マニラ近郊の住宅地での建物ポリゴンデータを用いた地域特性の分析に基づく地震時死者数の推定

概要

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A CIS database for seismic damage risk assessment was built in and around Marikina city, a suburb bedroom town of Metropolitan Manila. Building shape polygon data were available to measure building characteristics, as a layer of topographic CAD data which was digitized on 1:10000 scale of aero photos. Buildings were classified into two types of residence overlaying the existing land use map; high dense housing and standard one. Those residential zones were found to have different trends of building density and histogram of building area. The seismic resistant qualities of the buildings were evaluated based on such regional characteristics. Vulnerability curves of GESI method to the building groups were decided and total number of casualties in the city was estimated at about 1900 people.
地域安全学会の論文