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Edition:Final Report October 15, 2017 – May 1, 2018
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Abstract:Recent US planning documents focus on transportation network preparedness, emphasizing “securing and managing flows of people and goods” along transportation networks. Presidential Policy Directive 21 states that critical infrastructure “must be secure and able to withstand and rapidly recover from all hazards.” This combination of the abilities to (i) withstand the effects of a disruption and (ii) recover timely is often referred to as resilience. In a recently completed SPTC project, we examined transportation network component importance from the perspective of the vulnerability of commodity flows and the interdependent, multi-regional, multi-industry impact of the disruption of those commodity flows. Naturally a more comprehensive view of transportation network resilience must extend from the vulnerability of transportation assets to their post-disruption recovery. In this project report, we build upon the prior SPTC project to propose an optimization formulation to recover disrupted components in the multi-modal transportation network with multi-industry impacts in mind. The primary contribution of this work is the relating network recoverability and interdependent impact to individual network components – an important perspective not currently available in the literature. That is, how can the complementary view of economic impact assist transportation planners in understanding (i) what order of components to repair and (ii) how to schedule work crews to perform this repair?
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