緩和策の地域的な優先順位を反映した費用便益分析

概要

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To evaluate the optimum risk treatment for one year, Okazaki et al. had proposed a method that used cost-benefit analysis with the consideration of variance of losses. However, the term of mitigation often spans multiple years. Therefore, in this study, we proposed a method for evaluating the optimum mitigation for multiple years. In addition, to apply the suitable mitigation for multiple years, it is important to consider the prioritization of areas of mitigation. Prioritizing areas with the maximum potential for losses can lead to decreased expectation of losses during the period when mitigation is applied. Through the validation, we confirmed the method's efficacy in not only shortening the period for which mitigation is applied but also reducing the expectation of the annual total cost during the period.
地域安全学会の論文