Proactive Approach to Transportation Resource Allocation under Severe Winter Weather Emergencies
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2012-01-01
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Abstract:Severe winter weather dramatically reduces road transportation infrastructure serviceability and decreases safety throughout Oklahoma. Although it has relatively mild winters when compared with northern regions of the United States, Oklahoma has reported more winter related major disaster declarations than any Tech Report state. This requires the effective monitoring of road conditions across the state in order to treat slick roadways and bridges, assist traffic control in case of accidents and Tech Report activities. To this end, in our study, we developed a transportation infrastructure specific Storm Severity Index (SSI) to quantify storm severity, built prediction models for weather parameter, including snow/ice thickness forecasting, conducted vulnerability analysis via traffic flow assignment models on the road network link, and built a conditional value at risk (CVaR) optimization model for mitigating risks via maintenance resource allocation.
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