Analisis Tingkat Bahaya Longsor pada Jalan Nasional untuk Prioritas Penanganan dengan Metode AHP: Studi Kasus Jalan pada Satker PJN III dan PJN IV

Abstract

Landslides are a very dangerous threat to the roads. Good management is required to prevent the problems occurring from extensive possible landslides. This is because the number of potential landslide points on the National roads are numerous. Maintenance and prevention are crucial to keep these disasters from occurring. Therefore these need to be a priority. The locations in question are: The National Road in the Provence of North Sumatra, the area of Satker PJN Ill (Satuan Kerja Pelaksanaan Jalan Nasional III) and The Satker PJN IV (Satuan Kerja Pelaksanaan Jalan Nasional IV). There are 26 roads in the Satker PJN III and IV areas with 34 that have occurred. The method that is used in this study is the AHP (Analytical Hierarchy Process). Method using two stages: The first stage is to analyze the level of landslide hazard on the road. The second stage is to determine the priority level for the handling of each landslide point for each section of the road. The parameters used determining the level of landslide hazard are: Soil, slope, landcover, rainfall, subgrade and drainage conditions, at the same time as using the landslide hazard perimeters, landslide dimensions, slope engineering and every day traffic