IMPROVEMENT OF OPERATIONAL EFFICIENCY ON ROAD SURFACE CONTROL USING 3-D MEASUREMENT DEVICES

Abstract

 An improvement in operational effort of 3D measurement devices for ICT Paving Works is required because the measurement accuracy depends on the device used and the computer program for analyses, and the application of point cloud data is limited to construction quality control. This study proposes the facilitation of the data treatment of 3D point cloud data measured by a Terrestrial Laser Scanner (TLS) and an Unmanned Aerial Vehicle (UAV) which are equipped with a high-performance Global Navigation Satellite System (GNSS) with two navigation antennas. For the purpose of this study, road surface profiles of which measurement requires millimeter accuracy are acquired with the GNSS mounted 3D measuring devices. As a result, the proposed method allows accurate and efficient 3D data acquisition with setting the device coordinate and direction angle by optimizing the offset of two GNSS antennas. The findings of this study contribute to the efficiency improvement of operating 3D measurement devices by reducing some operational processes such as the target identification with achieving the same accuracy of conventional method.