Process-Oriented Framework to Improve Modular and Offsite Construction Manufacturing Performance

The construction industry has strived for higher productivity in the last several decades, which has resulted in innovations and improvements, including methodologies, tools, and machines. By moving work from on-site to off-site, the objective is to use the workforce and machinery in a controlled environment without external interference for higher productivity and quality. However, the construction manufacturing domain may not benefit fully from modular construction and lean implementation when employing the stick-built under a roof method, which follows a similar construction process as the conventional on-site construction approach. This paper introduces a process-oriented framework which integrates value stream mapping (VSM) with a production line breakdown structure (PBS) to analyze current production line performance using key performance indicators (KPIs), assess the proposed solution for improved performance, and visualize the future implementation of the proposed solution on a construction manufacturing production line.