사회경제적 요소를 반영한 침수취약성 지수 개발: 서울특별시를 중심으로

초록

This study first estimates the risk and resilience of a community considering socio-economic factors, and then uses this to provide a comprehensive disaster assessment tool called the Socio-Economic Flood Vulnerability Index(SEFVI). The index was developed so that it can be used in disaster prevention policies such as improving disaster prevention performance targets. The Socio-economic Hazard(SH) assessment used a multi-criteria approach that quantifies flood hazard by integrating 4 socio-economic indicators that are weighted according to the results of correlation analysis with amount of flood damage. Meanwhile, Socio-economic Resilience(SR) is defined as the recovery ability of a community after flooding, and is evaluated through infrastructure, social, and economic factors. The weighting coefficients for each indicator are obtained by integrating them through correlation analysis with the recovery cost compared to the flood damage cost for 8 socio-economic indicators. The Socio-Economic Flood Vulnerability Index divides socio-economic hazard into resilience, and if the hazard is high but the resilience is high, the flood vulnerability index is adjusted slightly lower considering the impact, and if the hazard is low but the resilience is low, the flood vulnerability index is adjusted slightly higher, enabling the development of a more reliable index. This study is expected to provide a new index(SEFVI) for evaluating flood impacts and to contribute to improving flood damage response strategies.

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