Estimation of elderly people residents distribution and damage amount in landslide disaster area

2014 Fiscal Year Final Research Report

• Project/Area Number: 24501294
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geography
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: NAKAYAMA Daichi 首都大学東京, 都市環境科学研究科, 助教 (90336511)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 自然災害 / 土砂災害 / 災害の被害予測 / 人口分布 / 高齢者 / 災害弱者

Outline of Final Research Achievements

We proposed new methods which estimate population distribution taking into account of building distribution in steep slope area. Method 1 estimated population distribution based on using number of residents and Method 2 estimated population distribution based on 3 types of resident categories. Comparing estimated population using each method, there were statistically significant differences between the results from conventional method and those from proposed methods. The proposed methods can estimate population exactly reflecting the density of buildings on the steep slopes.
We verified the estimated population in the steep slope collapse hazard area using building data. The result of the proposed population estimation methods reflects the actual population distribution much better than that of the conventional method. The estimated population around the steep slope areas from the proposed methods was useful information to evaluate each steep slope.

Free Research Field

地理学