Abstract
Due to recent climate change, various types of natural disasters are occurring. In particular, coastal areas are expected to suffer intense damage due to high waves and tsunamis. Accordingly, when selecting a coastal risk zone for a Regional Hazard Mitigation Plan, various risk factors and terrain characteristics of the hazard area must be considered. In this study, we develop an algorithm for derivation of disaster prevention techniques and a decision support system (DSS). With this system, users can derive regional disaster prevention techniques based on risk factors and terrain characteristics of the target site. In addition, users can adjust efficiency, constructability, and publicity according to their planning intention and the priorities of the derived techniques. This system will be possible to help decision-making by deriving region-specific disaster prevention techniques for areas where composite coastal disasters are expected, helping effective establishment of Regional Hazard Mitigation Plan.
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