Evacuation Route Mapping Based on Tsunami Hazard Area on Sawarna Tourist Village, Bayah, Lebak

Abstract

Sawarna Village is a tourism village located on the southern coast of Lebak Regency, Banten and directly facing the Indonesian Ocean. The geographical location of Sawarna village might potentially affected by earthquake and tsunami disaster. Beside the local residents, tourists are also affected by the earthquake and tsunami. This research aims to determine the areas affected by the tsunami disaster and determining the evacuation route, especially the pathway from the location of attractions. Data obtained from the images of DEM IFSAR and Google Earth as well as field survey results. GIS analysis network was used as data analysis technique. The result showed the tsunami’s hazard area in Sawarna Village covers about 347.62 Ha, with a high risk level of 270.38 (77.78%). The tsunami hazard area covers all the sights and settlements along the coast, south of the village road and the border of the river. The evacuation direction of the tourist objects is straight away from the beach but away from the river. Meanwhile, the direction of evacuation in the settlement follows the road and away from the river to the nearby hill.