TY - CONF TI - Proactive Approach for Reducing Non-Value Adding Activities Due to Time-Space Conflicts AU - Akinci, Burcu AU - Fischer, Martin AU - Zabelle, Todd AD - Graduate Res. Assistant, Dept. of Civil and Environmental Engineering, Stanford University, CA 94305-4020, USA, akinci@leland.stanford.edu. AD - Assistant Professor, Dept. of Civil and Environmental Engineering, Stanford University, CA 94305- 4020, USA, fischer@cive.stanford.edu. AD - President of Pacific Contracting Engineers, Inc., 221 Main Street, Suite 1560, San Francisco, CA 94105-1934, trz@pacificcontracting.com. PY - 1998 DA - 1998/08/13 T2 - 6th Annual Conference of the International Group for Lean Construction C3 - 6th Annual Conference of the International Group for Lean Construction CY - Guarujá, Brazil AB - Time-space conflicts are one of the major causes of productivity losses at construction sites, and they are preventable and manageable if identified prior to construction. Current industry practice and project management tools and techniques do not support proactive time-space conflict management. Our research focuses on formalizing and automating time-space conflict analysis to assist construction managers to proactively manage spatial conflicts between activities at their sites. In this paper, we describe a case that highlights the challenges involved in time-space conflict analysis and discuss an initial framework showing the factors that determine the schedule impacts of spatial conflicts between activities. Using the presented framework, a construction manager can assess the type of a time-space conflict and predict the schedule impacts of spatial conflicts. Realizing the schedule impacts of time-space conflicts before they occur at a construction site, s/he can proactively manage spatial conflicts between activities and eliminate non-value adding activities that occur at construction sites due to time-space conflicts. KW - Time-space conflicts KW - space management at construction sites KW - work space requirements of activities KW - schedule analysis. L1 - https://www.iglc.net/papers/details/33/pdf UR - https://www.iglc.net/papers/details/33 DB - IGLC.net LA - English N1 - Export date: 04 October 2026 ER -