BIM-Based Coordination Systems for Reducing Rework in Commercial Construction

Commercial construction projects frequently experience rework due to design conflicts, communication gaps, fragmented information management, and inadequate coordination among project stakeholders. These issues contribute to schedule delays, cost increases, productivity losses, and repeated construction activities. This study presents a BIM-Based Coordination System (BBCS) for reducing rework in commercial construction projects through integrated model coordination, centralized information management, automated clash detection, and structured communication workflows. The framework combines architectural, structural, and MEP models within a Common Data Environment (CDE), creating a shared source of project information for multidisciplinary project teams. The methodology consists of BIM coordination environment development, clash detection and analysis, communication workflow management, rework assessment, and framework validation. Performance evaluation was conducted using indicators including clash resolution rates, rework incidents, communication efficiency, schedule delays, and construction productivity. The results showed notable improvements across all evaluated measures. Resolved clashes increased from 156 to 243, communication efficiency rose from 68% to 89%, and construction productivity increased from 74% to 92%. Rework incidents decreased from 82 to 29, while schedule delays declined substantially. The findings indicate that coordinated BIM workflows can reduce design conflicts, limit field modifications, improve project communication, and support more reliable project delivery in commercial construction environments.