2019 Volume 75 Issue 2 Pages I_137-I_156
The Bridge maintenance plan is formulated taking into consideration the deterioration factors that affect the durability of the bridge and the environment and usage conditions. However, it is up to the local government to decide how much the natural disaster risk is considered. From the point of view of natural disaster risk, it is useful to refer the repair plan information of the local governments with similar environment and usage conditions among the local governments when improving the repair plan. In this study, it will be calculated unified natural disaster risk indicators that can be reflected in the bridge maintenance plan for each prefecture. Natural disaster risk indicators are expressed as a combination of exposure, vulnerability and resilience. By referring to this unified index, it is possible to compare the degree of impact of natural disaster risk in the bridge longevity repair plan of the concerned maintenance management organization with other local governments. And it is expected to be effective in the review of repair plans from a new perspective such as improvement of resilience.
