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Landslide Susceptibility Assessment using Analytical Hierarchy Process in West Java (1) Master Program of Geodesy and Geomatics Engineering, Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Bandung 40132, Indonesia Abstract Landslides are the most frequent natural disaster on West Java with around 2,354 occurrences in 1998 - 2024, This is about 36% of the total number of natural disasters in West Java. This disaster caused almost 1,000 fatalities and more than 19,500 infrastructure damage. Landslide susceptibility modeling can be implemented as a basis for landslide risk modeling in Java Island for mitigation purposes. This research aims to assess landslide susceptibility in West Java and evaluate it based on historical landslide occurrence data. The methodology used for the landslide susceptibility model is based on the analysis hierarchy process method that can provide an assessment of landslide susceptibility based on expert judgment. Meanwhile, the methodology used for landslide susceptibility model evaluation is receiver operating characteristic (ROC) curve analysis, conducted by comparing the landslide susceptibility model with landslide occurrence data to obtain the area under the curve (AUC) value that shows the performance of the method to build a landslide susceptibility model. As many as seven landslide controlling factors were used to generate the susceptibility model: slope, aspect, land cover, rainfall, peak ground acceleration (PGA), and distance from fault and river. Keywords: Landslide Susceptibility- Analytical Hierarchy Process- ROC Curve- West Java Topic: Interdisciplinary Earth Science and Technology |
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