Development and Application of Precise Debris flow Risk Assessment Index in Urban Area
In recent years, social demands for debris flow disaster prevention measures are increasing because the more landslides make, the more loss of lives and property damages in urban area. However, in domestic, there are no precise indexes for the assessment of debris flow risk in urban area. For this reason, precise debris flow risk assessment indexes should be identified as a basic research. In this study, index of precise debris flow risk assessment considering Korean situations was derived through the analysis of inventory system using HAZAUS MH of FEMA. Twenty one indexes have been selected and categorized as three groups such as population, buildings and infrastructures. Assessment indexes were validated by AHP expert survey as 73.5% for population, 14.8% for infrastructure and 11.7% for Buildings. The indexes were applied to assess debris flow risk in Seocho gu, debris flow damaged area as a case study. As the result of comparison between the results of Uran Vulnerability Assessment considering Climate change in 2011 and the results of this study, the precise debris flow risk assessment of building units could be conducted.