Strategies For Determining Priority Area For Mitigation Of Landslide Disaster In Semarang City

The purpose of this study is to examine how to determine priority areas for an implementation of landslide mitigation based on disaster risk assessment in Semarang city Central Java. The results of the interviews with the employees of BPPD Semarang city indicate that in mitigation landslide disaster to the sub-district level or to the village, officers do not have clear guidelines on which region should be socialized about landslide disaster first or as a priority. To determine the level of landslide risk variation, there needs to be threat data, vulnerability and community capacity. The availability of threat data, vulnerability, and community capacity is useful in determining priority areas for disaster mitigation implementation. Analytical technique used in this research is map overlay with ArcGIS 10.3 program. Data on threats, vulnerabilities and community capacities are mapped, then overlaid to produce landslide risk maps. Furthermore, landslide risk maps are covered with population density maps or settlement density maps to obtain priority areas for landslide mitigation. Areas with a very high risk of landslide disaster occupy the priority 1, followed by areas with the high landslide risk as priority 2 and areas with the risk of landslide disaster are in the 3rd priority.