538 / 2019-02-28 20:21:46

Optimization of Regulation Zones in Tsunami-prone Areas with Consideration of Short- and Long-term Impacts

tsunami,optimization analysis,disaster mitigation,zoning

全体主题 > Planning Support Systems

The designation of land-use and building regulation zones in tsunami-prone areas is a commonly recommended strategy to ensure disaster risk reduction. While this may be true, citizens often remain wary of such strategies, especially in regions where coastal tourism is the pri-mary industry, and/or the rurally located coastal areas are facing prob-lems of ageing and depopulation. To allow for agreeable zone setting in such situations, it is required that we consider all the conflicting aims and perceptions. In particular, we must consider a zoning alloca-tion that maximizes the future safety of the region while minimizing any negative impact on the local economy. This research constructs an optimization model which takes into account the differing risk- and economic geography of the region as well as its re-development speed, to suggest optimal zoning strategies. The model is further extended with spatial constraints and evaluated with a hypothetical scenario to make the outputs usable for decision-making.