431 / 2019-02-27 17:31:55

Long-term Management System for Multiple Bridges Considering Road User Cost

life cycle cost, traffic assignment, road user cost, asset management

全体主题 > Planning Support Systems

In the long-term management for bridges, it is necessary to consider not only repair cost but also road user cost. In this paper, it aims to construct a system of long-term management for multiple bridges considering road user cost. For the purpose, we develop the management system combing bridge deterioration model and traffic assignment model. Moreover, it is applied to evaluate the management scenarios for multiple bridges with life cycle cost considering residual value. As a result, we can clearly recognize that road user cost is important for management, since it amounts almost half of the repair cost. Furthermore, it is confirmed that the combined management scenario is more suitable as a long-term management plan for bridges than the post management scenario, though the repair cost and road user cost is estimated larger only at the initial period.