TY - CONF TI - Social sustainability and human-centered lean practices in modular and off-site construction C1 - Singapore, Singapore C3 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) SP - 875 EP - 886 PY - 2026 DO - 10.24928/2026/0275 AU - Rasouli, Helia AU - Mehdipoor, Amirhossein AU - Melhado, Silvio AU - Iordanova, Ivanka AD - Graduate Student, Department of Construction Engineering, École de Technologie Supérieure (ÉTS), Montreal, Canada, helia.rasouli.1@ens.etsmtl.ca AD - Research Officer, National Research Council (NRC) Canada, Ottawa, Canada, amirhossein.mehdipoor@nrc-cnrc.gc.ca, https://orcid.org/0000-0002-9889-2478 AD - Professor, Department of Construction Engineering, École de Technologie Supérieure (ÉTS), Montreal, Canada, Silvio.Melhado@etsmtl.ca AD - Professor, Department of Construction Engineering, École de Technologie Supérieure (ÉTS), Montreal, Canada, ivanka.iordanova@etsmtl.ca, https://orcid.org/0000-0002-4596-2604 ED - Hamzeh, Farook ED - Poshdar, Mani ED - Garcia-Lopez,, Nelly P. AB - This paper investigates how Lean Management principles influence social sustainability and human-centered practices in Modular and Off-Site Construction (MOC), highlighting both positive and context-dependent interactions. Using a mixed-method approach combining systematic literature review, NVivo-assisted coding, expert interviews, and quantitative validation, the study examines key social dimensions including workforce well-being, communication, inclusivity, safety, and working conditions. Quantitative results (Cronbach’s Alpha = 0.944; Mean Score = 4.11) confirm the significance of the social dimension within Lean–Sustainability integration. Findings indicate that Lean principles such as Respect for People and Continuous Improvement foster collaboration, empowerment, and safety culture, while practices such as Just-in-Time may introduce trade-offs if not adapted to modular workflows. The results are synthesized into a conceptual, expert-validated framework, operationalized through a dual-impact analytical matrix capturing positive, negative, and context-dependent interactions. The study highlights the importance of context-sensitive Lean implementation and provides practical guidance for balancing efficiency and workforce well-being in industrialized construction environments. KW - Modular Off-Site Construction (MOC) KW - lean management KW - social sustainability PB - T2 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) DA - 2026/06/22 CY - Singapore, Singapore L1 - http://iglc.net/Papers/Details/2563/pdf L2 - http://iglc.net/Papers/Details/2563 N1 - Export Date: 19 June 2026 DB - IGLC.net DP - IGLC LA - English ER -