A GIS-Based Framework for Real-Time Debris-Flow Hazard Assessment for Expressways in Korea

Han-Saem Kim; Choong-Ki Chung; Sang-Rae Kim; Kyung-Suk Kim

doi:10.1007/s13753-016-0096-3

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Article Navigation > International Journal of Disaster Risk Science > 2016 > 7(3): 293-311

Han-Saem Kim, Choong-Ki Chung, Sang-Rae Kim, Kyung-Suk Kim. A GIS-Based Framework for Real-Time Debris-Flow Hazard Assessment for Expressways in Korea[J]. International Journal of Disaster Risk Science, 2016, 7(3): 293-311. doi: 10.1007/s13753-016-0096-3

Citation:

Han-Saem Kim, Choong-Ki Chung, Sang-Rae Kim, Kyung-Suk Kim. A GIS-Based Framework for Real-Time Debris-Flow Hazard Assessment for Expressways in Korea[J]. International Journal of Disaster Risk Science, 2016, 7(3): 293-311. doi: 10.1007/s13753-016-0096-3

Citation:

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A GIS-Based Framework for Real-Time Debris-Flow Hazard Assessment for Expressways in Korea

doi: 10.1007/s13753-016-0096-3

1 Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources, 124 Gwahak-ro, Daejeon, Korea;
2 Department of Civil and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Seoul, Korea;
3 Department of Civil and Environmental Engineering, Northwestern University, 633 Clark St, Evanston, USA;
4 Expressway and Transportation Research Institute, Korea Expressway Corporation, 922 Dongbu-daero, Hwaseong, Korea

Funds:

This research was supported by the Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM) and the National Research Foundation of Korea (NRF) Grant (No. 2015R1A5A7037372) funded by the Korean Government (MSIP). The authors sincerely acknowledge the support and guidance provided by the editors and reviewers. We especially thank the Korea Expressway Corporation for its leadership and support.

Available Online: 2021-04-26

Abstract

Abstract

Debris flows caused by heavy rainfall in mountain areas near expressways lead to severe social and economic losses and sometimes result in casualties. Therefore, the development of a real-time system for debris-flow hazard assessment is necessary to provide preliminary information for rapid decision making about evacuations or restoration measures, as well as to prevent secondary disasters caused by debris flows. Recently, various map-based approaches have been proposed using multi-attribute criteria and assessment methods for debris-flow susceptibilities. For the macrozonation of debris-flow hazard at a national scale, a simplified method such as the Korea Expressway Corporation (KEC) debris-flow hazard assessment method can be applied for systematic analysis based on geographic information systems (GIS) and monitoring networks. In this study, a GIS-based framework of real-time debris-flow hazard assessment for expressway sections is proposed based on the KEC debris-flow hazard assessment method. First, the KEC-based method was standardized in a systematic fashion using ArcGIS, enabling the objective and quantitative acquisition of various attribute datasets. The quantification of rainfall criteria also was considered. A safety management system for debris-flow hazard was developed based on the GIS platform. Finally, the method was applied and verified on three expressway sections in Korea. The grading standard for each individual influencing attribute was subsequently modified to more accurately assess the debris-flow hazards.
- Debris-flow hazard,
- Expressway management,
- GIS,
- Korea,
- Real-time hazard assessment

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References(31)

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