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Development of an Index for the Risk Assessment of Walking Trail

탐방로 재난 위험성 평가를 위한 위험지수 개발

  • Kwak, Jae Hwan (Forest Engineering Research Institute, Forest Technology Division, National Forestry Cooperative Federation (NFCF)) ;
  • Kim, Hong Gyun (Forest Engineering Research Institute, Forest Technology Division, National Forestry Cooperative Federation (NFCF)) ;
  • Kim, Youl (Forest Engineering Research Institute, Forest Technology Division, National Forestry Cooperative Federation (NFCF)) ;
  • Kim, Man-Il (Forest Engineering Research Institute, Forest Technology Division, National Forestry Cooperative Federation (NFCF)) ;
  • Lee, Moon Se (Forest Engineering Research Institute, Forest Technology Division, National Forestry Cooperative Federation (NFCF))
  • 곽재환 (산림조합중앙회 산림종합기술본부 산림공학연구소) ;
  • 김홍균 (산림조합중앙회 산림종합기술본부 산림공학연구소) ;
  • 김열 (산림조합중앙회 산림종합기술본부 산림공학연구소) ;
  • 김만일 (산림조합중앙회 산림종합기술본부 산림공학연구소) ;
  • 이문세 (산림조합중앙회 산림종합기술본부 산림공학연구소)
  • Received : 2018.05.29
  • Accepted : 2018.06.26
  • Published : 2018.09.30

Abstract

A walking trail environment can be divided into the upper part of the trail, the trail itself, and the lower part of the trail. In this study, based on field investigations, we developed a risk index for trails by considering human/societal factors that affect each of these three trail environments. A checklist was developed for field investigations, and checklist items were scored through relative importance analysis. The relative weights of items were analyzed using the AHP (Analytic Hierarchy Process) technique, revealing that the upper environment of a trail is twice as important as the rest of the environment. The importance and score of items belonging to each environment were determined. We define the risk index as the sum of the item scores. Weights were added using data from existing investigations including landslides risk rating and designated risk steep slopes. The risk index has a maximum value of 200, and the maximum and minimum calculated scores of 335 risk sections were 159 and 64.2, respectively. As a result of comparative analysis between field observations and risk index calculations, most sections at relatively low risk had risk values less than 100, and sections with high risks or that had been the site of accident yielded scores that exceeded 140.

탐방로의 전체적인 환경은 크게 탐방로 상부, 탐방로 자체, 탐방로 하부로 나누어진다. 본 연구에서는 현장조사를 기반으로 하여 3가지의 탐방로 환경과 인문/사회 요인을 결합하여 탐방로 위험지수를 개발하였다. 탐방로 현장조사를 위해 체크리스트를 개발하였으며, 체크리스트 항목들은 상대적인 중요도 분석과정을 거쳐 점수화 되었다. 항목들의 상대비중 분석은 AHP 기법을 활용하였다. AHP 분석 결과, 탐방로 상부 환경이 나머지 환경들에 비해 2배 중요한 것으로 나타났으며, 각 환경들에 속한 항목들의 중요도 및 배점이 정해졌다. 위험지수는 항목들의 총합으로 계산되었으며, 기조사 자료를 이용한 가중치가 더해졌다. 위험지수는 총점 200점으로 설정하였으며, 최대 159점, 최소 64.2점으로 산출되었다. 현장 상황과 위험지수의 비교 분석 결과, 위험성이 낮은 구간은 대부분 100점 이하의 값을 보였으며, 위험성이 매우 높거나 사고이력을 가지는 구간은 140점을 초과하는 것으로 나타났다.

Keywords

References

  1. Chae, B.G., Cho, Y.C., Song, Y.S., Seo, Y.S., 2009, Development of an Evaluation Chart for Landslide Susceptibility using the AHP Analysis Method, Journal of Engineering Geology, 19(1), 99-108 (in Korean with English abstract). https://doi.org/10.3969/j.issn.1004-9665.2011.01.016
  2. KICT, 2002, Development and operation of road cut slope management system IV, 302 (in Korean).
  3. KICT, 2003, Development and operation of road cut slope management system in 2002, 302 (in Korean).
  4. KICT, 2010, Development and operation of road cut slope management system in 2009, 336 (in Korean).
  5. Kim, H.G., Kim, T.H., Kim, J.H., Kwak, J.H., Park, S.W., Choi, S.W., Song, Y.K., 2016, Maintenance of Hazardous Steep Slopes on National Park Trails, Journal of Engineering Geology, 26(1), 129-142 (in Korean with English abstract). https://doi.org/10.9720/kseg.2016.1.129
  6. Kim, K.C., 2014, Study on Safety Management of National Park Visitor through the trail course risk assessment - Focusing on trail course of Seorak National Park -, Master Thesis, Kangwon National University, 1-65p (in Korean with English abstract).
  7. Lee, S.W., 2005, A Study on Decision Making for Port Remodelling in Korea Applied on Analytic Hierarchy Process, Journal of Korea Planners Association, 40(4), 59-71 (in Korean with English abstract).
  8. Pyo, Y.M., 2004, Study on the Analysis of Factors Decreasing Construction Labor-Productivity using AHP Method, Master Thesis, Dongeui University, 1-110p (in Korean with English abstract).
  9. Yang, I.T., Kim J.C., Chun, K.S., Kim, D.M., 2001, Analysis of Landslide Factors Using Geo-Spatial Information System and Analytic Hierarchy Process, Journal of the Korean Society of Surveying, 19(3), 273-281 (in Korean with English abstract).
  10. Yang, I.T., Kim, D.M., Choi, S.P., 2002, The Quantification Research of Multi-Factors for Route Determination Using AHP Technique, Journal of the Korean Society of Surveying, 20(2), 199-206 (in Korean with English abstract).