Flood Vulnerability Mapping in South Cimahi Subdistrict Cimahi City Yackob Astor (a*), Iin Karnisah (a), Ainnaya Sajida (a), Hana Fitri Khairani (a)
(a) Department of Civil Engineering, Jl. Gegerkalong Hilir Ds. Ciwaruga, Politeknik Negeri Bandung, Indonesia
*yackobastor[at]polban.ac.id
Abstract
South Cimahi Subdistrict is an area that often floods in Cimahi City. Each village has been hit by floods. This is caused by several factors, namely: Cimahi City is a basin that slopes to the south, so that South Cimahi Subdistrict is at the lowest point of Cimahi City. South Cimahi Subdistrict is the largest area and has the largest population of other subdistricts. There is no clear and accurate information related to flood vulnerability in South Cimahi Subdistrict. Therefore, it takes a mapping of flood vulnerability at the village level in South Cimahi Subdistrict. To determine the level of flood vulnerability, several methods were carried out, namely: surveying of flood point locations, collecting of secondary data from various sources, scoring and evaluating the Flood Vulnerability Index referring to Regulation of the head of BNPB Number 2 of 2012 concerning General Guidelines for Disaster Risk Assessment, as well as making a Flood Vulnerability Map using ArcGIS 10.8. The results of this study are maps that describe 3 classes of flood vulnerability along with the value of the Flood Vulnerability Index per village, namely Cibeurem Village (High: 2.805), Melong Village (High: 2,590), Utama Village (Moderate: 2,415), Leuwigajah Village (Moderate: 2,230), and Cibeber Village (Low: 1,845). Verification of the mapping results is carried out by comparing the number of flood points, the distance of the flood point to the river, and comparison with the Cimahi City Flood-Prone Zoning Map in 2017. The comparison results show that the flood vulnerability classes in this study are not much different. The South Cimahi Subdistrict Flood Vulnerability Map is useful for the Cimahi City Government to formulate flood control solutions in each village in South Cimahi Subdistrict.
