Journal of the Korean Society of Hazard Mitigation (한국방재학회 논문집)

Korean Society of Hazard Mitigation (한국방재학회)
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A Study on Urban Flood Vulnerability Assessment

도시홍수 취약성 평가에 대한 연구

  • Park, Moojong (Department of civil Engineering, Hanseo University) ;
  • Song, Youngseok (Department of civil Engineering, Hanseo University) ;
  • Joo, Jingul (Division of Architecture, Civil & Landscape, Jeonbuk Science College) ;
  • Park, Minkyu (Department of Disaster Mitigation and Safety Science, Jungwon University)
  • 박무종 (한서대학교 토목공학과) ;
  • 송영석 (한서대학교 토목공학과) ;
  • 주진걸 (전북과학대학교 건축토목조경과) ;
  • 박민규 (중원대학교 방재안전공학과)
  • Received : 2013.08.12
  • Accepted : 2013.10.17
  • Published : 2013.10.31
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Abstract

Urban flood inundation by poor interior drainage systems causes annually the significant loss of life and properties in Korea. The inundation vulnerability assessment is important for policy establishment and priority decision of disaster management policy. In this study, an assessment model was developed for urban vulnerable areas. An assessment model was applied to arithmetic Urban flood vulnerability assessment and Urban flood vulnerability assessment using Promehtee(Preference Ranking Organization Method for Enrichment Evaluation). Assessment factors that directly affect urban flood were selected to lowland area, length of poor drainage sewer, and curve number. The results of assessment, inundation records are in concordance with arithmetic urban flood vulnerability assessment method about 75% and urban flood vulnerability assessment using Promehtee about 58.3%. In this study, arithmetic urban flood vulnerability assessment method using assessment factors that directly affect urban flood was confirmed by accuracy.

내수배제 불량으로 인한 도시침수는 매년 심각한 인적, 물적 피해를 발생시키고 있다. 내수침수 피해 저감을 위한 방재정책을 수립하고, 방재대책의 우선순위를 결정하기 위해서는 대상지역의 취약성을 적절하게 평가하는 것이 중요하다. 본 연구에서는 도시지역의 침수피해 취약지역을 평가할 수 있는 모형을 개발하였다. 평가 모형은 산술적인 도시홍수 취약성 평가 방법과 Promethee를 이용한 도시홍수 취약성 평가 방법을 적용하였다. 평가인자로는 도시홍수에 직적접인 영향을 미치는 저지대 지역, 통수능력 부족관거 그리고 유출곡선 지수를 선정하였다. 평가 결과 과거 침수기록과 비교하였을 때 산술적인 도시홍수 취약성 평가 방법은 약 75%의 일치율을 Promethee를 이용한 도시홍수 취약성 평가방법은 58.3%의 일치율이 분석되었다. 본 연구에서는 도시홍수에 직접적인 영향을 미치는 인자를 활용한 산술적인 도시홍수 취약성 평가방법의 적확성을 확인할 수 있었다.

Keywords

Acknowledgement

Supported by : 한서대학교

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