2.4. Vulnerability modeling in GIS
Previously in the typical SVA model, the vulnerability assessment was determined based on questionnaire results. However, the SPRC model suggested the measurement of vulnerability caused by the flood by velocity, water level, and value (sensitivity) of an asset (Receptor sensitivity). According to Table 1, the factors used in asset vulnerability with similar studies are classified into five classes (Likert scales). The information layers are prepared numerically according to the factors. Then layers (height, velocity, and assets value) have been multiplied and integrated with GIS employing Spatial Analyst tools and Raster Calculator sub-menu to obtain an asset vulnerability final map (figure 8).