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A Review on the Results of Adjusting Weight in Vulnerability Analysis of Climate Change Driven Disaster - Focused on Sea-level Rise -

도시 기후변화 재해취약성 분석방법의 가중치 조정에 따른 결과 비교 검토 - 해수면 상승 재해를 중심으로 -

  • Received : 2016.12.15
  • Accepted : 2017.06.16
  • Published : 2017.06.30

Abstract

The vulnerability analysis of climate change driven disaster has been used as institutional framework for the urban policies of disaster prevention since 2012. However, some problems have occurred due to the structure of vulnerability analysis, such as overweighted variables and duplicated application of variables of similar meaning. The goal of this study is to examine the differences of results between the method of current guideline and the method of weight equalization. For this, we examines the current structural framework of the vulnerability analysis, and performs empirical analysis. As a result, the extent and magnitude of vulnerability showed different spatial patterns depending on the weighting methods. Standardized weighting method relatively represented wider vulnerable areas compared to the pre-existing method which follows the current instruction manual. To apply the results of vulnerability analysis to urban planning process for disaster prevention, this study suggests that the reliability of the results should be ensured by improving analytical framework and detailed review of the results.

2012년에 도입된 도시 기후변화 재해취약성 분석은 현재 지침 제정으로 도시방재정책을 위한 제도적 기반으로 활용되고 있다. 그러나 실제 분석시 분석과정의 구조로 인하여 분석 지표의 가중치 불균형 및 지표의 다중 적용과 같은 문제점이 발생하는 등 개선의 여지가 남아 있다. 제도 도입시 전문가를 통해 도시 계획적 연관성이 높은 지표들이 선정되어 있는 상태라 하더라도 이러한 문제점들은 분석구조에 기인하여 지표들의 영향력이 반영되지 못한다는 결과를 낳는다. 따라서 본 연구에서는 도시 기후변화 재해취약성 분석의 구조를 살펴보고, 변수의 가중치를 조정하여 평준화시켰을 때 현 지침상의 분석결과와 차이가 발생하는지를 실증분석을 통해 검증하고자 하였다. 그 결과로 나타난 재해취약 정도가 두 방식에서 차이가 있음을 확인할 수 있었고 상대적으로 가중치 평준화 방식을 적용하였을 때 기존의 방식인 지침을 따를 때보다 재해취약지역이 더 넓게 나타났다. 이러한 차이는 분석의 구조적 틀을 개선하고 분석결과의 세밀한 검토를 통해 분석결과의 신뢰성 확보를 위한 노력이 필요함을 시사한다.

Keywords

References

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