MPC Research Reports |
Title: | Resilience-Based Recovery Planning of Transportation Network Following Earthquakes |
Authors: | Yangyang Wu, Guangyang Hou, and Suren Chen |
University: | Colorado State University |
Publication Date: | Aug 2024 |
Report #: | MPC-24-551 |
Project #: | MPC-642 |
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) simulating the traffic performance of partially closed road segments in the network simulation and optimization, which offer 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 comprehensive 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.
Wu, Yangyang, Guangyang Hou, and Suren Chen. Resilience-Based Recovery Planning of Transportation Network Following Earthquakes, MPC-24-551. North Dakota State University - Upper Great Plains Transportation Institute, Fargo: Mountain-Plains Consortium, 2024.