Abstract
The elevated highway bridges intensively developed during the high economic growth period are now becoming deteriorated over time all together. This requires a maintenance technology to preserve highway functions systematically. To make a systematic maintenance plan, it is essential to grasp the present condition of road surface. This requires a route survey by taking some measures such as temporary suspension of traffic, though it is not easy. This study proposes a method for creating three-dimensional (3D) current state drawings that keep information such as road centerlines and are usable for maintenance on the superstructure of highway bridge by performing a route survey with a mobile mapping system (MMS). Our demonstration experiments verify the validity in making a maintenance plan with current state drawings in comparison with the existing materials such as final drawings of construction works.
