Analytical hierarchy process method for mapping landslide susceptibility

Date

2023-1

Type

Article

Journal title

Asian Journal of Earth Science

Issue

Vol. 1 No. 5

Author(s)

Tareq Hamed Mezughi

Pages

13 - 25

Abstract

Abstract In this study, the analytical hierarchy process (AHP) method was used to produce a landslide susceptibility map for an area located in the central northern part of Peninsular Malaysia. The study was carried out using remote sensing data, field surveys, historical data and geographic information system (GIS) tool. eleven factors that influence the occurrence of landslide were chosen for this study: slope gradient, slope aspect, curvature, distance from road, drainage density, lithology, foliation dip, topographic/bedding relationship, lineament density, soil, and rainfall. The landslide susceptibility index (LSI) was computed from the combined weighed thematic maps of factors based on the assigned weights and ratings given by the AHP method. The AHP results were verified with existing landslide locations, which yielded the accuracy rate of 80.90%. Hence the landslide susceptibility map generated with the AHP method is useful for preventing or minimizing possible landslides and could be adopted in the proper planning for land use and construction in the future.