中小河川群の氾濫水理解析に基づく地域防災力向上戦略の検討

抄録

This paper proposes a strategy to enhance the regional resilience for flood disaster in Shiga Prefecture, Japan. First, we evaluates on-site flood risk through 2D analysis of various floods such as 10-, 30-, 50-, 100-, 200-, 500- and 1000- year flood. Flood risk is explained in four indexes, “Probability of the Inundation above the Floor / Roof Level”, “Probability of the House Destruction” and “Expected House Damage Level”. Then the risk reduction abilities of the communities are estimated using the diagnostic system provided by the Cabinet Office, Japan. Appropriate measure for each community are picked up considering the flood risk indexes. The priority of measures implementation is organized from the ranking table of the preventation ability. Thus the strategy to improve regional resiliency is clarified.