Enhancing construction safety through UWB-IMU fusion, BIM integration, and game engine technologies for proactive hazard mitigation

This study proposes an integrated framework that combines ultra-wideband (UWB) and inertial measurement unit (IMU) sensor fusion with Building Information Modeling (BIM) and real-time 3D visualization using the Unity game engine to enhance construction site safety monitoring.The system addresses major risks such as falls, collisions, and entrapments through dynamic tracking, immersive visualization and automated hazard analysis.UWB positional accuracy is improved through IMU integration and Kalman filtering, enabling stable localization even in complex indoor environments.The Revit-based BIM model is imported into Unity for real-time hazard simulation, utilizing physics-based collision detection with Axis-Aligned Bounding Boxes (AABB).The resulting digital twin environment shifts safety management from reactive to predictive, contributing to more innovative, safer, and sustainable construction practices.