Automatic work package sizing for cost-effective modular construction

Zisheng Liu

doi:10.1016/j.autcon.2023.105003

Automatic work package sizing for cost-effective modular construction

2023-10-01

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DOI：10.1016/j.autcon.2023.105003

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Abstract

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The accurate determination of work package size is crucial for cost reduction and achieving efficient mass production in modular construction (MC) projects. However, effectively balancing sizing and cost poses a sig-nificant challenge due to the absence of a precise trade-off method. This paper describes an automatic work package sizing (AWPS) method in MC production to optimize work package sizing while minimizing costs. First, the multi-stakeholders-oriented MC production process is modeled to identify the tasks in MC production. Sec-ond, critical factors affecting the size of work packages are identified and analyzed. Then, a dynamic pro-gramming algorithm is developed to merge the tasks to work packages at a minimal cost. The AWPS method is validated in a case study, and the results show that the AWPS can effectively package production tasks while reducing costs by 1.28%-16.25% compared with traditional task-organizing methods.

Keywords:

Work package

Modular construction

Cost management

Dynamic programming

Automatic work package sizing for cost-effective modular construction

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