Visualization and centralized management of progress using 3D data at large-scale construction sites

Abstract

The purpose of this study was to improve the efficiency of construction management operations by centrally managing progress at large-scale construction sites and sharing progress data within the construction site. A prototype was developed to centrally manage three-dimensional point cloud data using a terrestrial laser scanner, a UAV-mounted camera, and a high-altitude camera. Furthermore, a method was devised to visualize changes in geometry using a time axis by assigning time information to three-dimensional point cloud data measured at different times, and a method to visualize construction progress quantitatively by analyzing differences in progress between superimposed three-dimensional point cloud data. Finally, we proposed a use case for an information system. The users are assumed to be the site manager and the contractors at each construction site. The site manager checks the progress status and three-dimensional data of each construction site through the system.