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).