Feasibility study on flood mitigation strategies using river basin management

这项研究的目的是探讨采用流域管理的洪灾减灾战略的可行性，以及有效和可持续的洪灾对策及其实施计划。调查表明，在日本人口密度最高的东京和大阪地区，土地使用和建筑法规的社会效益都超过了成本，表明上述法规策略作为应对洪水灾害的对策具有一定的适用性。成本收益分析的结果还表明，监管策略对低收入群体的影响要大于高收入群体。

The aim of this study is to investigate feasibility of flood mitigation strategies using river basin management and effective and sustainable countermeasures for flood disasters as well as its implementation plan. The investigations showed that the social benefits of landuse and building regulations exceeded the costs in both Tokyo and Osaka regions, which are the highest population density areas in Japan, indicating that the above regulation strategies have a degree of applicability as a countermeasure for flood disasters. The result of the cost-benefit analysis also shows that the impact of the regulation strategies on a low income group would be greater than higher income groups.