TY - CONF TI - Developing a mistakeproofing mindset to increase safety capacity C1 - Singapore, Singapore C3 - Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) SP - 378 EP - 389 PY - 2026 DO - 10.24928/2026/0231 AU - Cheung, Eugene H. AU - Eigendorf, Tim AU - Kehinde, Tomisin AU - Saragih, Gregory F. AU - Tommelein, Iris D. AD - MS Student, Civil and Environmental Engineering Department and Project Production Systems Laboratory (P2SL), University of California, Berkeley, USA, ehcheung@berkeley.edu, orcid.org/0009-0006-0343-0243 AD - P2SL Researcher, Project Production Systems Laboratory (P2SL) and Berkeley International Study Program, University of California, Berkeley, USA; MS Student, Civil Engineering, Technical University of Berlin, Germany, timeigendorf@icloud.com, orcid.org/0009-0005-1073-9444 AD - MS Student, Civil and Environmental Engineering Department and Project Production Systems Laboratory (P2SL), University of California, Berkeley, USA, tomisin.kehinde@berkeley.edu, orcid.org/0009-0001-0865-3204 AD - MS Student, Civil and Environmental Engineering Department and Project Production Systems Laboratory (P2SL), University of California, Berkeley, USA, gregory.saragih@berkeley.edu, orcid.org/0009-0001-4698-3722 AD - Distinguished Professor, Civil and Environmental Engineering Department, Director, Project Production Systems Laboratory (P2SL), University of California, Berkeley, USA, tommelein@berkeley.edu, orcid.org/0000-0002-9941-6596 ED - Hamzeh, Farook ED - Poshdar, Mani ED - Garcia-Lopez,, Nelly P. AB - Safety capacity is the ability to increase the likelihood that work will go right under variable- and uncertain conditions. In construction projects, safety has traditionally been managed using lagging indicators, but these offer limited insights to develop safety capacity. Whereas safety management practices can be reactive and compliance-driven, they can also be proactive and anticipation-driven. Specific mistakeproofing (poka yoke) practices can be either one. In this paper, we argue that mistakeproofing practiced with a proactive mindset helps to build safety capacity. We present an approach for developing and sustaining a mistakeproofing mindset by drawing on concepts from uncertainty management (including risk management), Safety-I, Safety-II, and resilience engineering. To demonstrate this mindset, the Work Operation Framework was applied to analyze two construction examples of mistakeproofing related to safety management. Developing this mindset may narrow the gap between work-as-imagined and work-as-done. It recognizes that making adaptations is a part of doing work and reflects the intelligence of a (group of) worker(s). The reason for developing a mistakeproofing mindset is to support organizations with continuous improvement to increase their safety capacity. KW - Mistakeproofing KW - Poka Yoke KW - health KW - safety KW - Safety-I KW - Safety-II KW - safety capacity KW - mindset KW - resilience engineering. 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/2528/pdf L2 - http://iglc.net/Papers/Details/2528 N1 - Export Date: 19 June 2026 DB - IGLC.net DP - IGLC LA - English ER -