Analytic network process model for landslide hazard zonation |
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| Authors: | KM Neaupane M Piantanakulchai |
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| Institution: | aCivil Engineering Program, Sirindhorn Int. Ins. of Technology, Thammasat University, Thailand |
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| Abstract: | Various controlling factors such as lithology, slope angle, slope aspect, landuse, channel proximity etc. are generally considered for the landslide hazard assessment. Although outer dependence of these parameters to a landslide is inevitably taken into account, inter-dependence among the factors is seldom addressed. Analytic Network Process (ANP) is the multi-criteria decision making (MCDM) tool which takes into account such a complex relationship among parameters. In this research, an ANP model for landslide susceptibility is proposed, priority weights for each parameter controlling the landslide were determined, and a hazard map was prepared of an area in a fragile mountainous terrain in the eastern part of Nepal. The data used in the example were derived from published sources, aerial photographs and a topographic map. However, the procedures developed can readily incorporate additional information from more detailed investigations. |
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| Keywords: | Slope failure Landslide ANP Hazard zonation |
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