https://doi.org/10.24928/2017/0156
Project Flexibility and Lean Construction
Glenn Ballard1 & Hajnalka Vaagen2
1Dr. Ballard is Research Director for the Project Production Systems Laboratory at the University of California Berkeley. [email protected]2Dr. Vaagen is Associate Professor at the Norwegian University of Science and Technology, dept. of Ocean Operations and Civil Engineering. [email protected]
Abstract
The Last Planner system was initially focused only on production control functions, trying to improve the match between SHOULD and CAN, CAN and WILL, and WILL and DID. A partial specification of SHOULD was introduced into Last Planner practice in 1998 with the pull planning of phase schedules. The next logical extension of Last Planner is to the planning of master schedules and the project execution strategies of which they are a part. One of the key elements in that extension is managing variation, both negative and positive (risks and opportunities). This paper offers a framework for managing variation. Subsequent papers will apply that framework in processes for producing project execution strategies and master schedules.
Keywords
Lean construction, Uncertainty, Flexibility
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Reference
Ballard, G. & Vaagen, H. 2017. Project Flexibility and Lean Construction, 25th Annual Conference of the International Group for Lean Construction , 589-596. doi.org/10.24928/2017/0156
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