| Abstrak/Abstract |
Landslide is one of the most common disaster that occurs in Indonesia with meteorological and geomorphological factors as main factors. Purworejo is one of the potential area that could be experiencing landslides, because the geomorphological conditions which are included in Menoreh Hills are topographically sloping to very steep. Based on the Indonesian Disaster Information Data (DIBI) and the National Disaster Management Agency (BNPB) in the last five years from 2014 to April 2019 there have been 64 landslides in Purworejo. To reduce the impact of landslide, effective evacuation routes are needed. Determining of evacuation routes can be done in various methods, one of methods is use a spatio-cost approach. The purpose of this research is to determine the most effective evacuation routes to reduce the impact of landslide. Spatio-cost parameters obtained by certain paramaters include DEM (Digital Elevation Model) form ALOS Palsar Image, Vector Data (Shapefile) Land Use form interpretation data using SPOT 5 Image, Vector Data (Shape) Roads in Bruno Sub-districs using Indonesiaan Geospastial data with Purworejo Regency, Vector Data (Shape) Assembly Point using field surveying with Avenza Map, and Vector Data (Shape) Evacuation Point using field surveying with Avenza Map and all of the parameters are weighted form each method. Each parameter are processed to look for evacuation routes using Least Cost Path (LCP) method. The expected result of this research is evacuation routes that can help people around disaster-prone areas to prepare. This ongoing research is important to improve disaster management in Indonesia, especially for landslide in Bruno, Purworejo, Central Java. |
