Journal of Korean Society of Disaster and Security (한국방재안전학회논문집)

Korean Society of Disaster & Security (한국방재안전학회)
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The Effect of Road Networks on Urban Resilience in Flooding

도시침수 시 도로네트워크가 도시회복도에 미치는 영향 분석

  • Hyung Jun Park (Department of Civil and Environmental Engineering, Hongik University) ;
  • Dong Hyun Kim (Department of Civil and Environmental Engineering, Hongik University) ;
  • Hyun Jung Lee (Department of Civil and Environmental Engineering, Hongik University) ;
  • Seung Oh Lee (Department of Civil and Environmental Engineering, Hongik University)
  • 박형준 (홍익대학교 건설환경공학과) ;
  • 김동현 (홍익대학교 건설환경공학과) ;
  • 이현중 (홍익대학교 건설환경공학과) ;
  • 이승오 (홍익대학교 건설환경공학과)
  • Received : 2023.05.15
  • Accepted : 2023.06.14
  • Published : 2023.06.30
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Abstract

Flood is one of the most frequent natural disasters worldwide. In Korea, the probability of urban flooding is greatly increasing due to complex factors such as global warming, an increase in impervious areas, and limitations in expanding water supply facilities in existing urban areas. However, large-scale civil engineering works to prevent urban inundation are socially and economically difficult to obtain national consent. Recently the importance of resilience, which is the ability to return to the original state after a disaster through rapid recovery while preparing for natural disasters to a level that the local community can afford socially and economically, is increasing. Accordingly, various studies on urban resilience have been conducted, but the resilience measurement method related to the lifeline that provides essential services of the city is insufficient. However, among lifelines, road networks are important facilities for the transportation of recovery resources and rapid recovery in the event of a natural disaster, so road networks are a major factor that must be considered when measuring the degree of recovery of a city in the field of natural disasters. Therefore, this study proposes a recovery evaluation method considering the characteristics of resilience and road networks in the urban flooding field and analyzes the effect of road networks on urban resilience.

홍수는 전 세계적으로 가장 빈번한 자연재해 중 하나로, 국내의 경우 지구온난화의 진행, 불투수면적의 증가, 기존 시가지 내 치수시설 확충의 한계 등 복합적인 요인으로 인하여 도시침수 발생 확률은 크게 증가하고 있다. 하지만 도시침수 방지를 위한 설계홍수량의 상향 및 대규모 토목공사는 사회·경제적으로 전 국민적인 동의를 받기 어렵다. 따라서 자연재해에 대해 지역공동체가 사회·경제적으로 감당 가능한 수준으로 대비를 하되, 신속한 복구를 통해 재해 이후 원래의 상태로 되돌아가는 능력인 회복도의 중요성이 높아지고 있다. 이에 도시회복도에 관한 다양한 연구가 수행되어지고 있지만 도시의 필수적인 서비스를 제공하는 라이프라인과 연관된 회복도 측정법은 미비한 상황이다. 특히 라이프라인 중 도로네트워크는 자연재해 발생 시 복구자원 수송과 신속한 복구를 진행하기 위한 중요한 시설인 만큼 도로네트워크는 도시의 회복도를 측정할 때 반드시 고려해야하는 주요 요소이다. 따라서 본 연구는 회복도 특성 및 도로네트워크 기반의 회복도 평가법을 제시하고 도로네트워크가 도시회복도에 미치는 영향을 분석하고자 한다.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원의 기후위기대응 홍수방어능력 기술개발사업의 지원을 받아 연구되었습니다(2022003470001).

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