United States Department of Transportation
i
Connected Vehicle Pilot Deployment Program Independent Evaluation: Environmental Impact Assessment—Tampa (THEA)
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2022-03-10
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[PDF-904.65 KB]
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Edition:Research Report
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Abstract:In September 2015, the U.S. Department of Transportation Intelligent Transportation Systems Joint Program Office selected three Connected Vehicle Pilot Deployment (CVPD) Program sites: Wyoming, New York City, and Tampa. Each deployment represents different potential settings for connected vehicle (CV) technologies and was comprised of different applications that address vastly different problems. This report provides an independent assessment of the mobility impacts associated with the Tampa Hillsborough Expressway Agency (THEA) CVPD. This evaluation is primarily qualitative in nature and based on data provided by the THEA CVPD Team. The THEA CVPD Team did not provide any evidence that the deployment had any impact on fuel consumption and emissions. Using the change in idle time of CVs reported by the THEA CVPD Team, the Texas A&M Transportation Institute (TTI) showed that total fuel consumption was reduced in the post-deployment period, but this was caused by fewer vehicles entering the study area during the post-deployment period compared to the pre-deployment period. Using the Environmental Protection Agency’s Greenhouse Emissions Calculator, TTI estimated a reduction of 240 kilograms of carbon dioxide emissions per year. This reduction was based on the estimated reductions in fuel consumed while idling resulting from the end-of-ramp deceleration warning in Use Case 1.
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