Basic study on priority of bridge maintenance and management using detour calculation

Abstract

The purpose of this study is to grasp characteristics of each local governments and to utilize for bridge maintenance and management by analyzing of whether existence or distance of bridge detour. Bridge detour is calculated from program that applied the Dijkstra’s algorithm. As a result, it found that tendency of bridge detour condition in each area and correlation with inhabitable area. Some incorrect data found from detour program. However, it can be an indication for understand characteristics of each local governments and social condition of bridge maintenance and management. Online map site constructed with about 23000 bridges detour data displayed on map in Niigata prefecture area.