강우와 사회적 영향 요인을 고려한 자연 급경사지 재해위험도 평가 방법의 개선 방안

초록

This study investigated the sensitivity of rainfall and social impact factors in steep slope disaster risk assessment using a weighted scoring method. Assigning weights to rainfall factors shifted the assessment toward higher risk grades, while social impact factors revealed greater susceptibility in residential and transportation areas than in park areas. When both factors were integrated, the proportion of high-risk grades (D and E) increased, improving the discriminatory capacity of the assessment and reducing grade concentration. These results demonstrate that weighted scoring enables more conservative and realistic risk estimation. Further refinement of weighting methods and the incorporation of climate-driven variables are recommended to improve the robustness of steep slope disaster risk assessment.

키워드