Built-in Disaster Mitigating Urban Management of Hillside Towns

冈田和他的研究合作者为这个项目提出了一个新的观点，即希尔赛德城镇的内置减灾城市管理。根据山坡城镇的地理、环境和社会经济特点，对这些城镇进行了分类。基于这一观点，以长崎市和科比市为例，确定了希尔赛德城镇的原型，并进行了建模。冈田和杉万合作，对长崎市进行了实地调查，收集了分析所需的信息和数据。此外，为了从政策的角度分析长崎市的管理和防灾对策，两位领导共同构建了分析模型。具体而言，进行了协调发展利益与减灾利益的冲突分析。作为相关研究，冈田等人开发了“稳健性分析”方法，该方法被证明是处理模型参数确定中的不确定性的强有力的分析工具。此外，还对遭受神户大地震的坂神地区进行了研究。值得注意的是，我们新的研究视角同样适用于这一地震灾区。Sugiman对该地区进行了实地调查，特别关注社区和志愿活动的作用。一种利用“群体动力”的方法有助于确定对社区和志愿团体减灾管理的政策影响。

A new perspective of built-in disaster mitigating urban management of hillside towns has been proposed by Okada and his research collaborators for this project. A taxonomy of hillside towns has been created with reference to their geographical, environmental and socio-economic characteristics. Based on this perspective, prototype hillside towns have been identified and modeled for the case study cities of Nagasaki and Kobe.Okada and Sugiman have collaborated in the field survey of Nagasaki City and collected information and data needed for the analysis that followed. Hagihara and Okada jointly worked to build analytical models to derive policy implications for the management of Nagasaki City with disaster mitigation duly built in. Specifically, a conflict analysis has been made to coordinate developmental interests with those of disaster mitigation.As a related study, the method of "robustness analysis" has been developed by Okada et al and it has been shown to be a powerful analytical tool to deal with uncertainties involved in identifying model parameters.Further research has been conducted to study the Hanshin Region which suffered from the Great Hanshin Earthquake. It has been noted that our new research perspective also applies to this earthquake-stricken region. Sugiman has carried out a field survey of the region, with a particular focus on the roles of communities and voluntary activities. An approach by use of "group dynamics" helped identify policy implications for the management of community and voluntary groups for disaster mitigation.