The goal of this research is to provide tools for seismic retrofit decisions in metropolitan transportation networks. The objective is to extend the work completed for the PEER Highway Demonstration Project by developing and implementing a transportation network model capable of estimating increased travel delays and the economic losses associated with trips eliminated from the transportation network following an earthquake.
The work completed in PEER projects A5, 104199, and 3222001 links earthquake damage to transportation structures to transportation network performance and traveler responses at a metropolitan scale. Our new results build on this previous work and fit usefully into the FHWA/MCEER REDARS (Risks from Earthquake Damage to Roadway Systems) 2.0 Project. Once fully implemented, REDARS will make an attractive tool for investigating decision support problems of interest to PEER, e.g., evaluating the economic impact of improved bridge performance and/or the ability to more accurately predict performance through improved fragility models.
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