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.
