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: 25 April 2025 DB - IGLC.net DP - IGLC LA - English ER -