Management and vulnerability analysis of the existing built-up area in the Pangandaran coastal area to the tsunami disaster

Abstract

The rapid development of the coastal area for settlement and commercial service could increase vulnerability to natural hazards. This study aimed to analyze the settlement development management in the coastal area of Pangandaran Regency of West Java toward tsunami disaster risk mitigation. This study is essential because Pangandaran coastal area faces directly toward the subduction zone between Indo-Australian and Eurasian plates, which lead to tsunami hazard. For vulnerability analysis, spatial analysis was done through existing buildings and spatial planning documents. Recommendation for future management and mitigation to minimize tsunami impact on residential areas was formulated. The results showed that commercial and service zone dominated the land use in Pangandaran coastal area, followed by low-density residential zone, community forests, and mixed-use zone. The spatial analysis also showed that the existing land-use and spatial planning document did not consider the tsunami disaster risk. Hence, our recommendation provided the possible design solution for every potential impact of tsunami and mitigation approach to reduce vulnerability.