Range, capacity, and closest evacuation route analysis to tsunami evacuation shelter in Pandeglang Regency Banten Indonesia

The Regency of Pandeglang is an area prone to tsunami, so the development of disaster preparedness and mitigation system needs to be done. This study aims to analyze the range of the evacuation shelter, calculate the capacity that can be accommodated by the evacuation shelter, and to identify the closest route to the evacuation shelter in Pandeglang Regency. The study was conducted from March until May 2020. The analysis of tsunami hazard zones shows that area of tsunami hazard zone is 579.68 km2, and located in sub-districts bordering the West Coast and the South Coast. There are 28 evacuation shelter in Pandeglang Regency. The analysis of the range of evacuation shelters showed 52.21% of the tsunami hazard zones were covered, while 47.79% were still beyond the range of the evacuation shelters and tsunami safe zones. The results of shelter capacity analysis showed that the evacuation shelter in Pandeglang Regency could only accommodate 44661 refugees. Pandeglang Regency needed at least 64 new evacuation buildings that can accommodate a minimum of 2592 refugees per shelter. This study identified 38 closest routes to tsunami evacuation shelter and tsunami safe zones in Pandeglang Regency.