Visualized construction process on virtual reality

The proposed construction process visualization system (4D-VR, 4 Dimension Virtual Reality) is applied to a large and complicated project that requires milestone schedule management and detailed activity control. The 4D-VR has a software structure with five modules, which are 3D CAD modeling, virtual reality modeling, schedule data processing, linking graphic data with schedule data, and visualization output modules. A field application has been carried out on 4D-VR for a 27-story complex building project for an apartment and commercial store in Korea. After analyzing the case, we conclude that the 4D-VR system can enhance communication between managers and workers, and help a project manager to reasonable decision making for establishing the schedule. Moreover, 4D-VR is effective for shortening the schedule, showing the exact construction process and making various presentations to co-workers related to the project. This paper shows the status of 4D-VR technology in Korea and how to use it in a real project.