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Evaluation of Risk Hotspots to Urban Flood for a Spatial Disaster Risk Management: A Case Study of Jeju City

Jongso Lee 1 Song, Chang-Geun 2 Lee Sangeun 1

1국토연구원
2인천대학교

Accredited

ABSTRACT

For a practical tool for disaster risk reduction, this study examines how urban planners can evaluation of risk hotspots which are required to prevent urban areas from flood. This study attempts to analyze flood inundation area and depth in Jeju city. It then develops 10 GIS-based risk maps after flood inundation area is overlapped with various GIS maps officially produced by MOLIT(Ministry of Land, Infrastructure, and Transport). The 10 risk maps are applied to AHP and PROMETHEE, leading to the selection of risk hotspots. The proposed methods finally identifies 33 grids with size of 100m×100m successfully as flood risk hotspots. With all results together, this study concludes that if it is used in disaster prevention for urban plan, it will be useful for realistic disaster prevention and mitigation measures and contribute to comprehensive spatial planning.

Citation status

* References for papers published after 2023 are currently being built.