<Abstract>In this paper, to support decision making in bridge maintenance, an approach by damage hierarchy analysis is proposed. Firstly, by ISM, the relations between causes and effects of bridge damages are described as hierarchy. Secondly, each link of hierarchy is given a numerical value as the influence of damage factor, and analysis is made by SAD. Finally, the repair alternatives are evaluated by AHP. The presented approach is realized by successive application of different analysis method to a problem on a personal computer system. |