7th Annual Conference of the International Group for Lean Construction - Berkeley, California, USA - 1999

Space Scheduling Using Flow Analysis

Hyun Jeong Choo1 & Iris D. Tommelein2

1Ph.D. Student, Constr. Engrg. and Mgmt. Program, Civil and Envir. Engrg. Dept., 215 McLaughlin Hall #1712, Univ. of California, Berkeley, CA 94720, [email protected]
2Associate Professor, Constr. Engrg. and Mgmt. Program, Civil and Envir. Engrg. Dept., 215 McLaughlin Hall #1712, Univ. of California, Berkeley, CA 94720, [email protected], tel: 510/643-8678, fax: 510/643-8919.

Abstract

WorkMovePlan combines the Last Planner methodology, implemented in the WorkPlan software, with space scheduling. This allows the Last Planner to not only specify labor and equipment but also space as an explicit resource. WorkPlan guides the user step by step to plan work for the week ahead through the process of spelling out work packages, identifying constraints, checking constraint satisfaction, releasing work packages, and allocating labor and equipment; then at the end of the week, collecting field progress data and reasons for plan failure. WorkMovePlan extends these capabilities by allowing a user to specify site space needs on a day-to-day basis for labor, equipment, and materials in terms of work-, laydown-, or staging area as needed throughout the execution of a work package. WorkMovePlan also makes it possible for the user to designate the flow path that will be followed during movement. This user data then serves as input to simulate traffic on site. Output of the simulation helps the user assess the feasibility and desirability of traffic flow paths and thereby gauge the quality of a work sequence. This systematic approach helps the user create quality work plans and learn from understanding reasons for failure. The functionality of WorkMovePlan is detailed in this paper.

Keywords

Last Planner, WorkMovePlan, WorkPlan, weekly work plan, database, lean construction, work package, constraint, layout planning, space scheduling, materials management, simulation, flow.

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Reference

Choo, H. J. & Tommelein, I. D. 1999. Space Scheduling Using Flow Analysis, 7th Annual Conference of the International Group for Lean Construction , 299-312. doi.org/

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