Post-earthquake resilience assessment and long-term restoration prioritization of transportation network

Yangyang Wu, Guangyang Hou and Suren Chen

Reliability Engineering and System Safety, 2021, vol. 211, issue C

Abstract: An efficient and safe transportation system is essential to communities during the long-term recovery period after earthquakes. A disrupted transportation network due to infrastructure damage or failure affects the functionality of the traffic system and poses increased traffic safety risks. A rational assessment of the traffic network performance in terms of both traffic efficiency and safety cannot only provide comprehensive quantification of system resilience, but also enable more risk-informed post-hazard recovery planning. A new methodology to assess the resilience performance of transportation networks during post-earthquake long-term recovery period is developed in this study with two main innovative contributions: (1) modeling the traffic performance of partially closed road segments in the network simulation and optimization, which offers useful tool to capture the time-progressive recovery process; and (2) integrating both traffic efficiency and safety into the resilience assessment and recovery prioritization. After a resilience indicator is introduced to characterize the overall traffic efficiency and safety of the transportation network using probabilistic sampling method, a new restoration priority measure is proposed to support post-earthquake restoration of damaged bridges. A demonstrative study is conducted on a hypothetical network system located in an earthquake-prone area.

Keywords: Long-term recovery; Transportation network; Restoration planning; Earthquake; Resilience (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (28)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:211:y:2021:i:c:s0951832021001575

DOI: 10.1016/j.ress.2021.107612

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