Evaluation of Localized Flood Vulnerability Index through its Components’ Behavioral Trends:

Natural disasters such as flood increase its frequency of occurrence and have made a toll on the lives of many people. This research focuses and gives its attention on the assessment of a Flood Vulnerability Index (FVI) under a local scale to clearly define its condition through the use of trends from the components of FVI. This also seeks the attention of decision, policy makers and stakeholder for this would locate the soft spots of the flood through the vulnerability index using the components as determinants of those weaknesses. In order to do this research, weights were applied to the indicators and components using the Analytical Hierarchy Process (AHP). Then, calibration and verification using a 10-year data of the municipality of Manito were made to check its robustness and see the trend on its four components namely social, economic, environmental and physical. The FVI values are also standardized having a range of 0 to 1 to determine the vulnerability of an area, where 0 is the least vulnerable and 1 being the highest. The result of the study shows that there was a 0.05 relative or 5% percentage error in the calibration and verification of the FVI under the local scale, making it plausible and reliable. Also, it shows that the vulnerability is indeed time-dependent, so a need to ensure the succeeding years for analysis and evaluation is a must. The result also showed that 3 out of the 4 components obtained a high FVI value (environmental, economic and physical, respectively). Therefore, this research evaluated the FVI of the area and had identified which among the components needs prior attention, so that the government can respond correctly on how to mitigate flood.