Project planning to support lean project management

Abstract

    Managing large-scale construction projects faces challenges related to waste in work processes, affecting project timelines and costs. Lean Construction has been adopted to minimize waste through continuous process improvement. This paper presents the application of the Critical Path Method (CPM) in construction planning to align with lean principles, using the Ministry of Interior’s government complex construction project as a case study. The findings indicate that CPM helps identify critical paths, reduce delays, and enhance the accuracy of work schedule planning and budgeting. Additionally, lean-based project management reduces unnecessary costs, improves cash flow alignment with project progress, and employs the PDCA cycle for continuous planning enhancement. These results contribute to more efficient project management, alleviate financial burdens on contractors, and optimize resource utilization. The study recommends that both public and private sectors develop project planning frameworks that incorporate lean principles from the outset and leverage digital technologies such as Building Information Modeling (BIM) to enhance planning accuracy and project monitoring.