United States Department of Transportation
i
Investigation on Wrong Way Driving Prevention Systems
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2021-05-01
[PDF-3.31 MB]
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Edition:Final Report December 2019 – May 2021
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Abstract:Wrong-way driving (WWD) is an event where a vehicle enters a high-speed divided highway from an off-ramp in the direction opposing to the legal traffic flow. Although being less frequent than other crash type, WWD is significantly more fatal and in Tennessee, there are on average 20 WWD annually. Therefore, this report aims to first understand WWD in Tennessee by investigating WWD crash data and second explores Wrong-way Prevention System technologies, investigates, and tests these products. After the results are gathered from testing, these systems are evaluated based on multiple criteria namely accuracy, responsiveness, life cycle cost, live-tracking, and additional features. Based on this evaluation along with the experiences in installing, testing, and operating these products, this report recommends TraffiCalm Wrong-way Prevention System as a solution to WWD. The system detects the WWD vehicle with ultimate accuracy, it is highly responsive and at a reasonable cost that can be deployed at multiple locations.
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