2020 Volume 76 Issue 2 Pages I_47-I_59
The estimated tsunami inundation changed due to the regional development laws to prevent tsunamis enacted after the Great East Japan Earthquake. In cities facing the ocean, it is necessary to create urban planning considering population decline and aging society, and tsunami hazard risk.
This study aims to verify the hypothesis that tsunami countermeasures can reduce CO2 emission by the simple environmental impact simulation. Kochi City, Japan, which is estimated to have flooded most of the city's downtown area due to the tsunami, was selected as the case study area. This study distributed the questionnaire survey about housing choice in the future in the city.
The estimation result of CO2 emission supported the hypothesis. Also, quantitative analysis showed that tsunami countermeasures could reduce 11 percent/person/year in 2050.
