United States Department of Transportation
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Development of an Emission-Based Selection Algorithm to Optimize Variable Message Sign Locations
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2020-11-01
[PDF-1.49 MB]
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Edition:Final Report 9/1/2019–8/31/2020
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Abstract:This project devised an optimization method to site variable message signs (VMSs) for traffic incident management. The optimization objective is to maximize the economic utility of each VMS, considering both the monetary value of time and value of emissions. The method includes an integrated traffic and emissions simulation module and an optimization module that stochastically sample from real-world incident data. The method was applied to El Paso, Texas, as a case study. The case study demonstrated convergence of the optimization process, arriving at a stable set of optimal sites given various input assumptions. The optimally sited VMSs showed favorable societal return on investment in congestion relief and emissions reduction.
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