Planning & Management
398065 - Development and Application of Index based Risk Assessment Model
Tuesday, June 5
2:00 PM - 3:30 PM
Location: Greenway GH
Kongju National University
Hayong Kim, South Korea – Kongju National University; Sangman Jeong, South Korea – Kongju National University
Various regions especially urban areas have become more vulnerable to natural disaster due to urbanization and increase in population density. Factors such as population density, impermeable surface area and population vulnerable to disaster increases natural disaster risk. In order to reduce disaster risk, assessment of socio-economic disaster risk is essential. In this study, the socio-economic risk by flood, wind and snow disaster which is 99% of total natural disaster damage in Korea was assessed in Daegu, Ulsan, Gangwon, and Gyeongbuk. The risk is composed of hazards, exposure, vulnerability and disaster coping and adaptive capacity. Hazards include rainfall intensity, snow depth and wind velocity. In terms of exposures, it is composed of population density and the number of cars. For vulnerability, it denotes how impermeable the surface is and urbanization rate. And for disaster coping and adaptive capacities, this involves the GDP of the location and detention volume. All of these factors are calculated and normalized using z-score and each factor’s weight was estimated through the Analytic Hierarchy Process (AHP). Then, the normalized z-score was combined by applying the estimated weights. In addition, the socio-economic risk was classified according to the combined z-score. The risk is expected to decide the hazardous administrative districts by flood, wind and snow disaster.
This research was supported by a grant [MOIS-DP-2013-01] through the Disaster and Safety Management Institute funded by Ministry of the Interior and Safety of Korean government.
This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(No. 2017R1D1A1B03034387)