, Universitat Politècnica de València, Valencia, Spain. Assistant Professor, School of Applied Sciences and Engineering, Universidad EAFIT, Medellín, Colombia, avasquez5@uc.cl, orcid.org/0000-0002-1073-4038 AD - Professor, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, lalarcon@ing.puc.cl, orcid.org/0000-0002-9277-2272 AD - Professor, School of Civil Engineering, Universitat Politècnica de València, Valencia, Spain, pellicer@upv.es, https://orcid.org/0000-0001-9100-0644 AB - Industrialized Construction (IC) has been recognized as a promising approach to improving project performance. However, its benefits are not evident in the building as an entity. The background of IC reveals approaches limited to production methods, overlooking issues related to process, collaboration, supply chain, and market. IC represents a novel strategic approach for the construction sector, introducing a business logic distinct from that of project-based companies, which is timely to understand within the context of managing IC adoption. Business models (BMs) are constructs that can be employed as tools to describe and analyze such business logic. This article aims to identify in the literature the constructs proposed for analyzing BMs associated with IC adoption, their approaches, and business-configuring elements, and to identify the business models associated with cases reported in the literature. A systematic literature review and content analysis were conducted. The results revealed fourteen proposed BMs frameworks and two approaches to IC BMs. Furthermore, following the analysis of reported cases, thirteen BMs were identified, associated with seven groupings based on the roles and value chain clustering strategies linked to IC adoption. KW - Industrialized construction KW - modular construction KW - off-site construction KW - business model. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2243/pdf L2 - http://iglc.net/Papers/Details/2243 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Mass Customized Products for Industrialized Construction: Challenges and Opportunities C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 881 EP - 893 PY - 2024 DO - 10.24928/2024/0195 AU - Conte, Manoela AU - Tommelein, Iris D. AU - Formoso, Carlos Torres AU - Miller, Randall AD - PhD Candidate, Postgraduate Program in Civil Engineering: Construction and Infrastructure, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, manooelac@gmail.com, orcid.org/0000-0002-1684-1563 AD - Distinguished Professor, Civil and Environ. Engineering Department, Director, Project Production Systems Laboratory, Univ. of California, Berkeley, USA, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 AD - Professor, Building Innovation Research Unit (NORIE), Universidade Federal do Rio Grande do Sul (UFRGS). Porto Alegre, RS, Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 AD - PhD Student, Civil and Environmental Engineering Department, Project Production Systems Laboratory, University of California, Berkeley, USA, randymiller@berkeley.edu, orcid.org/0009-0005-5277-6059 AB - Developing mass customized products for industrialized construction (IC), including single- and multi-family modular housing, requires multidisciplinary, collaborative, and iterative approaches from the first stages of product development. Despite this, decisionmaking based on data pertaining to companies’ capabilities and increasing diversity of customers’ needs in IC is still in its infancy. Catalogs of houses are often extensive yet fail to take advantage of IC strategies (such as mass customization (MC), product platform, modularity, and product families), thereby undermining the competitiveness of IC against traditional construction. An opportunity exists to enhance communication among stakeholders, fostering decisions about catalog offerings based on clear understanding of their requirements, robust data analysis, and continuous improvement. This paper discusses practices, challenges, and opportunities related to the development of products and integration among stakeholders in the IC context. The research method comprised three steps: developing theoretical understanding, conducting two ongoing studies in Brazil and the United States, and leading a workshop with experts to identify practices, challenges, and opportunities regarding the development of IC products. The preliminary results indicated the imperative need for stakeholders to work together on improving product development and production system, fostering a more competitive IC industry. KW - Mass customization KW - industrialized construction KW - modular construction KW - product development KW - collaboration. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2244/pdf L2 - http://iglc.net/Papers/Details/2244 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Process Modularity – a Lean Approach to Develop Industrialised Building Platforms C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 894 EP - 905 PY - 2024 DO - 10.24928/2024/0208 AU - Islam, Mohaimeen AU - Bunster, Victor AU - Couper, Rachel AU - Yazdi, Alireza Jalali AU - Maxwell, Duncan AD - PhD Candidate, Future Building Initiative-MADA, Monash University, Australia, mohaimeen.islam@monash.edu, orcid.org/0000-0001-6322-6697 AD - Lecturer, Department of Architecture, Associate Director, Future Building Initiative-MADA, Monash University, Australia, victor.bunster@monash.edu, orcid.org/0000-0002-7665-4567 AD - Lecturer, Department of Architecture, Future Building Initiative-MADA, Monash University, Australia, rachel.couper@monash.edu, orcid.org/0000-0002-3762-7996 AD - Postdoctoral Research Fellow, Future Building Initiative-MADA, Monash University, Australia, mani.jalaliyazdi@monash.edu, orcid.org/0000-0002-4419-9504 AD - Director, Future Building Initiative-MADA, Monash University, and Research Program Lead, Building 4.0 CRC, Australia, duncan.maxwell@monash.edu, orcid.org/0000-0002-9039-1441 AB - The concept of modularity within product platforms and lean thinking has drawn attention in recent years, to achieve a balance between standardisation and customisation in industrialised building (IB). Modularity plays an important role in IB, where companies use standardised modules on common platforms for product development. Although the application of product modularity is widely discussed in the literature, the concept of modularity is not fully explored as a mechanism for process development, aiding to improve cost efficiency, quality and coordination across the IB value chain. Previous research within lean construction emphasises the importance of modularity in both product and process dimensions. However, a lack of clear understanding has impeded the full adoption of process modularity in IB platforms. This paper examines the work processes of a Japanese case company to identify modular patterns in the technical systems for varied house production. By analysing qualitative data, the findings present potential advantages of modularity in the case company’s lean approach to standardise the design, production, assembly and logistics processes. The study contributes in presenting a concept of process modularity to support developing process platforms in IB. KW - Process modularity KW - industrialised building KW - lean construction KW - platforms KW - technical system PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2245/pdf L2 - http://iglc.net/Papers/Details/2245 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Net-Zero & Digitalisation in Off-Site Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 906 EP - 917 PY - 2024 DO - 10.24928/2024/0213 AU - Onyenokporo, Nwakaego AU - Tzortzopoulos, Patricia AU - Biscaya, Sara AU - Collington, Nick AU - O'Connor, Shellie AD - Researcher, Department of Design and Built Environment, School of Arts and Humanities, University of Huddersfield, United Kingdom, n.onyenokporo@hud.ac.uk, https://orcid.org/0000-0003-3462-8878 AD - Professor, Department of Design and Built Environment, School of Arts and Humanities, University of Huddersfield, United Kingdom, p.tzortzopoulos@hud.ac.uk, https://orcid.org/0000-0002-8740-6753 AD - Reader, Department of Design and Built Environment, School of Arts and Humanities, University of Huddersfield, United Kingdom, s.biscaya@hud.ac.uk, https://orcid.org/0000-0003-4086-8552 AD - Chief Technical Officer at Company A, United Kingdom AD - Chief Operating Officer at Company A, United Kingdom AB - The UK Government set targets to achieve net-zero buildings by 2050. Consequently, there is a need for off-site construction companies to achieve net-zero over the coming years. However, small and medium-sized enterprises in off-site construction face challenges in implementing net-zero, as well as in implementing digitalisation, which can greatly support achieving net-zero targets. This paper reports on initial findings of a project focused on improving digitalisation and net-zero within an SME off-site construction company. Through process mapping and observations, implementation barriers to digitalisation and net-zero were identified, and a set of actions are suggested. The paper also discusses tools for optimising the lifecycle carbon impact of buildings. The recommendations include accurate carbon footprint measurement, creating a realistic reduction strategy, and adopting sustainable/low-carbon materials. Additionally, the paper recommends the use of smart technology to monitor as-built and compare it with the as-designed building. KW - Off-site construction; Net-zero; Lean construction; BIM. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2246/pdf L2 - http://iglc.net/Papers/Details/2246 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Role of Collaboration in Production Planning and Control in the Context of Modular Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 918 EP - 929 PY - 2024 DO - 10.24928/2024/0218 AU - Amaro, Louise C. AU - Formoso, Carlos T. AU - Bulhões, Iamara R. AU - Soares, Alexandre AD - Ph.D. Student, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, louisechiarello@hotmail.com, orcid.org/0000-0002-3412-4584. AD - Professor, Building Innovation Research Unit (NORIE), Universidade Federal do Rio Grande do Sul (UFRGS). Porto Alegre, RS, Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 AD - Assistant Professor, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, iamara.bulhoes@ufrgs.br, orcid.org/0000-0002-1519-0455 AD - CEO, Visia Construção Industrializada, Brazil, alexandre@visia.eng.br. AB - Modular construction projects have complexity attributes that differ from conventional projects. To address this complexity, collaboration within production units and between different units is essential, as it contributes to resilient performance. The aim of the investigation is to understand the role of collaboration in the implementation of production planning and control (PP&C) in modular construction projects, considering complexity attributes. A case study was conducted at a Brazilian modular construction company. The unit of analysis was the PP&C system developed in this company for managing construction site installations, strongly based on the Last Planner System. As a result, a list of collaborative processes for planning and controlling modular construction projects was presented. Each process was thoroughly evaluated across six categories of collaboration factors: behavior, communication, team, management, technology, and contractual aspects. Collaborative processes related to meetings addressed the highest number of collaboration categories, suggesting that these are the most collaborative processes. In a high-complexity project, as it is typical of this modular construction company, addressing the highest number of collaboration factors contributes to alignment between sectors and achieving project objectives. KW - Lean construction KW - Production Planning and Control KW - Modular Construction KW - Collaboration. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2247/pdf L2 - http://iglc.net/Papers/Details/2247 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Case for Lean-Based Guidelines for Construction and Demolition Waste Minimization in Zimbabwe C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 930 EP - 941 PY - 2024 DO - 10.24928/2024/0101 AU - Maponga, Kurauwone AU - Emuze, Fidelis AD - PhD Candidate, Department of Construction Management, Nelson Mandela University, Gqeberha, South Africa, kmaponga@gmail.com, orcid.org/0000-0002-5286-9635 AD - Professor, Department of Built Environment, Central University of Technology, Free State, Private Bag X20539, Bloemfontein, 9301, South Africa, Tel: (051) 507 3089, Email: femuze@cut.ac.za. ORCID.org/0000-0001-7714-4457 AB - Construction and Demolition Waste (CDW) significantly costs Zimbabwe, as most waste is directed to landfills, riverbanks, and open spaces. This has made construction practitioners call for efficient strategies such as lean construction (LC). LC could help minimize construction waste in on-site operations. It could reduce land and water pollution and the blockage of watercourses caused by CDW. Minimizing CDW creates cost savings and value for the construction project clients. Although LC has addressed CDW minimization in varying countries, this is not the case in Zimbabwe, where a pressing need for resource efficiency is urgent. Thus, this paper proposes a conceptual framework for evolving LC-based guidelines for minimizing CDW in Zimbabwe. A critical review of relevant literature was conducted to observe how LC tools are utilized to minimize CDW. Given that such a framework could limit the pollution of land and open spaces with CDW, which affects people and the built environment in general, the next phase of the doctoral study would be to test and modify it through mixed methods research empirically. KW - Lean construction KW - Demolition KW - Lean KW - Waste KW - Pollution KW - Construction projects KW - Zimbabwe PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2248/pdf L2 - http://iglc.net/Papers/Details/2248 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Performance Measurement for Infrastructure Project Sustainability C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 942 EP - 953 PY - 2024 DO - 10.24928/2024/0109 AU - Minoretti, Arianna AU - Lædre, Ola AU - Wondimu, Paulos AU - Johansen, Agnar AU - Andersen, Bjørn AD - PhD, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Norway, arianna.minoretti@ntnu.no, orcid.org/0009-0008-2432-4946; Senior Principal Engineer, Technology and Development Department, Norwegian Public Roads Administration, Norway AD - Professor, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Norway, ola.ladre@ntnu.no, orcid.org/0000-0003-4604-8299 AD - Adjunct Associate Professor, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Norway, paulos.wondimu@vegvesen.no, orcid.org/0000-0001-9421-594X; Senior Engineer, Complex Constructions Department, Norwegian Public Roads Administration, Norway AD - Professor, Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Norway, agnar.johansen@ntnu.no, orcid.org/0000-0003-0063-3679 AD - Professor, Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, Norway, bjorn.andersen@ntnu.no, orcid.org/0000-0003-0533-2816 AB - From a lean construction perspective, the role of a Public Roads Administration is to identify the value from the client’s point of view and define the processes able to develop the value stream. In the long-run strategy, the public role is to be sustainable and apply the sustainability principle in the management of the portfolio of projects under the administration's control. This implies the development of a performance measurement system for sustainability. The case of the Norwegian Public Roads Administration is presented and analysed in the paper, as an example of an actor working on performance measurement for sustainability. The purpose is to evaluate the state of the art and use document study and literature to propose improvements. The research questions addressed in the paper are how sustainability is measured today for the construction portfolio in the Norwegian Public Road Administration and what are the pros and cons of the actual method (for measuring sustainability today). The proposal for improvements is made by comparing the state of the art with performance measurement theory. KW - Lean construction KW - sustainability KW - action research KW - performance measurement KW - and infrastructure projects. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2249/pdf L2 - http://iglc.net/Papers/Details/2249 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Comparative Analysis of Leed and Green Globes: A Case Study Approach to Environmental Performance Assessment of an Educational Campus Facility C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 954 EP - 968 PY - 2024 DO - 10.24928/2024/0129 AU - Nguyen, Tran Duong AU - Pishdad, Pardis AU - Fanijo, Ebenezer O. AD - PhD student, Georgia Institute of Technology, Atlanta, Georgia, United States, dnguyen458@gatech.edu, orcid.org/0000-0002-0024-4828 AD - Associate Professor, Georgia Institute of Technology, Atlanta, Georgia, United States, pardis.pishdad@design.gatech.edu, orcid.org/0000-0003-4208-9755 AD - Assistant Professor, Georgia Institute of Technology, Atlanta, Georgia, United States, ebenezer.fanijo@design.gatech.edu, orcid.org/0000-0001-8702-3974 AB - The construction industry faces significant challenges in reducing energy consumption and achieving sustainability goals. Green building rating systems (GBRS) have been created to assess and confirm the effectiveness of sustainable construction practices. As buildings strive to reduce energy consumption, a holistic approach to building design, construction, and operation is necessary. The study aims to explore sustainable construction practices and their sustainability in high-performance green buildings (HPGB). The Georgia Tech Life Science Building (GTLSB), designed to serve the life science community in Metro Atlanta, is the chosen case study. Our research will involve (1) examining guidelines and standards for a sustainable building, (2) understanding the use of sustainable criteria, and (3) demonstrating technical expertise. Initially, we conducted a literature review of the current state of the GBRS and analyzed project information as a case study. Our analysis showcases an in-depth understanding of the technologies, methods, and resources required to produce and operate an HPGB. Our findings contribute to the knowledge of sustainable building and provide insights into the utilization of GBRS, focusing on two widely adopted systems, LEED and Green Globes (GG). The study’s findings will help promote sustainable construction practices for professionals, policymakers, educators, and researchers and help achieve a more sustainable built environment. KW - Green building rating systems KW - LEED KW - Green Globes KW - Sustainable construction practices KW - High-Performance Green Building. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2250/pdf L2 - http://iglc.net/Papers/Details/2250 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Jet Grouting: Applying Lean Principles in Geotechnical Engineering to Reduce Waste C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 969 EP - 977 PY - 2024 DO - 10.24928/2024/0142 AU - Vauk, Björn Bernhard AU - Dalchau, Dennis AD - PhD Student, Institute for Production Technology and Systems (IPTS), Leuphana University Lüneburg, Germany, bjoern.vauk@leuphana.de, https://orcid.org/0009-0006-3464-3049 AD - PhD Candidate, Leuphana Law School (LLS), Leuphana University Lüneburg, Germany, dennis.dalchau@leuphana.de, https://orcid.org/0009-0005-8918-9253 AB - Jet grouting is a widely used method for ground improvement and for sealing measures in geotechnical engineering. Due to the nature of the process, the material consumption of water-binder suspension is high. The objective of this research is to enable a more efficient use of resources by evaluating and reducing the waste of the resources used in the jet grouting process, taking lean principles into account. The objective of this paper is to develop a production flow model for the jet grouting process. This is to enable a continuous improvement of the production processes and a reduction of the associated material consumption through recycling. A production flow model is proposed to determine the amount of binder suspension required for production as a function of production time. The model presented will be used to control and continuously improve the production process and associated use of resources in future research. This will be done in accordance with the lean principles of customer value, value stream identification, flow, pull and striving for perfection. KW - Lean and Green KW - Sustainability KW - Waste KW - Production Pull PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2251/pdf L2 - http://iglc.net/Papers/Details/2251 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Construction Supply Chain: A Transport Perspective C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 978 EP - 989 PY - 2024 DO - 10.24928/2024/0147 AU - Dhawan, Kamal AU - Tookey, John E. AU - Poshdar, Mani AD - Lecturer, Built Environment Engineering Department, Auckland University of Technology, Auckland, New Zealand, kamal.dhawan@aut.ac.nz, orcid.org/0000-0002-1852-7236 AD - Professor, School of Future Environments, Auckland University of Technology, Auckland, New Zealand, john.tookey@aut.ac.nz, orcid.org/0000-0002-9347-9078 AD - Senior Lecturer, Built Environment Engineering Department, Auckland University of Technology, Auckland, New Zealand, mani.poshdar@aut.ac.nz, orcid.org/0000-0001-9132-2985 AB - The extensive and interdisciplinary construction supply chain is susceptible to inefficiencies at the interfaces of organisations. These inefficiencies are exacerbated by intricate logistics systems that operate among numerous stakeholders and actors, involving concurrent activities, processes, and on- and off-site systems. Transportation stands out as the most significant element within construction logistics. The fragmentation of the transport function stems from its intrinsic nature to every business, typically involving externalised asset ownership and deployment. Inefficiencies infiltrate the system due to isolated planning across different segments, gradually accumulating into macro-level visibility. To optimise logistics, particularly the transport function, identified strategies involve reconfiguring activities, combining resources, and repositioning actors. This paper delves into the impact of vertically integrating distribution, implementing integrated planning for transport operations, and incorporating reverse logistics into operations on the transport function within a supply chain for manufactured construction products. The study evaluates sustainability impacts using transport efficiency metrics and domestically determined parameters to benchmark the 'leaning and greening' of the specific supply chain under consideration. KW - Construction transport KW - Construction logistics KW - Optimised transport KW - Lean construction supply chain. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2252/pdf L2 - http://iglc.net/Papers/Details/2252 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Smart Homes and Waste Reduction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 990 EP - 1002 PY - 2024 DO - 10.24928/2024/0172 AU - Awwal, Samira AU - Tzortzopoulos, Patricia AU - Gulzar, Mohammad Ruhail AU - Mishra, Rakesh AU - Fleming, Leigh AU - Conor, Scott AD - Research Assistant, Department of Engineering & Technology, School of Computing & Engineering, University of Huddersfield, Huddersfield, United Kingdom, s.awwal3@hud.ac.uk, https://orcid.org/0000-0001-7771-1511 AD - Professor, Department of Design and Built Environment, School of Arts and Humanities, University of Huddersfield, United Kingdom, p.tzortzopoulos@hud.ac.uk , https://orcid.org/0000-0002-8740-6753 AD - KTP Associate, Department of Engineering & Technology, School of Computing & Engineering, University of Huddersfield, Huddersfield, United Kingdom, m.r.gulzar@hud.ac.uk, https://orcid.org/0009-0004-1983-2250 AD - Professor, Department of Engineering & Technology, School of Computing & Engineering, University of Huddersfield, Huddersfield, United Kingdom, r.mishra@hud.ac.uk, https://orcid.org/0000-0002-1620-3238 AD - Reader, Department of Engineering & Technology, School of Computing & Engineering, University of Huddersfield, Huddersfield, United Kingdom, l.t.fleming2@hud.ac.uk, https://orcid.org/0000-0002-6962-8686 AD - Technical Director, Trust Electric Heating Ltd., Leeds, United Kingdom, scott@trustelectricheating.co.uk AB - The concept of smart homes includes smart technologies, systems, and devices to facilitate efficiency, security, comfort, and overall management of the home environment. This paper presents the concept of smart homes and discusses how it relates to waste reduction, especially energy waste. As waste reduction is one of the key lean principles, the notion of a "smart home" and " waste reduction" can be connected to optimising efficiency and increasing the functionality of the home. An experiment was carried out in the Huddersfield smart house research facility for the optimisation of energy usage through smart home technologies and efficient appliances, resulting in lifecycle waste reduction. The investigation highlights the connection between Smart Home’ and ‘Lean Waste Principles’ indicating how energy use in the building lifecycle is hidden in lean waste. This suggests a need for future empirical research to better understand how to reduce waste using smart home technology and provide solutions to resolve energy waste on a wider scale. KW - Smart Home KW - energy efficiency KW - waste reduction KW - comfort KW - lean waste PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2253/pdf L2 - http://iglc.net/Papers/Details/2253 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Integrated Framework for Production and Environmental Waste Management in Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1003 EP - 1014 PY - 2024 DO - 10.24928/2024/0183 AU - Alazmi, Saleh AU - Abdelmegid, Mohammed AU - Sarhan, Saad AU - Poshdar, Mani AU - Gonzalez, Vicente AD - PhD, Department of Civil and Environmental Engineering, The University of Auckland, New Zealand AD - Lecturer in Engineering Management, School of Civil Engineering, University of Leeds, UK, M.Abdelmegid@leeds.ac.uk, orcid.org/0000-0001-6205-570X AD - Assistant Professor in Advanced Engineering Management, Department of Civil Engineering, University of Birmingham Dubai, UAE, s.sarhan@bham.ac.uk, orcid.org/0000-0002-0105-2350 AD - Senior lecturer, Auckland University of Technology, School of Future Environments, New Zealand, mani.poshdar@aut.ac.nz, orcid.org/0000-0001-9132-2985 AD - Professor and Tier 1 Canada Research Chair in Digital Lean Construction, Department of Civil and Environmental Engineering, University of Alberta, Canada, https://orcid.org/0000-0003-3408-3863 AB - Lean construction has successfully developed and utilised several tools to minimise production waste generation in construction projects. In addition, sustainability research has contributed to improving the environmental performance of the construction industry by managing the impact of construction waste on the environment. Research on construction sustainability has been utilising some of the capabilities of lean construction tools to address environmental-related issues that are difficult to tackle using conventional approaches. Even though research in the Lean-Sustainability area has progressed over the last two decades, knowledge of Lean-Sustainability applications is still limited amongst industrial practitioners. A potential reason is the lack of an integrated approach combining lean principles and sustainability for construction applications. To address this limitation, this paper proposes a management framework that deals with both production and environmental wastes concurrently. The framework is developed by combining a lean process improvement method with an environmental management system approach. The framework is validated through interviews with experts in lean construction and sustainability to establish its theoretical contribution and practical applicability. Through this integrated waste management framework, this study contributes to the efforts of managing production and environmental wastes to deliver more efficient and environmentally friendly projects in the construction industry. KW - Sustainability KW - Lean Construction KW - Value Stream KW - Production waste KW - Environmental waste PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2254/pdf L2 - http://iglc.net/Papers/Details/2254 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Evaluating the Awareness of Designing Out Waste in Construction: A Lean–Green Synergy C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1015 EP - 1026 PY - 2024 DO - 10.24928/2024/0192 AU - Assaf, Sena AU - Ezzedine, Farah AU - Nahle, Amal AU - Zahr, Hala AU - Hamzeh, Farook AD - Ph.D. Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, sassaf1@ualberta.ca, https://orcid.org/0000-0003-3256-3310 AD - Civil Engineer, Department of Civil and Environmental Engineering, American University of Beirut, Beirut, Lebanon, farah.h.ezzedine@gmail.com, https://orcid.org/0009-0001-6668-4631 AD - Civil Engineer, Department of Civil and Environmental Engineering, American University of Beirut, Beirut, Lebanon, amal_nahle1@hotmail.com, https://orcid.org/0009-0006-2591-1873 AD - Civil Engineer, Department of Civil and Environmental Engineering, American University of Beirut, Beirut, Lebanon, Halazahr96@gmail.com, https://orcid.org/0009-0009-9122-4205 AD - Professor, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, hamzeh@ualberta.ca, https://orcid.org/0000-0002-3986-9534 AB - The construction industry generates millions of tons of material waste annually throughout a project’s life cycle. In Lebanon, one million tons of Construction and Demolition Waste were generated during the years 2009 and 2010. To support organizations in enhancing their environmental efficiency, the Green paradigm has emerged. Such a paradigm can be complemented with the Lean management approach paving the way for a Lean-Green synergy. This synergy is based on the alignment of the two approaches on the need to minimize waste, in its different forms, as well as maximize stakeholder value; the client, and the environment. As such, this paper introduces the concept of the Design out Waste (DoW) approach. This approach aims to improve the sustainability aspect of a project, throughout its lifecycle and starting from the early design phase, supported by Lean tools and principles. Specifically, the aim of this paper is to investigate the current state and examine the level of awareness of implementing DoW principles in the Lebanese construction industry through conducting surveys. The survey results showed a low level of awareness of the DoW approach among practitioners in Lebanon with little attention given to waste minimization when making decisions. KW - Lean construction KW - Green construction KW - sustainability KW - Lean-Green synergy KW - waste minimization PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2255/pdf L2 - http://iglc.net/Papers/Details/2255 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Evaluation of the Literature Syntheses on Lean Construction Contributions to Sustainability C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1027 EP - 1038 PY - 2024 DO - 10.24928/2024/0194 AU - Tetik, Müge AU - Koskela, Lauri AU - Pikas, Ergo AU - Vendel, Kädi-Riin AD - Post-Doctoral Researcher, Dept. of Industrial Engineering and Management, LUT University, Finland, muge.tetik@lut.fi, orcid.org/0000-0002-4013-0577 AD - Adjunct Professor, Dept. of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, lauri.koskela@taltech.ee, orcid.org/0000-0003-2769-0243 AD - Assistant Professor, Dept. of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, ergo.pikas@taltech.ee, orcid.org/0000-0001-5691-685X AD - Project Expert, Dept. of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, kadiriin.vendel@taltech.ee, orcid.org/0009-0004-1702-1817 AB - In the last ten years, the interest in the question on how lean construction could contribute to sustainability has considerably increased. This is reflected in the rapidly growing number of publications addressing this question. Especially systematic literature reviews have been popular. In this explorative paper, such reviews are critically evaluated. A synthesis of findings about the conceptual framework of the relation between lean and sustainability is provided. Based on the findings, we determine the missing topics in the available literature reviews. For example, target value design and takt production have not been gaining attention on reviews focusing on lean and sustainability relationship compared to other lean methods. We present suggestions for future research as well as a conceptual framework for contributions of lean construction on sustainability. KW - Lean construction KW - sustainability KW - critical evaluation KW - target value design. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2256/pdf L2 - http://iglc.net/Papers/Details/2256 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Coupling Demand Response and PDCA to Lean Building Operations: A Proof-of-Concept C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1039 EP - 1050 PY - 2024 DO - 10.24928/2024/0199 AU - Shaibh, Abdulmhseen AU - Parrish, Kristen AD - Graduate Student, School of Sustainable Engineering and the Built Environment, Arizona State University, ashaibh@asu.edu AD - Associate Professor, School of Sustainable Engineering and the Built Environment, Arizona State University, Kristen.Parrish@asu.edu AB - The Plan-Do-Check-Act (PDCA) approach allows stakeholders to identify potential changes and measure their impacts on a small scale prior to making a larger investment in such a change. One change that could be evaluated through PDCA is the installation or implementation of energy efficiency measures (EEMs). Building owners may be reticent to implement energy efficiency measures (EEMs) without fully understanding their costs and benefits. A PDCA approach coupled with demand response (DR) – whereby building owners reduce electricity consumption during periods of peak electricity demand in exchange for incentive payments – allows owners to assess EEM performance in a pilot study prior to making a larger investment in the EEM. Various EEMs can help building owners and operators shift their energy consumption to off-peak hours to earn DR incentives, e.g., reducing lighting power via controls, precooling a building prior to the peak hours. This paper documents how one building owner, Arizona State University, leveraged PDCA to identify DR strategies for a campus building and then used results from the DR event to identify permanent EEMs for the building. This case study serves as a proof of concept that indicates that a PDCA approach that leverages DR implementation supports identification of EEMs for permanent installation. KW - PDCA KW - energy management KW - lean operations. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2257/pdf L2 - http://iglc.net/Papers/Details/2257 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Insights on Sustainability in Industrialized Construction in Europe and the United States C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1051 EP - 1062 PY - 2024 DO - 10.24928/2024/0224 AU - Scagliotti, Giulia AU - Lessing, Jerker AU - Fischer, Martin AD - PhD Candidate, Civil and Environmental Engineering Department, Stanford University, Stanford, USA, gscaglio@stanford.edu, orcid.org/0009-0006-8318-3982. AD - Adjunct Professor, Civil and Environmental Engineering Department, Stanford University, Stanford, USA, jlessing@stanford.edu. AD - Professor, Civil and Environmental Engineering Department, Stanford University, Stanford, USA, fischer@stanford.edu. AB - Embracing lean philosophy, which emphasizes waste reduction and resource efficiency, is a pre-condition to improving the environmental impact of a building but is not sufficient to produce a sustainable building. To increase the environmental sustainability of their products, industrialized construction (IC) companies need to understand the constraints of the location where they operate, and best practices applied by leading IC companies. To delve into constraints and best practices, we interviewed sustainability leaders of six IC companies at the forefront of sustainability practices in Europe and the United States. The purpose of each interview was to highlight the challenges and opportunities caused by external factors that companies are experiencing, and the advancements that other companies could replicate. Based on comparative analysis, our results show stricter sustainability regulations and a collaborative stakeholders’ network with similar sustainability goals in Europe compared to the US. These factors seem to favor 1) a careful evaluation of tradeoffs when considering technical solutions; 2) the adoption of disassembly, adaptability, and circularity principles; 3) the development of new business models; and 4) companies developing new rating systems to capture their advanced product sustainability. Our results can inform lagging IC companies to adopt the most advanced sustainability practices. KW - Lean Construction KW - Lean and Green KW - Sustainability KW - Industrialized Construction KW - Off-site Construction PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2258/pdf L2 - http://iglc.net/Papers/Details/2258 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Carbon Emissions of Construction Operations in a Cold Climate C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1063 EP - 1073 PY - 2024 DO - 10.24928/2024/0228 AU - Pikas, Ergo AU - Lõhmus, Rauno AU - Koskela, Lauri AU - Tetik, Müge AU - Vendel, Kädi-Riin AD - Assistant Professor, Department of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, ergo.pikas@taltech.ee, orcid.org/0000-0001-5691-685X. AD - Project Manager, Maru Ehitus AS, Tallinn, Estonia. AD - Adjunct Professor, Department of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, lauri.koskela@taltech.ee, orcid.org/0000-0003-4449-2281. AD - Post-Doctoral Researcher, LUT School of Engineering Sciences, muge.tetik@lut.fi, orcid.org/0000-0002-4013-0577. AD - Project Expert, Department of Civil Engineering and Architecture, Tallinn University of Technology, Estonia, kadiriin.vendel@taltech.ee, orcid.org/0009-0004-1702-1817. AB - This study focuses on the energy use of construction operations and explores the associated greenhouse gas (GHG) emissions. The case study methodology is used in this exploratory investigation to assess the energy consumption and GHG of eight construction projects in Estonia. The findings highlight the need to account for heating and illumination emissions, underlining the importance of including construction phase emissions in building lifecycle carbon assessments. No strong correlation between building size and energy consumption is found, but there seems to be a connection between project duration, use function, and emissions. It suggests that addressing the embodied carbon of construction operations, particularly when heating is required, is crucial for reducing the overall carbon footprint. This study develops and invites the lean community to establish a baseline for construction operations' energy use and related GHG emissions. A baseline is needed to facilitate the continuous improvement of construction processes from the sustainability viewpoint. KW - Sustainable construction KW - energy consumption of construction operations KW - greenhouse gas emissions KW - winter heating and illumination. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2259/pdf L2 - http://iglc.net/Papers/Details/2259 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Assessing Environmental Impacts: A Case Study of Circular Economy on Construction Materials C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1074 EP - 1085 PY - 2024 DO - 10.24928/2024/0230 AU - Diaz, Michelle AU - Neyra, Mauricio AU - Gomez, Sulyn AD - Student, School of Environmental Engineering, National University of Engineering, Lima, Peru, mndiazv@uni.pe, orcid.org/0000-0002-7711-1695 AD - Graduate Student, School of Civil Engineering, National University of Engineering, Lima, Peru, mauricio.neyra.p@uni.pe, orcid.org/0009-0007-7379-5798 AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AB - The construction sector is a major contributor to environmental degradation, accounting for a significant portion of global energy-related carbon dioxide emissions. The traditional linear construction practices follow a “take-make-dispose” model, which entail the extraction of raw materials, manufacturing of construction products, their use in building projects, and ultimately the disposal of waste generated throughout construction projects. Both Lean and Circular Economy (CE) are philosophies that seek to minimize waste. While Lean promotes value through the reduction of production waste during design and construction, CE proposes the reduction of material waste by promoting closed-loop material flows throughout the construction lifecycle. Applying Lean and CE principles to construction waste management shows promise in reducing negative environmental impacts. Despite increasing interest, a comprehensive assessment of CE’s impact in this context has not been thoroughly presented yet. This study aims to close this gap by analyzing the environmental performance within a case adopting CE principles using Life Cycle Assessment information. Results indicate significant reductions in Global Warming and Ecotoxicity using CE. Meanwhile, Lean provides another approach to waste reduction by avoiding the generation of environmental waste through production control. This research underscores CE’s efficacy in mitigating negative environmental impacts while identifying areas for further optimization. KW - Lean KW - Circular Economy KW - Life Cycle Assessment KW - Environmental Impact KW - Waste. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2260/pdf L2 - http://iglc.net/Papers/Details/2260 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Transition to a Lean Mindset Through the “Hero’s Journey” C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1086 EP - 1098 PY - 2024 DO - 10.24928/2024/0105 AU - Malvik, Tobias O. AU - Engebø, Atle AD - PhD Candidate, Civil and Environmental Engineering Department, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, tobias.o.malvik@ntnu.no, https://orcid.org/0000-0002-7588-1899 AD - Researcher, PhD, Norwegian University of Science and Technology (NTNU), Trondheim, Norway, +47 905 71 902, atle.engebo@ntnu.no, orcid.org/0000-0002-5293-0176 AB - Transitioning from a conventional, established, and familiar project mindset to a Lean mindset has proved challenging and is a barrier to implementing Lean Construction. It has been argued that shifting from traditional management thinking to a Lean mindset can be considered a paradigm shift. Such substantial changes will require overcoming innate resistance and adjusting ingrained habits to become progressive and open-minded to the potential benefits of new ideas. This conceptual paper investigates how the potentially demanding change from a traditional mindset to a Lean mindset can be dealt with by employing Joseph Campbell’s “Hero’s Journey” framework. The Hero’s Journey describes a generic journey about overcoming challenges met when facing unfamiliar territory. It is found in antique stories but is also applicable in life. A way to tackle the challenging task of adjusting to the ongoing change in the construction industry using the Hero’s Journey is proposed in this paper. The research shows that applying the Hero’s Journey framework in a construction context can be valuable for making the transition to a Lean mindset less daunting for practitioners. KW - Lean construction KW - Hero’s journey KW - Collaboration KW - Storytelling KW - Change PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2261/pdf L2 - http://iglc.net/Papers/Details/2261 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Magical vs Methodical: Choosing by Advantages as Antidote to the Planning Fallacy C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1099 EP - 1110 PY - 2024 DO - 10.24928/2024/0115 AU - Haronian, Eran AU - Korb, Samuel AD - Lecturer, Department of Civil Engineering, Ariel University, Ariel, 40700, Israel, eranha@ariel.ac.il AD - PhD, Graduate of the Faculty of Civil and Environmental Engineering, Technion - Israel Institute of Technology, Haifa, Israel, m1uwv6junqzd@opayq.com AB - Cost and schedule overruns are the bane of construction projects, in part due to overly optimistic predictions of project progression. This “optimism bias” is called the planning fallacy, a form of “magical thinking” where planners convince themselves that their project will be different (and better) than others. “Choosing by Advantages” (CBA) is a methodical approach for decision-making. By engaging “slow thinking” at the organizational level, CBA can help counteract the tendency to default to best-case scenarios when selecting among designs and production methods, even in the middle of a project. In this paper, a case study of a Pumped Hydroelectric Energy Storage facility that had to choose between a bottom-up raise boring and a top-down shaft sinking construction method for the vertical shaft connecting the reservoirs is presented. The paper then examines how CBA helped shift the thinking of the project team away from fallacious planning and overcome the sunk-cost fallacy. KW - Choosing by Advantages KW - Optimism Bias KW - Planning Fallacy KW - Risk Management KW - Monte Carlo PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2262/pdf L2 - http://iglc.net/Papers/Details/2262 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Exploration of Psychological Safety and Team Behaviors in a Construction Global Team C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1111 EP - 1122 PY - 2024 DO - 10.24928/2024/0130 AU - Villanueva, Sulyn Gomez AU - Ballard, Glenn AU - Terni, Stephen AU - Arroyo, Paz AU - Bello, Kevin AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AD - Research Associate, Project Production Systems Laboratory (P2SL), University of California, Berkeley, USA, gballard@berkeley.edu, orcid.org/0000-0002-0948-8861 AD - Quality National Leader, DPR Construction, Pasadena, USA, stephent@dpr.com, orcid.org/0009-0008-1217-2842 AD - Quality Leader, DPR Construction, San Francisco, USA, paza@dpr.com, orcid.org/0000-0002-8098-8172 AD - Principal Researcher, The University of Chicago, USA, bellok@uchicago.edu, orcid.org/0000-0002-3661-8158 AB - Psychological safety is a construct that has garnered attention in academia and industries over the last two decades. Research has shown the connection between psychological safety and several team behaviors, from learning to active caring. Most research however has focused on exploring psychological safety within traditional teams. This paper extends the research on psychological safety by capturing the psychological safety and behavioral dynamics of a global virtual corporate team in the construction industry. We found that psychological safety positively relates to some behaviors such as making reliable promises and active listening, and these in turn positively relate to better team performance. This paper also describes actions the team in the study committed to follow to improve, based on the assessment conducted in this study. Future research should concentrate on using longitudinal assessments to explore variations within the team over time and understand what interventions can improve team dynamics. KW - Psychological safety KW - behaviors KW - team dynamics KW - global teams KW - learning KW - reliable promising PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2263/pdf L2 - http://iglc.net/Papers/Details/2263 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An Investigation of Psychological Safety in Construction Projects and Its Influence on Team Learning Behaviour: A Survey-Based Study C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1123 EP - 1134 PY - 2024 DO - 10.24928/2024/0150 AU - Häringer, Selina AU - Gomez, Sulyn AU - Schöttle, Annett AD - MSc Business and Organizational Psychology, University of Westminster, London, DE, shaeringer@web.de, orcid.org/0009-0000-3276-4767 AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AD - Dr.-Ing., CBA and Lean Expert, Founder and Co-Director at CollabDecisions, annett.schoettle@web.de, orcid.org/0000-0001-6001-7320 AB - Due to a construction project's dynamic, interdependent, and complex environment, it is crucial that team members are able to talk openly about risks, mistakes, ideas and best practices without fearing interpersonal risks such as punishment or dismissal. Sharing knowledge is especially critical as team structures change over a project. Therefore, psychological safety is an essential key enabler in such project environments. This paper is built upon a cross-sectional survey-based study (N=163) used to assess the current level of psychological safety within teams of the Owner, Architect, Engineering, and Construction (OAEC) industry based on the views of individuals in different teams. Furthermore, the study aimed to identify factors that can enhance psychological safety in construction project teams. These include, for example, a good failure culture, communication, and a mindset toward collaboration. The results show a strong positive relationship between psychological safety and team learning behavior, with psychological safety as a predictor explaining 50% of the variance in team learning behavior. KW - Construction project teams KW - psychological safety KW - team learning behaviour. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2264/pdf L2 - http://iglc.net/Papers/Details/2264 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Right Kind of Wrong in Construction: Analysis From a General Contractor Perspective C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1135 EP - 1146 PY - 2024 DO - 10.24928/2024/0153 AU - Arroyo, Paz AU - Villanueva, Sulyn Gomez AD - Quality Leader, DPR Construction, San Francisco, USA, paza@dpr.com, and co-founder CollabDecisions, orcid.org/0000-0002-8098-8172 AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AB - The idea that not every mistake is preventable and that we can make mistakes and not be ashamed of them if we learn from them is not new in Lean Construction; however, new research from the field of psychology sheds light on human behavior and our willingness to explore and learn from failure. This paper explores how these new findings apply to construction. In this paper, we study different types of failure using Edmonson’s classifications of basic, complex, and intelligent failure. We illustrate with cases of failure collected in the Building Quality Builders Class, which is an internal training provided by a general contractor in the USA. Finally, we present strategies for preventing basic and complex failures and encouraging intelligent failures in the context of construction projects. More research is needed to develop a culture to foster learning from all types of failure. KW - Failures KW - psychological safety KW - continuous improvement KW - quality KW - and learning. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2265/pdf L2 - http://iglc.net/Papers/Details/2265 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Fuzzy Expert System for Measuring the Degree of Lean Implementation in Construction Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1147 EP - 1158 PY - 2024 DO - 10.24928/2024/0159 AU - Ead, Rana AU - Liu, Kexin AU - Saleh, Amira AU - Assaf, Sena AU - Gonzalez-Moret, Vicente AU - Hamzeh, Farook AD - Ph.D. Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, rsead@ualberta.ca, https://orcid.org/0000-0001-9377-2138 AD - Ph.D. Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, kexin10@ualberta.ca, https://orcid.org/0000-0002-1262-1440 AD - Ph.D. Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, asaleh2@ualberta.ca, https://orcid.org/0000-0002-3835-3931 AD - Ph.D. Student, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, sassaf1@ualberta.ca, https://orcid.org/0000-0003-3256-3310 AD - Professor and Tier 1 Canada Research Chair in Digital Lean Construction, Infrastructure Human Tech Lab, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, vagonzal@ualberta.ca, https://orcid.org/0000-0003-3408-3863 AD - Professor, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada, hamzeh@ualberta.ca, https://orcid.org/0000-0002-3986-9534 AB - Lean construction has emerged as a production management philosophy that can achieve significant performance improvements within the construction industry. However, the industry has not yet achieved full potential in terms of the implementation of Lean principles as compared to other industries. Such achievement necessitates continuous improvements throughout the project lifecycle. However, it is first necessary to understand the current level of Lean implementation to identify opportunities for improvement. Previous researchers have developed frameworks for measuring the degree of Lean implementation of an organization as a means to assess continuous improvements. However, being on the organizational level, these frameworks might not provide the means for assessing the incremental improvements toward transforming into a “Lean” construction company. There is a need to gauge the level of lean implementation at the project level, serving as a crucial stepping stone for overall organizational achievement. Accordingly, this study aims to develop a framework for measuring the degree of Lean implementation in a construction project using fuzzy expert systems (FES). This system provides decision-makers with an evaluation of the current implementation of Lean in construction which, in turn, provides a direction on further opportunities for improvement. KW - Lean construction KW - Lean implementation KW - fuzzy expert systems (FES). PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2266/pdf L2 - http://iglc.net/Papers/Details/2266 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Towards Sustainable Lean Construction in Indonesian Contractor: Effort & Learning From Ptpp (a Government-Controlled Construction & Investment Company) C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1159 EP - 1169 PY - 2024 DO - 10.24928/2024/0169 AU - Aisyah, Rina Asri AU - Putra, Prama AD - Lean Construction and Innovation Management System, Division of Strategy, Planning, and Technology, PT PP (Persero) Tbk, Jakarta, Indonesia, aisyah_rina@ptpp.co.id AD - Faculty Lecturer, Institut Teknologi Bandung, Bandung Indonesia, prama.putra@itb.ac.id, orcid.org/0000-0003-4045-9628 AB - The construction industry must adapt to contemporary challenges; there is a need to change the paradigm of the industry, including in Indonesia. Lean thinking is an example of the evolving paradigm in the construction industry, called lean construction. It emphasises maximising efficiency, minimising waste, and delivering value to the customer through collaborations, optimised workflows, and project performance enhancement. For a construction company such as PT PP (Persero) Tbk (a government-controlled construction & investment company), which have adopted the lean concept in the last five years, there is a need to create an environment that supports lean as quickly as possible. For a company that is relatively new to lean involvement and methodology, education is crucial for raising awareness and understanding of lean construction among the company members. This paper presents an exposition of effort and learning for lean transformation by using Community of Practice as a method to disseminate lean knowledge and experience and share details of the activities about programs as an action learning. The authors will share their experience and learning of making the sustainable change in the company through the lessons learned. KW - Lean Construction KW - Sustainable KW - Collaboration KW - Lean Education KW - Action Learning KW - Community of Practice PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2267/pdf L2 - http://iglc.net/Papers/Details/2267 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Collaboration Strategies for Infrastructure Projects of Germany’S Federal Waterways and Shipping Administration C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1170 EP - 1181 PY - 2024 DO - 10.24928/2024/0170 AU - Schwarzweller, Elisa AU - Haghsheno, Shervin AD - Research Associate, Department of Civil Engineering, Geo- and Environmental Sciences, Institute of Technology and Management in Construction, Karlsruhe Institute of Technology, Karlsruhe, Germany, elisa.schwarzweller@kit.edu, orcid.org/0000-0003-3926-1884 AD - Professor, Department of Civil Engineering, Geo- and Environmental Sciences, Director, Institute of Technology and Management in Construction, Karlsruhe Institute of Technology, Karlsruhe, Germany, shervin.haghsheno@kit.edu, orcid.org/0000-0002-0602-6370 AB - The improvement of collaboration in construction projects can lead to a more stable and efficient project delivery. Nevertheless, Germany’s Federal Waterways and Shipping Administration (WSV) has limited experience with strategically implementing elements to promote collaboration in construction projects. Therefore, initial steps have been taken in the WSV by identifying major infrastructure projects along Germany’s waterways to initiate the implementation of collaborative elements, such as Lean Construction methods. The aim thereby is to make experiences to improve future projects. This article describes a research project which was set up to systematically record and document experiences with collaboration elements in selected pilot projects. Also, the outcomes of an initial survey which gives insights into the pilot projects are presented. Furthermore, the results of a survey regarding experiences during the procurement phase of one chosen pilot project are presented. The results show that there is no clear definition of collaboration within construction projects in the WSV and that there is a need for further research to develop solutions and recommendations for the improvement in future projects by utilizing collaboration elements. KW - Collaboration strategies KW - infrastructure projects KW - waterway construction KW - system change. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2268/pdf L2 - http://iglc.net/Papers/Details/2268 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Driving the Momentum Towards Adopting Wearable Cognitive Assistance in Lean Construction 4.0 C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1182 EP - 1194 PY - 2024 DO - 10.24928/2024/0182 AU - Eltahan, Amira AU - Shehab, Lynn AU - Hamzeh, Farook AD - Ph.D. Student, Hole School of Construction Engineering, University of Alberta, AB, Canada AD - Ph.D. Candidate, Hole School of Construction Engineering, University of Alberta, AB, Canada AD - Professor, Hole School of Construction Engineering, University of Alberta, AB, Canada AB - Despite the transformative potential of Wearable Cognitive Assistance Devices (WCADs), their integration into the construction industry remains limited, marked by challenges such as practicality and regulatory barriers. Additionally, the increasing interest in implementing Lean principles in construction for enhanced project performance creates a potential intersection. This study aims to bridge both concepts by developing a conceptual framework for the implementation of WCADs in construction tasks within the Lean Construction 4.0 paradigm. It first explores the current state of WCAD in various industries and proposes a WCAD implementation framework for construction. The framework employs a stepwise approach, and its theoretical implementation in masonry works illustrates its adaptability to specific construction contexts. This framework's contribution lies in its potential to offer dynamic, adaptive, and personalized support, optimizing cognitive functions, and promoting safer and more productive task execution. This framework utilizes wearable sensors as one it’s data collection methods; thereafter, the integration of the data collected will then provide users with near real-time feedback to mitigate risks and enhance workers performance. As a theoretical foundation, this research paves the way for practical validation and future enhancements, aiming to enhance the construction industry's approach to worker well-being and performance. KW - Lean Construction KW - Design Science KW - Continuous Improvement KW - Wearable Cognitive Assistance. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2269/pdf L2 - http://iglc.net/Papers/Details/2269 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Impact of Lean Knowledge and Lean Operation on Construction Workers' Job Satisfaction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1195 EP - 1206 PY - 2024 DO - 10.24928/2024/0188 AU - Pérez, Cristina T. AU - Madushanka, Malik AU - Loyola, Lorenzo AU - Ergul, Melisa AU - Salling, Stephanie T. AU - Wandahl, Søren AD - Assistant Professor, Department of Civil & Architectural Engineering (DCAE), Aarhus University (AU), Denmark, cristina.toca.perez@cae.au.dk, https://orcid.org/0000-0002-4182-1492 AD - Master student, DCAE, AU, Denmark, malikmadushanka52@gmail.com, https://orcid.org/0009-0006-2562-5121 AD - Master student, DCAE, AU, Denmark, lorenzoloyola@gmail.com, https://orcid.org 0009-0005-2489-2677 AD - Master student, DCAE, AU, Denmark, melisaergul2709@gmail.com, https://orcid.org/0009-0003-3525-3040 AD - Research Assistant, DCA, AU, Denmark, stsa@cae.au.dk, https://orcid.org/0000-0001-7088-6458 AD - Professor, DCAE, AU, Denmark, swa@cae.au.dk, https://orcid.org/0000-0001-8708-6035 AB - This study is part of an ongoing research project that aims to understand workers' job satisfaction in the construction industry. For that, a survey was applied among construction workers in Denmark. This paper aims to identify the impact of Lean Construction on job satisfaction. Data from 2176 responses were analysed using framework analysis, shorting the answers into three categories: Lean knowledge; Lean application; and Lean operation, even though they declared not knowing Lean. The study investigated the impact of the different levels of Lean familiarity on job satisfaction within five aspects: Project progress; Management-employee relationship; Employee work monitoring; Workload; and Workflow. Findings indicate that only 15% of respondents have some knowledge of Lean concepts, with only 8% confirming its application. The strongest correlation (R2=0.557) was found between the Lean practice of “organization attempt to keep workers informed” and the job satisfaction factor of “manager-worker relationship”. Allowing the workers to evolve and improve presented, also, a strong correlation with job satisfaction. The study highlights that Lean practices that lead or require Respect for People are the aspects that impact the most on job satisfaction. The results emphasize that implementing Lean principles effectively matters more than merely being familiar with them. KW - Job satisfaction KW - Survey KW - Respect for people KW - Communication. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2270/pdf L2 - http://iglc.net/Papers/Details/2270 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Respect for People and Lean Construction: Good Practices, Benefits and Barriers C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1207 EP - 1218 PY - 2024 DO - 10.24928/2024/0191 AU - Erazo-Rondinel, Andrews A. AU - Rivera-Nalvarte, Coraima C. AU - Villar-Vasquez, Jesús A. AU - Melgar-Morales, Mauricio A. AU - Giménez, Zulay AD - Teaching Assistant, Professional School of Civil Engineering, Universidad Continental, Huancayo, Peru, aerazo@continental.edu.pe , orcid.org/0000-0002-5639-573X AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, coraima.rivera.n@uni.pe, orcid.org/0009-0008-3629-0288 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, jesus.villar.v@uni.pe, orcid.org/0009-0008-8461-9711 AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, mauricio.melgar.m@uni.pe, orcid.org/0009-0007-6491-4134 AD - Professor, School of Civil Construction, Pontificia Universidad Católica de Chile, Santiago, Chile, zmgimenez@ing.puc.cl, orcid.org/0000-0001-9051-1434 AB - Respect for People (RFP) is a crucial element in Lean Construction philosophy, along with continuous improvement. However, despite its importance, research on RFP is still limited. Therefore, the following article aims to identify good practices, benefits, and barriers generated by its implementation on the construction site. The research begins with a literature review, following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) criteria. Subsequently, with the list of good practices, benefits, and barriers, nine lean experts were interviewed, validating the information obtained from the literature review. This process identified eleven good practices, eleven benefits of implementing RFP in construction projects, and nine barriers. The upcoming research will serve as a valuable contribution for professionals seeking to implement good practices of RFP on the construction site and researchers aiming to delve deeper into this concept. KW - Respect for People KW - Lean Construction KW - benefits KW - barriers KW - good practices PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2271/pdf L2 - http://iglc.net/Papers/Details/2271 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Exploration of Lean Construction in Japan and Its Paradoxical Stance C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1219 EP - 1231 PY - 2024 DO - 10.24928/2024/0193 AU - Shigaki, Jeferson Shin-Iti AU - Koskela, Lauri AU - Tezel, Algan AU - Pedo, Barbara AD - Senior Researcher, Research & Development Institute, Takenaka Corporation, Inzai, Chiba, Japan, shigaki.jeferson@takenaka.co.jp, orcid.org/0000-0003-4513-6334 AD - Adjunct Professor, Building Lifecycle Research Group, Tallinn University of Technology, Tallinn, Estonia, lauri.koskela@taltech.ee, orcid.org/0000-0003-4449-2281 AD - Associate Professor, Department of Civil Engineering, University of Nottingham, Nottingham, UK, algan.tezel@nottingham.ac.uk, orcid.org/0000-0003-3903-6126 AD - Ph.D. Researcher, Innovative Design Lab (IDL), University of Huddersfield, Huddersfield, UK (Lean Manager, Arcadis UK, Manchester, UK), barbara.pedo2@hud.ac.uk, orcid.org/0000-0002-6520-0981 AB - Japanese construction, appraised for its high quality and production efficiency, holds virtues that Lean advocates have long admired in the Toyota Production System. However, Japanese building construction academia and industry organizations have remained disconnected from the mainstream IGLC community until recently. Therefore, its current state is insufficiently understood overseas. This study has employed a literature review, including resources in English and Japanese languages, and gathered first-hand testimonials to shed light on such a gap. This paper identified practices and routines from Japanese construction sites that could be incorporated into the Lean Construction repertoire, and identified points from which Japan could learn, such as the role of dynamic ecosystems in the birth and expansion of the Lean Construction movement and the presence of heavy-weight champions who nurtured conduit leaders. Japanese constructors have aspired to pull their engineering strength to the next level and combine it with innovative management practices, including incorporating good ones learned from overseas. That is where the role of Lean resides. Lean may help fill the gap of converting tacit knowledge into structured knowledge, increasing transparency, smoothing the transmission of know-how, creating more efficient project deliveries, and turning itself into a more attractive business. KW - Lean Construction KW - Japan KW - Theory KW - Toyota Production System KW - Ecosystem. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2272/pdf L2 - http://iglc.net/Papers/Details/2272 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Assessing Social, Technical, and Operational Maturity Dimensions for Digital Transformation in the Construction Phase C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1232 EP - 1243 PY - 2024 DO - 10.24928/2024/0214 AU - Fernandes, Luara L. A. AU - Hastak, Makarand AU - Costa, Dayana B. AD - PhD Candidate in Civil Engineering, Federal University of Bahia, Salvador, Brazil. Visiting Scholar, Lyles School of Civil Engineering, Purdue University, West Lafayette, United States. E-mail: luara.fernandes@gmail.com. ORCID: orcid.org/0000-0003-4041-8025. AD - Professor and Head, Division of Construction Engineering and Management, Lyles School of Civil Engineering, Purdue University, West Lafayette, United States. Email: hastak@purdue.edu. AD - Associate Professor, School of Engineering, Department of Structural and Construction Engineering, Federal University of Bahia, Salvador, Brazil. E-mail: dayanabcosta@ufba.br. ORCID: orcid.org/0000-0002-1457- 6401 AB - The importance of digital transformation (DT) has risen significantly in the past few years in several industry sectors, including construction. Some potential benefits of DT in construction include improvements in productivity, efficiency, safety, quality, and collaboration. However, fully embracing DT opportunities involves committed efforts in Key Project Areas (KPAs), and identifying these areas is still challenging. Therefore, this work aims to assess social, technical, and operational maturity dimensions for digital transformation in the construction phase. These dimensions are the KPAs construction managers should focus on throughout the construction environment DT process. A questionnaire was administered to 54 construction professionals from industry and academia. Data collected was analyzed using ranking analysis from the Relative Importance Index (RII) calculation. Results revealed that the participants did not rank technical aspects as the most significant; rather, these aspects were regarded with slightly less importance than other dimensions. The balance among social, technical, and operational factors in the ranking indicates that construction professionals recognize the insufficiency of technology implementation alone for driving significant changes; instead, human resources must lead the process improvement with the support of digital technologies. These findings align with Industry 5.0 and Lean Construction concepts, reflecting some synergies between them. KW - Digital transformation KW - Construction phase KW - Industry 5.0 KW - Lean construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2273/pdf L2 - http://iglc.net/Papers/Details/2273 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - A Critical Analysis of Choosing by Advantages Implementation in the Tendering Procedure Based on Eu Directive and German Legislation C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1244 EP - 1254 PY - 2024 DO - 10.24928/2024/0223 AU - Schöttle, Annett AU - Behme, Fabian AD - Dr.-Ing., CBA & Lean Expert, Munich, Germany, & Founder and Co-Director, CollabDecisions, annett.schoettle@web.de, orcid.org/0000-0001-6001-7320 AD - Dr., Team Lead Contract & Claims Management, Munich Main Station, DB InfraGO, Munich, Germany, Fabian.Behme@deutschebahn.com, orcid.org/0009-0000-6130-9050 AB - The Choosing by Advantages (CBA) Tabular method is a decision-making method that differentiates between alternatives based on the importance of advantages. By doing so, cost-related factors are excluded from the table to better understand the value of each alternative. After evaluating the value, the cost/price of each alternative is analyzed in relation to the value. This is a crucial rule to avoid overestimating cost/price and underestimating the value of an alternative. In the public tendering procedure, price is usually the only factor or the main factor used to decide between proposals. As other authors have already pointed out, this leads to speculative bidder behavior that might be rewarded. Using CBA requires a change in thinking, but it will be beneficial in truly understanding the differences between proposals. Therefore, this paper examines the use of CBA in the tendering procedure based on EU Directives and German legislation. It was found that it is possible to implement CBA in the current tendering procedure without violating the principles of CBA. However, the adjustment needed to apply CBA within the current regulations clearly goes against what CBA intends. Therefore, we suggest changing the current reactive tendering procedure to an active decision-making process. This paper does not provide a final answer but aims to open the discussion. KW - Choosing by Advantages (CBA) KW - legislation KW - public KW - tendering. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2274/pdf L2 - http://iglc.net/Papers/Details/2274 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - ISO 18404: A Model for Lean Transformation in an Alliance C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1255 EP - 1267 PY - 2024 DO - 10.24928/2024/0225 AU - Ebbs, Paul J. AU - Ward, Steven A. AD - Technical Director, T&I, Roads, WSP in the UK, paul.ebbs@wsp.com, orcid.org/0009-0003-5630-1726 AD - Managing Director, Lean Construct Ltd., UK, steve@leanconstruct.co.uk, orcid.org/0000-0002-5291-7246 AB - The literature and case studies reporting lean transformation in the construction/infrastructure sector are rare. This study’s objective is to examine whether the Lean Standard, ISO 18404 provides a useful model for lean transformation. By Case Study and Participatory Action Research, the deployment of ISO 18404 and certification journey of a UK highway alliance (the Alliance) is reported, structured around four Themes for lean transformation. Findings are supported by the latest literature along with a quantitative and qualitative survey with those involved in 18404 deployment (n=35/58). The survey data was thematically analysed and is largely articulated through the four Themes for lean transformation. Whilst ISO 18404 is imperfect, it remains that ISO 18404 provides a useful model for lean transformation and can assist with embedding a culture of sustainable continuous improvement in an Alliance. KW - ISO 18404 KW - Alliancing KW - Lean Transformation KW - Lean Leadership KW - Continuous Improvement PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2275/pdf L2 - http://iglc.net/Papers/Details/2275 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Institute for Lean Construction Excellence Lean Maturity Model (ILMM) – a Lean Maturity Model for Indian Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1268 EP - 1279 PY - 2024 DO - 10.24928/2024/0229 AU - Vaidyanathan, Kalyan AU - Kannimuthu, Marimuthu AU - Varghese, Koshy AD - Director, Business Development Bentley Systems India Ltd., Urban Square Building, Elango Nagar, Perungudi, Chennai, Tamil Nadu 600041, India, kalyanv71@gmail.com, orcid.org/0000-0001-7006-6329 AD - Technical Secretary, Institute of Lean Construction Excellence, SP Centre, 41/44 Minoo Desai Marg, Colaba, Mumbai 400005, India, marimuthukan@gmail.com, orcid.org/0000-0002-8158-1868 AD - Professor, Building Technology and Construction Management, Civil Engineering Department, Indian Institute of Technology, Madras, Chennai 600036, koshy@iitm.ac.in, orcid.org/0000-0001-7457-9578 AB - In the construction industry, sustained implementation of lean practices is vital for enhancing efficiency and outcomes for projects and organisations. Having a maturity model is one way to assess sustained implementation. This paper identifies the need and describes a comprehensive maturity model framework to gauge and improve project and organisational lean maturity in the Indian construction context – Institute for Lean Construction Excellence Lean Maturity Model (ILMM). The model introduces a distinctive 4x3 matrix, with four levels – Bronze, Silver, Gold, and Platinum – each further divided into three sublevels – Low, Medium, and High. The assessment is done on five dimensions – top management support, process, people & partners, methods & tools, and technology. Field data collection has been done on two projects to see if data on the proposed assessment dimensions can be gathered and an appropriate rating provided to the project along with guidelines on how to improve the maturity. This research advances lean construction practices by providing a practical framework for continuous improvement and organisational excellence tailored to local construction contexts. In the next phase, the authors plan to do a more elaborate assessment across a broader range of projects and modify the ILMM framework as needed based on their experience. KW - Lean Construction KW - Lean Maturity Model KW - Lean Culture KW - Continuous Improvement KW - Assessment Framework. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2276/pdf L2 - http://iglc.net/Papers/Details/2276 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Construction 4.0 and Society 5.0, How Close Are They? C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1280 EP - 1292 PY - 2024 DO - 10.24928/2024/0237 AU - Forcael, Eric AD - Professor, College of Engineering, Architecture and Design, Universidad San Sebastián, Concepción, Chile, eric.forcael@uss.cl, orcid.org/0000-0002-3036-4329 AB - The rapid advent of technological progress has triggered many industries to modify how they perform their tasks. The construction industry has not been immune to this reality. In this sense, Lean Construction 4.0 was recently born from the fusion of Lean principles and Construction 4.0. Similarly, concepts such as Industry 5.0 and Society 5.0 have also emerged in recent years, intending to put human beings at the center of companies’ work. Thus, this article addresses how close Lean Construction 4.0 and Society 5.0 are. After analyzing both approaches, it is feasible to say that the relationship between both views is sensitively close, specifically under a human-centered approach and, therefore, it cannot be ignored as a process that also deals with the transformation of society through technology. KW - Lean Construction 4.0 KW - Society 5.0 KW - Human-centered approach KW - People-Process-Technology. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2277/pdf L2 - http://iglc.net/Papers/Details/2277 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Construction Enterprise Management: The Value and Potential of the Merit Game Simulation C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1293 EP - 1302 PY - 2024 DO - 10.24928/2024/0102 AU - Stevens, Matt AU - Poshdar, Mani AD - Senior Lecturer, School of Engineering, Design, and Built Environment. Western Sydney University, Kingswood, New South Wales, Australia. Matt.Stevens@westernsydney.edu.au, orcid.org/0000-0003-2301-1311 AD - Senior Lecturer, Programme Director Built Environment AE/CE/BEngTech (BConstruction) School of Future Environments. The University of Auckland, Auckland, New Zealand, mani.poshdar@aut.ac.nz orcid.org/0000-0001-9132-2985 AB - A Lean Enterprise Construction-aligned learning game is an opportunity to meet the industry’s needs and wants. Competitive Simulation can offer such an alignment by using an online system as a medium to instruct. Learning three critical components: vocabulary, concepts, and processes, as well as game-based learning, allows students to acquire knowledge and skills through an interactive and entertaining learning experience to achieve the purpose of real-time teaching. As a result, many educators have adopted gamification in various disciplines in the tertiary sector to enhance learning and teaching. This paper will discuss applying the MERIT game to Lean Construction Learning through a case study within a leading Australian university. The case study incorporates the Merit Game and relevant organisational management content into an undergraduate construction management program. Its focus is Lean Enterprise principles and concepts. Overall, students reported a positive learning experience with higher-order learning outcomes while identifying good practices incorporated into future delivery programs. The case study findings will inform academics and training professionals about the potential of the MERIT game, if tailored, for teaching Lean Construction at the enterprise level. KW - Gamification KW - Online Simulation KW - Project Management KW - Construction Portfolio Management PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2278/pdf L2 - http://iglc.net/Papers/Details/2278 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Repair-Co Game: A Roadmap to Demonstrate the Importance of Problem-Solving Capabilities of Lean Tools C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1303 EP - 1313 PY - 2024 DO - 10.24928/2024/0211 AU - Prabaharan, Ragavi AU - Devkar, Ganesh AU - Rybkowski, Zofia K. AU - Kannimuthu, Marimuthu AD - Senior Research Associate, Department of Research and Development, URC Construction (P) Ltd, India, +919788933592, ragavi.prabaharan@urcc.in, orcid.org/0000-0002-2901-7047 AD - Sr. Associate Professor, Faculty of Technology, CEPT University, Ahmedabad – 380009, India +919099010303, ganesh.devkar@cept.ac.in, orcid.org/0000-0002-5482-122 AD - Associate Professor, Department of Construction Science, Texas A&M University, College Station, TX, USA, o: (979) 845-4354, zrybkowski@tamu.edu, orcid.org/0000-0002-0683-5004 AD - 4Technical Secretary, Institute for Lean Construction Excellence (ILCE), India, +9173050 40838, technical.Secretary1@ilce.in, orcid.org/0000-0002-8158-1868 AB - Lean Construction facilitators use the Repair-Co Game to introduce new stakeholders to the need for Lean. The game heightens participant awareness of the futility of impulsive finger-pointing to individual workers when an existing management system may instead be principally responsible for a company’s inability to reach its expressed goals. Although this current gaming approach has been shown to be effective, the authors of this paper observed that the Repair-Co Game can also be expanded to introduce players to the usefulness of Lean tools that can identify root causes and effective countermeasures. These tools include the Ishikawa Fishbone Diagram, Pareto Chart, 5 Whys Root Cause Analysis, Big Room Meetings, and Collective Kaizen, which are implemented during Big Room meetings. This expanded version of the Repair-Co Simulation has been tested with 35 graduate students at Texas A&M University, 45 students at CEPT University, and 33 members of the URC construction company. Despite the different locations of the test grounds and make-up of players, results from initial experimental sessions have been shown to be remarkably similar in some ways but also different in others, demonstrating the important nuances of an individual context. Qualitative feedback from participants demonstrate the potential of the game in helping participants solve problems at their root cause. KW - Lean Simulations KW - Repair-Co Game KW - Ishikawa Fishbone (Cause-and-Effect) Diagram KW - Pareto Chart KW - 5-Whys Root Cause Analysis KW - Continuous Improvement (PDCA). PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2279/pdf L2 - http://iglc.net/Papers/Details/2279 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Designing an Effective Training Program for Systematic Lean Construction Implementation C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 1314 EP - 1323 PY - 2024 DO - 10.24928/2024/0234 AU - Martinez, Eder AU - Pfister, Louis AU - Alarcón, Luis F. AD - Professor, School of Architecture, Civil Engineering and Geomatics, University of Applied Sciences and Arts Northwestern Switzerland (FHNW), Hofackerstrasse 30, 4132 Muttenz, Switzerland, eder.martinez@fhnw.ch, orcid.org/0000-0001-7918-9421 AD - Head of Lean Construction Division Civil Engineering, Implenia AG, Thurgauerstrasse 101A, Glattpark (Opfikon) 8152, Switzerland AD - Professor, Dept. of Construction Engineering and Management, Pontificia Universidad Católica de Chile, lalarcon@ing.puc.cl, orcid.org/0000-0002-9277-2272 AB - Training and education stand out as pivotal factors for the successful implementation of lean construction. Despite their critical role, current literature lacks comprehensive guidance on the development and implementation of lean training programs within the context of construction organizations. This paper aims to addresses this gap by presenting the case study of a multinational construction service provider developing and implementing a training program aimed at fostering a broader and sustainable integration of lean construction practices within the organization. The analysis includes the insights and perspectives of 95 trainees, gathered through an electronic survey. The results show a positive evaluation of different components of the program after 2 years of implementation. The case study emphasizes the significance of a collaborative approach to find an adequate balance of standardization and flexibility required to effectively deploy a unified training program across diverse local contexts and construction operations within the organization. The valuable insights derived from this case study serve as a resource for both researchers and practitioners, providing practical guidance for those looking to implement training programs. Furthermore, it supports in identifying best practices and potential pitfalls that warrant careful consideration in similar initiatives. KW - Lean construction KW - Training KW - Education program. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2280/pdf L2 - http://iglc.net/Papers/Details/2280 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Application of the Work Density Method to in-Situ Pile Production in Heavy Civil Engineering C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 261 EP - 272 PY - 2024 DO - 10.24928/2024/0103 AU - Fischer, Anne AU - Baumgartner, Philipp AU - Tommelein, Iris D. AU - Nübel, Konrad AU - Fottner, Johannes AD - PhD Student, Chair of Materials Handling, Material Flow, Logistics, TUM School of Engrg. and Design., Techn. Univ. of Munich, Germany, +49 89 289 15932, anne.fischer@tum.de, orcid.org/0000-0002-2106-3735 AD - Graduate Student, Chair of Materials Handling, Material Flow, Logistics, Dept. of Mech. Engrg., Techn. Univ. of Munich, Germany, philipp.baumgartner@tum.de AD - Distinguished Professor, Civil and Envir. Engrg. Dept., Director, Project Production Systems Laboratory (P2SL), University of California, Berkeley, CA 94720-1712, USA, +1 510 643-8678, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 AD - Professor, Chair of Construction Process Management, TUM School of Engrg. and Design, Techn. Univ. of Munich, Germany, +49 89 289 22410, konrad.nuebel@tum.de, orcid.org/0000-0002-2863-1360 AD - Professor, Chair of Materials Handling, Material Flow, Logistics, Dept. of Mech. Engrg., Techn. Univ. of Munich, Germany, +49 89 289 15918, j.fottner@tum.de, orcid.org/0000-0001-6392-0371 AB - The Work Density Method (WDM) is used in takt planning for defining zones with equal workload. To date, this method has been applied mainly to building construction. This paper investigates the WDM’s applicability to equipment-driven processes in heavy civil engineering, specifically to the in-situ production of foundation piles for a highway infrastructure project. Two existing computer-based programs that support the application of the WDM, WoLZo and ViWoLZo, were used to find a suitable grid size based on data from a real-world project. The results show the potential of using the WDM (1) to define zones with equal workloads, given that pile groups are irregularly distributed over the construction site space, (2) to compare different scenarios based on work density as a metric (e.g., scenarios with different uses and sequencing of equipment), and (3) to derive a takt time and process duration when using multiple pieces of equipment that must coordinate their efforts and work in sync. Compared to the building construction application, the heavy civil engineering application reveals new requirements when using the WDM and takt planning in general, regarding the geometrical and logistical needs of equipment-driven operations that constrain how zones can be defined. KW - Production system design KW - takt planning (TP) KW - Work Density Method (WDM) KW - heavy civil engineering KW - work structuring KW - workload leveling KW - foundation piles KW - infrastructure project. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2281/pdf L2 - http://iglc.net/Papers/Details/2281 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Improving Reasons for Non-Compliance Documentation Using UAV on Construction Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 273 EP - 282 PY - 2024 DO - 10.24928/2024/0106 AU - Toledo, Mauricio J. AU - Sánchez, Brian E. AD - Assistant Professor, Head of Civil Engineering Department, Universidad Andres Bello, Chile, mauricio.toledo@unab.cl, orcid.org/ 0000-0002-3903-7260 AD - Student, Civil Engineering Department, Universidad Andres Bello, Chile, b.snchezramos@uandresbello.edu AB - Most Last Planner System® (LPS) research focused on finding the Reasons for Non-Compliance (RNC) and their origins come from indirect means such as perception surveys, therefore, registered RNC are based on opinions and not facts. This situation causes an incorrect categorization of RNC, and consequently, these RNC remain unsolved and they would probably happen again. The aim of this research is to create a formal registry of RNC on construction building projects during rough works for improving RNC documentation, using photos taken by an unmanned aerial vehicle (UAV). We performed 3 case studies: one using a traditional planning method, and two other projects using partial LPS implementation. We took aerial photos with the UAV to register unfulfilled Work Commitments (WC), their RNC and to propose a Corrective Action (CA) that would solve the RNC. This registry is supported by analyzing the RNC with an Ishikawa Diagram and using the 5 Why 2 How method (5W2H) to systematically propose a CA. We documented all this information in a “RNC Form” for each RNC detected. We took photos once a week for the project with a traditional planning method and twice a week for the projects with partial LPS implementation. We created 22 RNC Forms, which we shared with the project team professionals to receive feedback. The results are a methodology that accounts for a standardized process on how to carry out the UAV flights, photo taking and subsequently, how to document the RNC creating a RNC Form. This shows a more objective and visual record of the RNC, from which a process of continuous improvement is encouraged, by proposing a CA that solves the identified problem. The methodology and the RNC Form were validated with surveys on a Likert scale, from 1 (strongly disagree) to 4 (strongly agree). We interviewed 7 construction field professionals from the three projects. The composition of the RNC Form and the future use of the proposed methodology reached a score of 4.0 and 3.9 respectively; therefore, they were highly valued by the field professionals. KW - Reasons for non-compliance KW - RNC KW - UAV KW - LPS KW - corrective action. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2282/pdf L2 - http://iglc.net/Papers/Details/2282 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Quantitative Indicators in Takt Production Control: An Empirical Analysis C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 283 EP - 293 PY - 2024 DO - 10.24928/2024/0107 AU - Riekki, Jaakko AU - Seppänen, Olli AU - Lehtovaara, Joonas AU - Peltokorpi, Antti AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, jaakko.riekki@aalto.fi, orcid.org/0000-0002-0306-2165 AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi, orcid.org/0000-0002-2008-5924 AD - Development Manager, A-insinöörit Construction Management joonas.lehtovaara@ains.fi, orcid.org/0000-0002-4761-3811 AD - Assistant Professor, Department of Civil Engineering, Aalto University, Finland, antti.peltokorpi@aalto.fi:, orcid.org/0000-0002-7939-6612 AB - Takt production has improved lead times and stability of lean construction projects. There are several studies about takt planning but research on takt control is scant. Although some quantitative indicators have been proposed for assessing how well sites are able to follow the plan, there are no studies which have used these indicators on real projects on a work package and daily level of detail. This paper investigates through a case example how previously proposed quantitative indicators of takt control work on a detailed level. We also discuss how the indicators can be interpreted for understanding plan adherence, control actions, and improvement opportunities. Studying takt control aims to learn why and how production deviates from the plan and how management should act to get the intended production realized. Quantitative analysis with progress data and indicators calculated from them can be used to measure deviation from the plan and the performance of the production system. This paper shows how takt control can be analyzed with flow efficiency and punctuality indicators. Indicators reveal improvement opportunities in outlier trades and takt areas in flow efficiency, the relationship of product and operations flow and go-back work areas. KW - Takt production KW - production control KW - quantitative indicators KW - progress tracking KW - improvement PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2283/pdf L2 - http://iglc.net/Papers/Details/2283 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Revisiting the Takt Maturity Model After Three International Takt Forums C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 294 EP - 304 PY - 2024 DO - 10.24928/2024/0108 AU - Riekki, Jaakko AU - Lehtovaara, Joonas AU - Tommelein, Iris D. AU - Seppänen, Olli AU - Heinonen, Aleksi AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, jaakko.riekki@aalto.fi, orcid.org/0000-0002-0306-2165 AD - Development Manager, A-Insinöörit Construction Management, joonas.lehtovaara@ains.fi, orcid.org/0000-0002-4761-3811 AD - Distinguished Professor, Civil and Environmental Engineering Department, Director, Project Production Systems Laboratory, University of California, Berkeley, USA, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi, orcid.org/0000-0002-2008-5924 AD - Consultant, Vison, aleksi.heinonen@vison.fi, orcid.org/0000-0003-2027-9646 AB - Takt production has gained wide interest as a change agent for systemic change in recent years. A maturity model for the adoption of takt production based on and validated with Finnish case projects was published in 2020. However, that maturity model has not been validated internationally and companies have continued their development of takt-based operations. In this paper, we suggest updates of the maturity model by reviewing the best practices presented in three international takt forums. We also validate the model using international case projects presented in the takt forums. Industry participants have taken routes to takt production implementation other than those assumed in the initial model. Some have advanced to levels that were not included in the original model. Our suggestions consist of adding four new requirements and modifying the descriptions of eight existing requirements. A modification to the description of one of the levels in the model and the model itself are also suggested. The contribution to knowledge is a new maturity model to use for benchmarking and as a roadmap for improvement of takt production. KW - Takt production KW - maturity model KW - takt forum KW - driving change PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2284/pdf L2 - http://iglc.net/Papers/Details/2284 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Implementing Digital Visual Management: A Case Study on Challenges and Barriers C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 305 EP - 315 PY - 2024 DO - 10.24928/2024/0112 AU - Reinbold, Ana AU - Lappalainen, Eelon AU - Uusitalo, Petri AU - Seppänen, Olli AU - Peltokorpi, Antti AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, ana.reinbold@aalto.fi, orcid.org/0002-7774-7984 AD - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, eelon.lappalainen@aalto.fi, orcid.org/0000-0002-7573-344X AD - Postdoctoral Researcher, Department of Civil Engineering, Aalto University, Finland, petri.uusitalo@aalto.fi, orcid.org/0000-0002-5725-906X AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi, orcid.org/0000-0002-2008-5924 AD - Associate Professor, Department of Civil Engineering, Aalto University, Finland, antti.peltokorpi@aalto.fi, orcid.org/0000-0002-7939-6612 AB - The construction industry (CI) has an increasing interest in achieving better situational awareness (SA) in complex projects, by focusing on sharing real-time information among project participants, allowing decision-making based on the project development’s up-to-date situation and status. The implementation of digital visual management (DVM) tools as means of communication to increase SA in CI projects has the potential to simplify information dissemination. This paper identifies the challenges and barriers faced during the implementation of a DVM tool. The authors interviewed nine project management professionals who were part of the client organization in a complex infrastructure project of the western part of the Metro in Helsinki and Espoo, Finland. The findings show that the lack of digital tools for collecting and analyzing project data, the focus of the DVM on the top management, and the lack of trust among the actors involved in the project undermine the success of DVM implementation. Thus, digitalizing data collection, increasing trust among project participants, and disseminating information are crucial for successful DVM implementation. KW - visual management KW - digital visual management KW - situational awareness KW - construction reporting PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2285/pdf L2 - http://iglc.net/Papers/Details/2285 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Unveiling the Hidden High Variability in Processes With Stable and Good PPC Results C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 316 EP - 327 PY - 2024 DO - 10.24928/2024/0118 AU - Samaniego, Omar A. AD - Engr., Master, NEC-ECC PMA, VDC, PMP®, PMI-RMP®, Risk Management Program Director, Universidad Peruana de Ciencias Aplicadas, Quality Consulting Solutions Director, author and independent researcher, comercial@quality-consulting.org, osamaniego@pucp.pe, https://orcid.org/0000-0003-4352-2610 AB - Despite high and stable Percentage of Plan Completed (PPC) values obtained in projects where Last Planner® System (LPS) was implemented, construction processes often conceal variability, undermining true completion. Likewise, LPS metrics rely on a deterministic approach for measuring the performance of processes without contrasting them with non-deterministic variables, which can provide a new perspective and new room for improvement. This is why, this paper introduces four new metrics – Percentage of Plan Completed+ (PPC+), Percentage of Plan Completed++ (PPC++), Percentage of Plan Completed+ based on random scheme (PPC+r), Rate of Waste (Rw), and Rate of Planning Assessment (Rpa) – to unveil hidden variability around activity daily schedule, rework, excess capacity, and planning. Further, utilizing statistical modeling to define the pioneering stochastic indicator Rpa, the study presents an important leap from traditional LPS deterministic metrics. Thus, by also conducting one survey among LPS practitioners on PPC conception and usage, it illuminates how seemingly stable estimated PPC values can misrepresent process performance. These metrics offer a transparent brand-new assessment way, revealing new opportunities for improvement aligned with lean principles. The study also provides foundation and directions for further research on hidden variability which can propel the current LPS approach. KW - Lean construction KW - Last Planner® System KW - PPC KW - metrics KW - stochastic indicator. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2286/pdf L2 - http://iglc.net/Papers/Details/2286 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Relationship Between Making-Do Waste and Good Management Practices in the Construction Industry: A Systematic Literature Review C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 328 EP - 340 PY - 2024 DO - 10.24928/2024/0122 AU - Amaral, Tatiana Gondim do AU - Filho, Renato Rafael Del Grosso AU - Pessoni, Rúbia Cristina de Souza AU - Barkokebas, Beda AD - Full Professor, Environmental and Civil Engineering Department, Federal University of Goiás, Brazil, tatianagondim@ufg.br, orcid.org/0000-0002-9746-4025 AD - Master Student, Program in Production Engineering, Federal University of Goiás, Brazil, renato.del@discente.ufg.br, orcid.org/0000-0003-4033-7129 AD - Master Student, Program in Production Engineering, Federal University of Goiás, Brazil, rubia@discente.ufg.br, orcid.org/0000-0001-5318-6820 AD - Assistant Professor, Department of Construction Engineering and Management, Pontificia Universidad Católica de Chile, Santiago, Chile, bbarkokebas@uc.cl, orcid.org/0000-0002-0054-1320 AB - The need within the construction market to increase control, performance, reduce waste and impacts on the environment is of utmost importance. In order to fully understand and contextualize the construction management process and help managers make decisions, this study aims to investigate studies through a systematic literature review which address the relationship between good management practices and losses from making-do within good construction practices. The search for articles was conducted in the Scopus, Science Direct and Web of Science databases. This diagnosis revealed the good management practices presented in the literature, which can be facilitating activities or good practices that reduce losses from making-do, guarantee compliance with the minimum requirements of the complete kit or the resilience of the process. The categories of knowledge gaps were structured into: Industry 4.0 and 5.0, Big Data, Multi-criteria decision making, Discrete event simulation, Resilience and Literature review. KW - Making-do. Wastes KW - Lean construction KW - Reworking KW - Planning PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2287/pdf L2 - http://iglc.net/Papers/Details/2287 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Methodology to Avoid the Occurrence of Making-Do Waste in Civil Construction C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 341 EP - 352 PY - 2024 DO - 10.24928/2024/0124 AU - Amaral, Tatiana Gondim do AU - Pessoni, Rubia Cristina de Souza AU - Filho, Renato Rafael Del Grosso AU - Galo, Nadya Regina AU - Luz, Neurielly Ribeiro da AU - Marcelino, Giovanna AD - Full Professor, Environmental and Civil Engineering Department, Federal University of Goiás, Brazil, tatianagondim@ufg.br, orcid.org/0000-0002-9746-4025 AD - Master Student, Program in Production Engineering, Federal University of Goiás, Brazil, rubia@discente.ufg.br, orcid.org/0000-0001-5318-6820 AD - Master Student, Program in Production Engineering, Federal University of Goiás, Brazil, renato.del@discente.ufg.br, orcid.org/0000-0003-4033-7129 AD - Assistant Professor, Universidade Federal Fluminense , Brazil, nadyagalo@hotmail.com, orcid.org/0000-0001-6641-5610 AD - Student, School of Environmental and Civil Engineering, Federal University of Goiás, Brazil, neuriellyribeiro@hotmail.com, orcid.org/0000-0002-2434-4348. AD - Student, School of Environmental and Civil Engineering, Federal University of Goiás, Brazil,ggiovannagrm@discente.ufg.br , orcid.org/0000-0002-2190-0513. AB - The scenario of the Civil Construction industry is highlighted by the very high level of production waste, waste generation, and non-value-added activities. Among the array of existing waste types, one significant category is making-do waste, which gives rise to the following consequences: reduced productivity, reduced worker safety and motivation, reduced quality, and rework. The proposed model aims to contribute to efficiency and competitiveness in civil construction by filling gaps in loss management through making-do. Therefore, this study proposes a methodology based on establishing guidelines aimed at avoiding waste due to improvisation by addressing their root causes. To this end, we aimed to analyze a database containing a survey specifically focused on making-do waste at construction sites. A sample of 420 different kinds of waste was obtained, and 47 different guidelines applied to different work stages were created. The guideline with the highest number of occurrences was “Perform verification and inspection from the FVS before, during and after the execution of the service,” while the most substantial number of propositions referred to waste whose missing prerequisites were “Information” and “Labor." When applied to the proposed methodology, these guidelines can become a strategic tool combined with production management that is aimed at minimizing waste. KW - Making-do waste; Guidelines; Production management; Civil Construction. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2288/pdf L2 - http://iglc.net/Papers/Details/2288 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - The Influence of Preconstruction Phase and Lean Construction Implementation on Project Performance C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 353 EP - 364 PY - 2024 DO - 10.24928/2024/0133 AU - Hamaidi, Munther AU - Ghandour, Nour AU - Hadi, Mohammad Abdel AU - Naser, Ayman AD - Master, Civil Engineering Department, Qatar University, Qatar, Mh1003137@qu.edu.qa AD - Lean Lead, China Railway Construction Corporation Limited, Doha, Qatar, Nourghndr@hotmail.com AD - Lean Specialist, WSP International Consultant, Doha, Qatar, Mohammad.AbdelHadi@wsp.com AD - Lecturer, Civil and Environmental Engineering Department, Qatar University, Qatar, an1401569@qu.edu.qa , https://orcid.org/0000-0002-0670-9200 AB - Effective design management during the preconstruction phase has significant effects on project performance within the Architecture, Engineering, and Construction (AEC) sector. This research examines critical factors that impact the design outcomes at the preconstruction phase in the construction of infrastructure projects which affect the overall project performance. Using a sequential hybrid research approach that combines qualitative interviews and quantitative surveys, this study identifies ten crucial factors that influence project performance during the preconstruction phase. The relative importance index (RII) method is used to prioritise these factors, emphasising the most influential areas for enhancement. This study investigates the use of lean construction (LC) principles and tools to minimize the impact of these factors. These tools include integrated project delivery (IPD), building information modelling (BIM), last planner system (LPS), value stream mapping (VSM), target value design (TVD), set-based design (SBD), and choosing by advantage (CBA). Authors propose a comprehensive Lean Construction-based Risk Mitigation (LC-RM) framework to integrate these methodologies and enhance the design process during the preconstruction phase, thereby improving overall project performance. This research makes a valuable contribution to the field of construction management by providing practical recommendations for effective decision-making and lean practices during the preconstruction phase. It serves as a preliminary step towards improving construction management processes and has the potential to be further explored in future studies. KW - Lean construction KW - Design management KW - Preconstruction KW - Risk mitigation KW - Critical factors KW - Infrastructure construction project PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2289/pdf L2 - http://iglc.net/Papers/Details/2289 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - An AI Copilot for Make-Ready Planning in the Last Planner System C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 365 EP - 376 PY - 2024 DO - 10.24928/2024/0155 AU - Lagos, Camilo I. AU - Herrera, Rodrigo F. AU - Cawley, Alejandro Mac AU - Alarcón, Luis F. AD - PhD Candidate, School of Engineering, Pontificia Universidad Católica de Chile, CONXAI Technologies GmbH, colagos@uc.cl, orcid.org/0000-0002-0648-0039 AD - Assistant Professor, School of Civil Engineering, Pontificia Universidad Católica de Valparaíso, rodrigo.herrera@pucv.cl orcid.org/0000-0001-5186-3154 AD - Associate Professor, Dept. of Industrial Engineering, Pontifica Universidad Católica de Chile, amac@ing.puc.cl, orcid.org/0000-0002-4848-4732 AD - Professor, Dept. of Construction Engineering and Management, Pontifica Universidad Católica de Chile, lalarcon@ing.puc.cl, orcid.org/0000-0002-9277-2272 AB - Many challenges in partial Last Planner System implementations can be attributed to the underutilization of Make-Ready Planning, although other factors also play a role. Failing to identify constraints in time to prevent Reasons for Noncompliance (RNCs) decreases short and long-term performance. Reducing the complexity of identifying, registering, and managing constraints systematically was found as a critical improvement opportunity. This research proposes the use of an artificial intelligence (AI) recommender system to facilitate constraint identification and RNC prevention. The system employs Large Language Model (LLM) embeddings to represent new task descriptions and find the most similar previously seen tasks. Subsequently, it fetches the set of constraints and RNCs belonging to these past tasks, represented in the embedded system, and uses it to produce three prioritized recommendations. Finally, the selected recommendations are categorized using Machine Learning Classification. The model was able to provide three sound recommendations for 69% of tasks and yielded a 60% relative improvement compared to a rule-based frequent pattern probabilistic system. The results pose three benefits for LPS practitioners: Reducing the effort needed to identify and register constraints, alerting probable RNCs needing to be prevented, and enriching data registration, allowing it to be used in future knowledge management. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2290/pdf L2 - http://iglc.net/Papers/Details/2290 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Takt and Pull Zones in the Construction of Logistics Warehouses C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 389 EP - 400 PY - 2024 DO - 10.24928/2024/0173 AU - Bellaver, Gustavo Bridi AU - Etges, Bernardo Martim Beck da Silva AU - Rego, Lauro Henrique Alves AU - Staudt, Luis AD - 1M.Sc. Civil Engineer, Project Manager, Climb Consulting Group, Porto Alegre, Brazil, gustavo@climbgroup.com.br, https://orcid.org/0000-0002-4937-5861 AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, bernardo@climbgroup.com.br, orcid.org/0000-0002-3037-5597 AD - 3Civil Engineer, Quality Control Coordinator, LOG Comertial Properties, Belo Horizonte, Brazil, lauro.henrique@logcp.com.br, https://orcid.org/0000-0002-9519-2644 AD - PhD Civil Engineer, Consultant, Climb Consulting Group, São Leopoldo, Brazil, luis@climbgroup.com.br, orcid.org/0000-0002-2398-2102 AB - This article will describe how the application of lean philosophy tools in the construction of logistics warehouses can offer new perspectives on project planning, promoting clearer and more visual communication, collaboration, and decision-making processes. this article investigated the use of takt and pull planning methods for the development of an integrated management system for logistics warehouses located in different Brazilian cities. Takt planning of scheduled activities decreased waiting times, leading to a reduction of approximately 8% in the execution time of construction works. Other benefits included greater team engagement and participation in activity planning and sequencing. Two takt zones (repetitive elements) and one pull zone (non-repetitive elements) were demarcated at each construction site, which were planned using line balancing as a unifying element. This strategy facilitated visual management by the field team, ensuring that the entire planning process flowed through the actors actively involved in carrying out the work. In a questionnaire-based survey, construction teams reported great improvements in planning, work comprehension, and coordination between work fronts, as well as improvements in visual management and collaboration. The responses indicated a notable shift in how the field team approached planning and conceptualized their work and demonstrated that the incorporation of takt and pull planning concepts was essential for achieving these results. KW - Last Planner System KW - Lean construction KW - Logistics warehouses KW - Pull planning KW - Survey KW - Takt planning PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2291/pdf L2 - http://iglc.net/Papers/Details/2291 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Exploring the Limitations and Opportunities of Industrialized Construction in Colombia From a Lean Perspective C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 401 EP - 415 PY - 2024 DO - 10.24928/2024/0174 AU - León, William AU - Guevara, Jose AU - García-López, Nelly AD - Ph.D. research assistant, Civil and Environmental Engineering Department, Universidad de los Andes, Bogotá, Colombia, wm.leon10@uniandes.edu.co, https://orcid.org/0000-0002-2533-853X AD - Associate Professor, Civil and Environmental Engineering Department, INGECO research group director, Universidad de los Andes, Bogotá, Colombia, ja.guevara915@uniandes.edu.co, https://orcid.org/0000-0002-3485-9169 AD - Assistant Professor, Civil and Environmental Engineering Department, INGECO research group, Universidad de los Andes, Bogotá, Colombia, ne-garci@uniandes.edu.co, https://orcid.org/0000-0001-9053-0897 AB - Despite the significant impact that industrialized construction (IC) has on the project production chain and its clear influence on productivity levels across the industry, multiple limitations hinder its suitable implementation worldwide. Existing research has identified synergies between the implementation of Lean Principles (LP) and the adequate implementation of IC processes. However, most of these studies have been carried out in markets with a high maturity and implementation levels of both IC and LP. This paper aims to explore the synergies between the implementation of LP and opportunities for improvement for the effective implementation of IC in Colombia. This article presents a qualitative analysis of twenty semi-structured interviews with construction professionals from some of the largest construction companies in Colombia. The analysis revealed that despite growing interest in applying IC by leading companies in Colombia, the current implementation of IC principles is still low. Additionally, the application of LP such as continuous improvement, variability reduction, value generation, and waste reduction are identified as key enablers for IC. KW - Industrialized Construction KW - Lean Principles KW - Productivity KW - Developing Countries KW - Semi-structured Interviews KW - and Literature Review. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2292/pdf L2 - http://iglc.net/Papers/Details/2292 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Quantifying and Planning Carbon Emissions in Construction With Location-Based Scheduling C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 416 EP - 427 PY - 2024 DO - 10.24928/2024/0175 AU - Pedersen, Kristian Birch AU - Stefankovics, Glória AU - Nachev, Stefan Plamenov AU - Wandahl, Søren AD - M.Sc. (CivEng), Master of IT, PhD, Part-time Lecturer, Department of the Built Environment, Aalborg University, CEO and founder of Exigo A/S, Denmark, kbp@exigo.dk, https://orcid.org/0000-0002-4400-2046 AD - B.Sc. (ATCM), Research assistant, Department of Civil & Architectural Engineering, Aarhus University, and Exigo A/S, Denmark, gs@exigo.dk, https://orcid.org/0009-0003-6400-4182 AD - M.Sc. (CivEng), Specialist, Exigo A/S, Denmark, spn@exigo.dk AD - Professor, Department of Civil & Architectural Engineering, Aarhus University, Denmark, swa@cae.au.dk, https://orcid.org/0000-0001-8708-6035 AB - Many countries focus on limiting greenhouse gas (GHG) emissions, such as carbon dioxide, which also impacts the construction industry. The most forward-thinking countries have already enforced regulations on the maximum allowed emission from new buildings. Regarding building lifecycle stages after EN15978, the regulations primarily target product and usage stages, neglecting construction process emissions. This oversight is concerning as material innovations reduce product emissions, shifting the need for optimization to the construction stage. This study quantifies construction emissions, optimizing GHG during construction using the Location-Based Management System (LBMS) method. It incorporates construction-related emissions and uses a Location-Based Schedule, calculating anticipated kilowatt-hours (kWh) usage per location with data from various sources. Tested on three cases—residential building, office renovation, and medical facility—the method shows varied results based on project size, complexity, and LBMS introduction time. Findings indicate a potential 42% CO2 reduction in the scenario with the longest construction time. The study identifies site emission rates surpassing the 2023 limit over 30 years, underscoring the importance of comparing planned and realized schedules. Given climate regulations until 2050, the research deems the quantification method crucial for accurately addressing construction site emissions. KW - Location-based Management System (LBMS) KW - Takt Planning (TP) KW - environment KW - greenhouse gas emissions (GHG) KW - planning PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2293/pdf L2 - http://iglc.net/Papers/Details/2293 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Synergy Between LPS and Slack: A Case Study in Brazilian Horizontal Housing Developments C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 428 EP - 441 PY - 2024 DO - 10.24928/2024/0176 AU - Vieira, João P. P AU - Etges, Bernardo M. B. S. AU - Vasconcelos, Fernando P. AU - Bellaver, Gustavo B. AU - Nogueira, Hugo R. C. AD - M.Sc. Eng., Lean Consultant at Climb Consulting Group, Porto Alegre, Brazil, joao@climbgroup.com.br, orcid.org/0000-0003-0292-2570 AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, bernardo@climbgroup.com.br, orcid.org/0000-0002-3037-5597 AD - Coordenador de Assembly At Spotlar, Florianópolis, Brazil, fernandopereiravasconcelos@gmail.com AD - M.Sc. Civil Engineer, Project Coordinator, Climb Consulting Group, Porto Alegre, Brazil, gustavo@climbgroup.com.br, https://orcid.org/0000-0002-4937-5861 AD - Construction Coordinator at FGR Incorporações SA, Goiania, Brazil, eng.hugocavalcante@gmail.com, https://orcid.org/0009-0001-6543-9052 AB - Construction projects are remarkably unique, given the specific nature in which their production processes are organized and the high levels of variability and uncertainty that permeate their entire life cycle. Several initiatives can be implemented to mitigate the effects associated with unpredictability in construction projects. The Last Planner System has emerged as a valuable tool to provide greater confidence in the planning of construction projects. Another practice that has been increasingly adopted in the sector is the use of buffers. Despite the incipient perception that buffers may be associated with waste, studies conducted in airports and logistics centers have suggested their use as a valuable ally in combating uncertainties and protecting the production system. Research also points to the combined use of buffers with pull planning to reduce the effects of variability. In view of the foregoing, this study aimed to investigate the use of slack practices together with the long-, medium-, and short-term plans of the Last Planner System. The investigation used as a reference the following classifications of time off practices mapped in the literature: Redundancy, work-in-progress and margins of manoeuvre. The research was based on a case study of Brazilian horizontal housing developments. The main finding highlights the synergy between the categories of time off practices found and the objectives established by each of the horizons of the Last Planner System. Furthermore, other dimensions of analysis, such as logistics, supplies, security, may arise due to the nature of the project typology, and the need for practices that mitigate the uncertainties inherent in the execution of these projects. KW - Lean Construction KW - slack KW - last planner system. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2294/pdf L2 - http://iglc.net/Papers/Details/2294 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Scrum’s Distinct Role Definition Complementing LPS & Takt Implementation C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 442 EP - 453 PY - 2024 DO - 10.24928/2024/0181 AU - Power, William AU - Sinnott, Derek AU - Lynch, Patrick AD - PhD Candidate, South East Technological University, Cork Road, Waterford. williepower2010@gmail.com ORCID – 0000-0001-5791-846X AD - Senior Lecturer, South East Technological University, Cork Road, Waterford. Derek.Sinnott@setu.ie ORCID – 0000-0003-3969-8699 AD - Lecturer, South East Technological University, Cork Road, Waterford. Patrick.Lynch@setu.ie ORCID – 0000-0002-5406-3846 AB - LPS and Takt are lauded for their potential to transform construction’s approach to planning and execution. However, more explicit specification of the roles and responsibilities of different levels of management would be helpful towards more effective functioning of the methods. Scrum offers distinct role, responsibility, and accountability definition and this paper examines the applicability of such disciplined role clarity to assist LPS and Takt implementations. This mixed-methods research uses case study design and data from purposeful semi-structured interviews, observation, a literature review, and project documentation review from four projects in three different construction sectors. Findings posit that the adoption of role definition of Product Owner, Scrum Master, and Developers from Scrum could bring greater clarity and effectiveness to site management team’s delivery. Eliminating duplication of effort and crossover of duties allows greater focus on executing work, preparing work, and stakeholder engagement. KW - Lean construction KW - scrum KW - agile KW - last planner system KW - takt. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2295/pdf L2 - http://iglc.net/Papers/Details/2295 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Relationship Between Time Spent in Production Work Activities and Production Workspaces. C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 454 EP - 465 PY - 2024 DO - 10.24928/2024/0189 AU - Pérez., Cristina T. AU - Wandahl, Søren AU - Arildsen, Mathias AD - Assistant Professor, Department of Civil & Architectural Engineering (CAE), Aarhus University (AU), Denmark, cristina.toca.perez@cae.au.dk, https://orcid.org/0000-0002-4182-1492 AD - Professor, CAE Department, AU, Denmark, swa@cae.au.dk, https://orcid.org/0000-0001-8708-6035 AD - Master student, CAE Department, AU, Denmark, 201806089@post.au.dk AB - The study presented in this paper is part of an ongoing research project that addresses the absence of established procedures for automatically measuring the distribution of time workers spend on Value-adding (VA) activities. To understand the relationship between workers’ time spent on VA activities and VA workspaces, the activities conducted by a carpenter trade were studied during the realization of a Case Study on a renovation building project. The carpenters were divided into three groups regarding the activities that they conducted: interior, façade, and roof activities. The authors used two sources of evidence to compare the time that workers spent in production work categories and workspaces: (1) the work sampling technique to obtain time spent in work categories and (2) smartwatches to collect time spent in different workspaces. The authors used geographic data points provided by smartwatches worn by the carpenter trade to collect their location within the job site and developed a Python script to automatically group the data points into workspaces. Correlation analysis reveals a strong correlation (R2=0.2473) and very strong correlation (R2=0.7886) between time spent in VA workspaces and time spent on VA activities when the workers worked on interior and exterior activities, respectively. KW - Workspaces KW - construction site KW - production work KW - value-adding work. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2296/pdf L2 - http://iglc.net/Papers/Details/2296 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Last Planner System in the Owner's Perspective: Case Study in Onshore Wind Energy Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 466 EP - 467 PY - 2024 DO - 10.24928/2024/0210 AU - Fireman, Marcus C.T. AU - Bizarro, Lucas B. AU - Antonini, Bruno G. AU - Campos, Giuliano Silva de AU - Junior, Celso Denardi AU - Etges, Bernardo M.B.S. AD - Founding Partner at Climb Consulting Group, PhD Candidate, M.Sc. Eng. Federal University of Rio Grande do Sul, Porto Alegre, Brazil, marcus@climbgroup.com.br, orcid.org/0000-0001-5843-4715 AD - Lean Consultant at Climb Consulting Group, Graduate in Production Eng. At Pucrs, Porto Alegre, Brazil. lucas@climbgroup.com.br, orcid.org/0000-0002-0341-0879 AD - M.Sc.Eng., Lean Consultant at Climbg Consulting Group, Graduate in Civil Eng. At Pucrs, Porto Alegre, Brazil, bruno@climbgroup.com.br, orcid.org/0000-0003-4437-4664 AD - Planning Engineer at Engie Brazil, Graduate at Civil Engineer at Pucrs, Porto Alegre, Brazil, giuliano.campos@engie.com, orcid.org/ AD - Planning Coordinator at Engie Brazil, Graduate at Electrical Engineer at Federal University of Parana, Porto Alegre, Brazil, celso.denardi@engie.com, orcid.org/ AD - Founding Partner at Climb Consulting Group, PhD Candidate, M.Sc. Eng. Federal University of Rio Grande do Sul, Porto Alegre, Brazil, bernardo@climbgroup.com.br, orcid.org/ 0000-0002-3037- 5597 AB - The race to reduce countries' carbon footprints has increased pressure to shorten the timelines of projects related to the construction of renewable energy parks. Projects of this scale require greater involvement between the representatives of the owner, who act in project management, and companies contracted to perform different scopes of the project. This study presents, through two case studies, the adoption of a model based on the Last Planner System from the perspective of the owner in onshore wind energy projects. It discusses current challenges within the management model of these projects and addresses tools and routines to be considered by companies participating in onshore wind energy construction. Among the main contributions of the research is the highlighted importance of the owner in the dissemination of lean within contracted companies, as well as the role of rituals such as control tower meetings and lookahead planning in improving communication and collaboration between sectors. KW - Lean construction KW - Last Planner System KW - owner KW - onshore wind energy project KW - collaboration. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2297/pdf L2 - http://iglc.net/Papers/Details/2297 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Agile Ramp-Up: A Method to Reduce Premature Construction Start C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 478 EP - 489 PY - 2024 DO - 10.24928/2024/0212 AU - Lima, Caio M. AU - Fireman, Marcus C. T. AU - Nascimento, Lucas H. AU - Etges, Bernardo M. B. S. AU - Antonini, Bruno G. AU - Bluhm, Bruno B. AU - Silva, Denilson P. AU - Rocha, Fabiano C. O. AD - M.Sc. Eng., Specialist in research, development and innovation at Grupo Cortez, Fortaleza, Brasil caiolima@cortezengenharia.com.br AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil. marcus@climbgroup.com.br AD - Planning Coordinator at Grupo Cortez, Fortaleza, Brasil lucashenrique@cortezengenharia.com.br AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil. bernardo@climbgroup.com.br AD - M.Sc. Candidate in Civil Eng. at Federal University of Rio Grande do Sul, Lean Consultant at Climb Consulting Group, Porto Alegre, Brazil. bruno@climbgroup.com.br AD - Director Eng. at Grupo Cortez, Fortaleza, Brasil brunobluhm@cortezengenharia.com.br AD - General Superintendent at Grupo Cortez, Fortaleza, Brasil denilsonsilva@cortezengenharia.com.br AD - Cost Manager at Grupo Cortez, Fortaleza, Brasil fabianorocha@cortezengenharia.com. AB - It is understood that one of the main contributing factors to stagnant productivity in the construction sector is the haste of project teams to start construction without a thorough readiness assessment. With the aim of improving the sector's performance, recent research has turned to analyzing the consequences and challenges associated with the premature start of projects, showing a direction in the search for effective solutions to these issues. The purpose of this work was to present the application of an agile ramp-up method developed to mitigate cases of premature construction start in onshore wind projects. The method used in this article was Design Science Research and covers the following phases: awareness of the problem through understanding the concepts involved; artifact suggestion through the development of a diagnosis; development from the choice of appropriate tools for constructing the "Starting Right" method; evaluation through the impact, transparency, and statistical variance analysis in 16 projects, of which 6 applied the method; conclusion through the systematization of the main learnings. The "Starting Right" method significantly improved the performance of projects during the initial phases, with strategic tool use proving essential for effective responses to various scenarios. KW - Agile Ramp-Up KW - Lean construction KW - Wind Farm KW - LPS. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2298/pdf L2 - http://iglc.net/Papers/Details/2298 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Lean Construction Implementation in the Construction of an Airport Runway C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 490 EP - 500 PY - 2024 DO - 10.24928/2024/0216 AU - Moura, Lucas M. AU - Antonini, Bruno G. AU - Fireman, Marcus C. T. AU - Etges, Bernardo M. B. S. AU - Campos, Frederico R. AU - Kronbauer, Bárbara K. AD - Lean Consultant at Climb Consulting Group, Graduate in Civil Eng. at Uniredentor, Itaperuna, Brazil. lucas.macalister@climbgroup.com.br , AD - M.Sc. Civil Eng. at Federal University of Rio Grande do Sul, Lean Consultant at Climb Consulting Group, Porto Alegre, Brazil. bruno@climbgroup.com.br, orcid.org/0000-0003-4437-4664 AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, marcus@climbgroup.com.br , orcid.org/0000-0001-5843-4715 AD - PhD Candidate, M.Sc. Eng., Founding-Partner at Climb Consulting Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil, bernardo@climbgroup.com.br , orcid.org/0000-0002-3037- 5597 AD - Director Eng. at Neovia Engenharia, Curitiba, Paraná, Brazil frederico.campos@neoviaengenharia.com.br , orcid.org/0000-0002-5745-7461 AD - Planning Eng. at Neovia Engenharia, Curitiba, Paraná, Brazil barbara.kronbauer@neoviaengenharia.com.br , orcid.org/0000-0003-1370-7331 AB - This study explores the application of Lean Construction in the expansion and restoration of an airport runway, a project marked by complexities and high demands. The aim of this paper is to address the following research question: "What is the effectiveness of the daily scheduling approach compared to the weekly horizon approach for short-term scheduling in complex and variable infrastructure projects?". To answer this question, an extensive literature review was conducted, anchored in the action research method. It was found that the adoption of daily schedules may be more efficient, as it allows for greater agility in responding to client needs, accommodating constant changes requested by stakeholders, and managing uncertainties inherent in infrastructure projects of this nature. The results highlight significant advances in long-term adherence and project management effectiveness, despite encountered obstacles such as coordination among different stakeholders and adaptation to variabilities. The Percentage of Constraint Removal (PCR) improved by 22% from the start to the end of the project, while maintaining a 93% adherence to the Master Planning. KW - Lean construction KW - Last Planner® System KW - variability KW - constraint analysis KW - lookahead planning. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2299/pdf L2 - http://iglc.net/Papers/Details/2299 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Principles and Prescriptions for the Development and Implementation of Performance Dashboards C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 501 EP - 512 PY - 2024 DO - 10.24928/2024/0220 AU - Barth, Karina AU - Formoso, Carlos AD - Researcher, Building Innovation Research Unit (NORIE), Universidade Federal do Rio Grande do Sul (UFRGS). Porto Alegre, RS, Brazil, kbertotto@gmail.com, https://orcid.org/0000-0001-9612-6246 AD - Professor, Building Innovation Research Unit (NORIE), Universidade Federal do Rio Grande do Sul (UFRGS). Porto Alegre, RS, Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 AB - Lean Production implementation in construction creates additional demands for Performance Measurement Systems (PMS), beyond what is typically suggested in general performance measurement literature. A PMS can support the implementation of Lean Production by evaluating the impacts of changes and providing information to guide organizations through this process. Some companies have adopted additional metrics during Lean implementation, but often limited to indicators related to the Last Planner System. Most companies still use traditional production control metrics, like cost, time deviation and project progress. There are opportunities for enhance performance measurement in Lean implementation programs, especially by incorporating leading indicators related to fundamental concepts and principles, such as pull production, work-in-progress, and continuous flow. Performance dashboards play a key role in achieving those objectives, facilitating information distribution across managerial levels, enhancing stakeholder communication, and encouraging participation. The main outcome of this investigation is a set of design principles (i.e. general recommendations that support decision-making in the design of a solution) and design prescriptions (i.e. suggested course of action for a given circumstance to achieve a certain effect) to guide the development and implementation of performance dashboards. This research is based on two empirical studies conducted in construction companies implementing lean production. KW - Dashboard KW - Performance Measurement KW - Indicator KW - Metric KW - Visual Management. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2300/pdf L2 - http://iglc.net/Papers/Details/2300 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Proposal for a Deadline Deviation Index Based on Line of Balance and Rhythm Deviation Data C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 513 EP - 522 PY - 2024 DO - 10.24928/2024/0221 AU - Sterzi, Marcus P. AU - Bonesi, Fabiana AD - MSc, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. Consultant and Managing Partner at LD Consulting, marcus@ldconsulting.com.br, https://orcid.org/0000-0002-2235-944X AD - MSc, Building Innovation Research Unit (NORIE), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil. Consultant and Managing Partner at LD Consulting, fabiana@ldconsulting.com.br, orcid.org/0000-0002-9899-7798 AB - The line of balance (LOB) plays an important role in the implementation of Location-Based Planning and Control (LBPC), inducing most activities to be carried out at only one production rate and enabling the established deadlines to be met. Monitoring deviations from these deadlines is essential for project success, particularly in the construction industry. Rhythm deviation, an indicator rooted in Lean Construction principles and closely linked to LBPC, reveals the interference of critical tasks with other project activities and enables the analysis of how rhythm deviation of critical activities affects the project's deadline deviation. Analysing deadlines using the LOB technique in combination with rhythm deviation helps identify which activities are associated with project delays and advancements, allowing for corrective actions to improve workflow. However, this topic receives limited attention in the literature. The aim of this research is to propose a Deadline Deviation Index for monitoring and projecting delays and advancements in construction projects based on LOB and rhythm deviation data. This paper adopts an Action-Research methodology within a Case Study Approach. It presents findings from a case study involving 12 residential building projects that utilized location-based methods for scheduling and control, alongside rhythm deviation for monitoring critical processes. The results underscore how integrating the LOB technique with rhythm deviation enhances workflow and deadline management, thereby refining the sector's ability to estimate delays and advancements. KW - Location-Based Planning and Control (LBPC) KW - Takt planning (TP) KW - Line-of-Balance KW - Rhythm Deviation KW - Deadline Deviation. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2301/pdf L2 - http://iglc.net/Papers/Details/2301 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Collaborative Planning of Subcontractors Using the Last Planner System and BIM: A Case Study on a Gas Subcontractor in Repetitive Housing Projects C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 523 EP - 534 PY - 2024 DO - 10.24928/2024/0222 AU - Brioso, Xaver AU - Delgado, Karla AU - Herrera, Rodrigo F. AU - Lozano, Miguel AU - Bravo, Luis AD - Professor, GETEC Research Group, Department of Engineering, Pontifical Catholic University of Peru, Perú, xbrioso@pucp.edu.pe orcid.org/0000-0002-0174-0241 AD - Researcher, GETEC Research Group, Department of Engineering, Pontifical Catholic University of Peru, Perú, karla.delgado@pucp.pe orcid.org/0009-0004-3627-0982 AD - Assistant Professor, School of Civil Engineering, Pontificia Universidad Católica de Valparaíso, rodrigo.herrera@pucv.cl orcid.org/0000-0001-5186-3154 AD - Lecturer, GETEC Research Group, Department of Engineering, Pontifical Catholic University of Peru, Perú, malozanov@pucp.edu.pe orcid.org/0000-0001-6238-9400 AD - Assistant Professor, GETEC Research Group, Department of Engineering, Pontifical Catholic University of Peru, Perú, bravo.lh@pucp.edu.pe orcid.org/0000-0003-1476-9710 AB - The objective of this study is to adapt the Last Planner System (LPS) for managing subcontractors in natural gas installations within repetitive housing projects, using BIM technology for enhanced modeling and efficiency. Our methodology was applied to a large-scale, multi-family, low-cost housing project in Lima, Peru. Through this application, we achieved high Percent Plan Complete (PPC) values and improved collaborative planning practices. This paper makes distinct contributions to the subcontractor management literature: (1) it demonstrates the practical integration of LPS with BIM to streamline subcontractor activities in a real-world setting; (2) it offers a novel approach for determining optimal Takt Time Planning for daily and weekly schedules, enhancing the predictability and reliability of subcontractor work; and (3) lessons learned from the implementation provide a roadmap that can be adapted to other subcontractor management scenarios. KW - Last Planner System KW - subcontractor management KW - gas facilities management KW - continuous improvement KW - BIM. PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2302/pdf L2 - http://iglc.net/Papers/Details/2302 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER - TY - CONF TI - Systematic Approach to Making People, Processes & Projects Ready for Make-Ready C1 - Auckland, New Zealand C3 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) SP - 535 EP - 547 PY - 2024 DO - 10.24928/2024/0231 AU - Ebbs, Paul AU - Ward, Steven AU - Hour, Nour Al AU - Manu, Emmanuel AU - Asnaashari, Ehsan AD - Technical Director, Transport & Infrastructure (T & I), Roads, WSP in the UK, paul.ebbs@wsp.com, orcid.org/0009-0003-5630-1726 AD - Managing Director, Lean Construct Ltd., UK, steve@leanconstruct.co.uk, orcid.org/0000-0002-5291-7246 AD - Associate, T & I, Roads, WSP in the UK, nour.alhour@wsp.com, orcid.org/0009-0003-5630-1726 AD - Associate Professor, Centre of the Built Environment, School of Architecture, Design and the Built Environment, Nottingham Trent University, UK, emmanuel.manu@ntu.ac.uk, orcid.org/0000-0002-9002-3681 AD - Senior Lecturer, Centre for Lean Projects, Department of Construction Management, Nottingham Trent University, UK, ehsan.asnaashari@ntu.ac.uk, orcid.org/0000-0001-5552-9428 AB - Project management methods like risk management (RM), production planning (including make-ready) and continuous improvement (CI), are often considered in isolation of each other. The literature recognises how teams struggle with implementing these methods according to known current best practices and standards. The purpose of this paper is to report the on-going development of a research artefact called IRMA 3600 (Integrated Risk Management Approach) through a Longitudinal Action Case Study over four cases between 2016 and 2024. There is a particular focus on Case 4 – an ISO 18404 Certified Alliance. In summary, this research has identified links between RM, make-ready planning and CI, and proposes IRMA 3600 as a model to advance the Last Planner® System (LPS) by feeding what ‘might’ happen or might be possible through ‘should, can, will, did, learn’ functions. We conclude that both effective RM and make-ready are required to create and protect value which includes reliable workflow. However, to embed RM and make-ready planning a safe and collaborative environment is desired. In theory, RM is complex as it deals with uncertainty. On the other hand, make-ready is a relatively straightforward activity to ‘just’ screen tasks for constraints. However, in practice both are extremely difficult to implement. KW - Risk Management KW - Make-Ready KW - Last Planner® System KW - IRMA 3600 KW - Alliancing PB - T2 - Proceedings of the 32nd Annual Conference of the International Group for Lean Construction (IGLC 32) DA - 2024/07/01 CY - Auckland, New Zealand L1 - http://iglc.net/Papers/Details/2303/pdf L2 - http://iglc.net/Papers/Details/2303 N1 - Export Date: 13 March 2025 DB - IGLC.net DP - IGLC LA - English ER -