Integration of Building Information Modeling (BIM) with Lean Scheduling Methods

Abstract

Over the last 50 years, the Architecture, Engineering & Construction (AEC) industry's productivity has declined by nearly 20%, while other sectors have seen a growth of over 150%. This research explores the integration of Building Information Modeling (BIM) with Lean Scheduling Methods to improve project planning and execution in the AEC industry. By leveraging BIM capabilities, the study seeks to overcome barriers to implementing lean construction practices, with the goal of optimizing resource use and streamlining construction processes.(Agenda 2016). The methodology involves a comprehensive approach, beginning with a literature review and questionnaire survey to identify barriers in lean construction and corresponding BIM solutions. A Takt Time Plan framework is then developed based on expert opinions to optimize project planning. A case study validates the proposed approach, involving the creation of a BIM 3D model and extraction of activity lists for scheduling. A key aspect of the methodology is the development of a Dynamo script integrated into a Revit plugin, facilitating seamless data collection and activity sequencing directly from the BIM model. This scripting approach enhances efficiency in project planning and execution. The study compares the efficacy of Takt Time planning with conventional Critical Path Method (CPM) through Navisworks simulations. Results show that Takt Time planning significantly reduces project duration up to 35% and enhances efficiency by enabling simultaneous execution in multiple zones. In conclusion, the research highlights the benefits of integrating BIM with lean scheduling methods, including improved efficiency, enhanced project planning, and digitalization of the construction sector. Future recommendations include exploring dynamic scheduling strategies, integrating advanced technologies like AI and IoT, and focusing on specific construction procedures for further optimization.