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Ensuring the Evacuation Path Based on Inundation & Refuge Approach Vulnerability Analysis in Residential Buildings - Focused on Daegu Bukgu Inundation Case District -

침수 시 주거용 건축물에서 대피시설로의 접근 취약성 분석을 통한 피난경로 확보방안 - 대구시 북구 침수 사례지를 중심으로 -

  • Received : 2012.05.22
  • Accepted : 2012.08.31
  • Published : 2012.10.25

Abstract

Recently, there have been frequent occurrence of the damage to lives and properties due to the torrential rain caused by climate change. In consideration of the current situations in which the underlying data related to flooding are lacking, this study conducted to build up the basic data on the flooded areas and suggested methods to secure the evacuation routes that can be accessible to evacuation facilities in the residential buildings. Methods of the study are as follows. First, We calculated the flood risk grades of residential buildings based on elevations, considering the flooding characteristics of the flooded areas in Buk-gu, Daegu. Second, We constructed baseline data on the evacuation routes through site investigation and reviewed of drawing using Arc GIS to identify vulnerability to access to the evacuation facilities, targeting the residential buildings. Third, We carried out the proximity analysis through a near analysis of analysis functions in ARC GIS. Forth, We deduced 115 residential buildings in which access to evacuation facilities is considered to be difficult based on the analysis results. Finally, We proposed extension of a blind alley as a means for achieving connectivity to evacuation facilities. And to evaluate the alternatives presented, we reconstructed route data. As a result, about 53% improvement was identified through the proximity analysis.

Keywords

References

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