TY  - CONF
TI  - Development of a Space Constraint Management Ontology for Lean Construction: Enhancing Constraint Management in Steel Fabrication Projects
C1  - Osaka and Kyoto, Japan
C3  - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33)
SP  - 1035
EP  - 1045
PY  - 2025
DO  - 10.24928/2025/0196
AU  - Mao, Zeyu
AU  - Ahmad, Rafiq
AU  - Hamzeh, Farook
AU  - Gonzalez, Vicente A.
AD  - PhD researcher, Faculty of Engineering - Civil and Environmental Engineering Department, University of Alberta, Alberta, Canada, zmao5@ualberta.ca, https://orcid.org/0000-0002-1115-7842
AD  - Associate Professor, Faculty of Engineering - Mechanical Engineering Department, University of Alberta, Alberta, Canada, rafiq1@ualberta.ca, https://orcid.org/0000-0001-9353-3380
AD  - Professor, Faculty of Engineering - Civil and Environmental Engineering Department, University of Alberta, Alberta, Canada, hamzeh@ualberta.ca, https://orcid.org/0000-0002-3986-9534
AD  - Professor and Tier 1 Canada Research Chair in Digital Lean Construction, Faculty of Engineering - Civil and Environmental Engineering Department, University of Alberta, Alberta, Canada, vagonzal@ualberta.ca, https://orcid.org/0000-0003-3408-3863
ED  - Seppänen, Olli 
ED  - Koskela, Lauri 
ED  - Murata , Koichi 
AB  - Effective constraint management is critical for the successful implementation of the Last Planner System (LPS), particularly during the lookahead planning phase. However, space-related constraints are not well represented in current LPS implementation. This paper addresses this gap by introducing a Space Constraint Management Ontology (SCMO) to represent and manage the intricate spatial management constraints during construction tasks. The SCMO is developed using the Ontology 101 methodology, an accessible and feasible methodology for building ontologies through a well-structured seven-step process. Afterwards, the SCMO is applied in the context of a steel fabrication project. SCMO conveys steel fabrication logistics and space-related concepts, including safety distances between factory entities, following Alberta's Occupational Health and Safety regulations. This study advanced the constraint management process in current LPS practices, offering a valuable knowledge base for improving space management efficiency and safety in construction sites.
KW  - Lean construction
KW  - constraint management
KW  - semantic web
KW  - ontology
KW  - steel fabrication.
PB  - 
T2  - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33)
DA  - 2025/06/02
CY  - Osaka and Kyoto, Japan
L1  - http://iglc.net/Papers/Details/2369/pdf
L2  - http://iglc.net/Papers/Details/2369
N1  - Export Date: 02 June 2025
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -