Automatic Generation of a Daily Space Schedule

Adam G Frandson1 & Iris D. Tommelein2

1Graduate Student, Civil and Environmental Engineering Department, Univ. of California, Berkeley, CA 94720-1710, USA, Phone +1 (510) 642-3261, [email protected]
2Professor, Civil and Environmental Engineering Department, and Director of the Project Production Systems Laboratory (, 212 McLaughlin Hall, Univ. of California, Berkeley, CA 94720-1712, USA, Phone +1 (510) 643-8678, [email protected]


Construction team members who develop and analyze a schedule for production must identify workflows, solicit trade partner input to look for opportunities for improving production, identify production constraints, and communicate the schedule to craftsmen in the field. To clarity field work, such schedules must consider the resource ‘space.’ Space scheduling helps to visualize a critical path method (CPM) schedule or a line of balance (LOB) schedule developed using a location-based management system (LBMS). Additionally, production team members need to keep their schedules current. To address these needs, this paper presents a program to quickly generate and adjust a visual space schedule, by project phase. This provides the production team with a visual control mechanism, a means to perform space conflict and sensitivity analysis during planning, a means to track daily goals during execution, as well as a starting point for more detailed 4D CAD analysis. The researchers developed their space scheduling program during planning and are currently using it in the construction of an urgent care center at an existing hospital in northern California. 20 out of 146 days (14% of the scheduled duration) were identified in the space schedule as potential savings and 12 of those days have been realized thus far. Expected results of this implementation are improved productivity due to detailed space scheduling and the daily goal setting; increased communication between trades when they need to negotiate impinging for some time on the space assigned to another trade; and an increased awareness of the work flow at a daily level by trade partners due to the visual schedule. This results in greater predictability of the project’s delivery


Location-based scheduling, space scheduling, takt-time planning



Frandson, A. G. & Tommelein, I. D. 2014, 'Automatic Generation of a Daily Space Schedule' In:, Kalsaas, B. T., Koskela, L. & Saurin, T. A., 22nd Annual Conference of the International Group for Lean Construction. Oslo, Norway, 25-27 Jun 2014. pp 617-626

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