INDEX AND RISK LEVEL OF LANDSLIDES ON ROAD AND BRIDGES LOCATED ON NATIONAL ROADS (CASE STUDY: KERINCI DISTRICT AND SUNGAI PENUH CITY, JAMBI PROVINCE)

The regency of Kerinci and The city of Sungai Penuh are among the areas proneto landslides, which can impact roads and bridges on national roads. This studyaims to determine the index and risk level of landslides on roads and bridgeslocated on national roads in both regions. The index and risk level assessmentarecarriedoutbyanalyzingdisasterriskfactors,namely: hazard,exposure,vul-nerability, external context and capacity. Assessment methods and variablesare taken based on the Guidelines for the Implementation of Risk Analysis forNatural Disasters Affecting Roads and Bridges. The mapping of landslide riskbased on the Geographical Information System (GIS) is compiled based on scor-ing and weighting all parameters, as well as an overlay among all constituentparameters. Based on the sampling results of ten samples of national roadsections in the Kerinci Regency and Sungai Penuh City, the risk level of haz-ard, exposure, vulnerability, external context and road management capacity isdivided into two classes, namely the Low class about 7.19 km (= 8.72 %) withseven short roads located within the city and the Medium class, which is 75.31Km (= 91.28 %), with three roads connecting the cities.