地理情報を利用した斜面都市の地震災害ポテンシャル評価 : 長崎市を事例対象として

概要

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With seventy percent of its area composed of mountains and hills, Japan has many hillside cities. The risk assessment of such hillside cities for seismic vulnerability has to be made from many more viewpoints than that for flat-land cities. For instance, severe ground quakes on hills, slope landslides and difficulties in evacuation are to be taken into account. So, this present paper is focused on the construction and use of a GIS database with its various parameters regarding hillside cities. The paper attempts to assess risks of slope failure, liquefaction and site effects and overlay the risk data on information about the distribution of housing, public facilities, and population, among others. The paper thereby seeks to evaluate the vulnerability of slope cities to earthquakes.
1996-12-30