A PRODUCTION METHOD OF LANDSLIDE HAZARD MAP BY COMBINING LOGISTIC REGRESSION ANALYSIS AND AHP (ANALYTICAL HIERARCHY PROCESS) APPROACH

  • Lee, Yong-Jun (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Park, Geun-Ae (Dept. of Department of Rural Engineering, Konkuk University) ;
  • Kim, Seong-Joon (Dept. of Civil and Environmental System Engineering, Konkuk University)
  • Published : 2006.11.02

Abstract

This study is to suggest a methodology to produce landslide hazard map by combining LRA (Logistic Regression Analysis) and AHP (Analytic Hierarchy Program) Approach. Topographic factors (slope, aspect, elevation), soil drain, soil depth and land use were adopted to classify landslide hazard areas. The method was applied to a 520 $km^2$ region located in the middle of South Korea which have occurred 39 landslides during 1999 and 2003. The suggested method showed 58.9 % matching rate for the real landslide sites comparing with the classified areas of high-risk landslide while LRA and AHP showed 46.1 % and 48.7 % matching rates respectively.

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