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Vulnerability Analysis of Urban Drainage Systems: Tree vs. Loop Networks

Author

Listed:
  • Chi Zhang

    (School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China)

  • Yuntao Wang

    (School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China)

  • Yu Li

    (School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China)

  • Wei Ding

    (School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China)

Abstract

Vulnerability analysis of urban drainage networks plays an important role in urban flood management. This study analyzes and compares the vulnerability of tree and loop systems under various rainfall events to structural failure represented by pipe blockage. Different pipe blockage scenarios, in which one of the pipes in an urban drainage network is assumed to be blocked individually, are constructed and their impacts on the network are simulated under different storm events. Furthermore, a vulnerability index is defined to measure the vulnerability of the drainage systems before and after the implementation of adaptation measures. The results obtained indicate that the tree systems have a relatively larger proportion of critical hydraulic pipes than the loop systems, thus the vulnerability of tree systems is substantially greater than that of the loop systems. Furthermore, the vulnerability index of tree systems is reduced after they are converted into a loop system with the implementation of adaptation measures. This paper provides an insight into the differences in the vulnerability of tree and loop systems, and provides more evidence for development of adaptation measures (e.g., tanks) to reduce urban flooding.

Suggested Citation

  • Chi Zhang & Yuntao Wang & Yu Li & Wei Ding, 2017. "Vulnerability Analysis of Urban Drainage Systems: Tree vs. Loop Networks," Sustainability, MDPI, vol. 9(3), pages 1-18, March.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:3:p:397-:d:92406
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    References listed on IDEAS

    as
    1. Shuang, Qing & Zhang, Mingyuan & Yuan, Yongbo, 2014. "Node vulnerability of water distribution networks under cascading failures," Reliability Engineering and System Safety, Elsevier, vol. 124(C), pages 132-141.
    2. Susan L. Cutter & Bryan J. Boruff & W. Lynn Shirley, 2003. "Social Vulnerability to Environmental Hazards," Social Science Quarterly, Southwestern Social Science Association, vol. 84(2), pages 242-261, June.
    3. repec:bla:devpol:v:25:y:2007:i:2:p:243-264 is not listed on IDEAS
    4. Jorge Pinto & Humberto Varum & Isabel Bentes & Jitendra Agarwal, 2010. "A Theory of Vulnerability of Water Pipe Network (TVWPN)," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 24(15), pages 4237-4254, December.
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    Cited by:

    1. Haixing Liu & Yuntao Wang & Chi Zhang & Albert S. Chen & Guangtao Fu, 2018. "Assessing real options in urban surface water flood risk management under climate change," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 94(1), pages 1-18, October.
    2. Shuangqing Yan & Yang Zheng & Jinbao Chen & Yousong Shi, 2022. "Hydraulic Oscillation Analysis of the Hydropower Station with an Equivalent Circuit-Based Hydraulic Impedance Scheme," Sustainability, MDPI, vol. 14(18), pages 1-16, September.
    3. Yuanyuan Yang & Wenhui Zhang & Zhe Liu & Dengfeng Liu & Qiang Huang & Jun Xia, 2023. "Coupling a Distributed Time Variant Gain Model into a Storm Water Management Model to Simulate Runoffs in a Sponge City," Sustainability, MDPI, vol. 15(4), pages 1-13, February.

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