United States Department of Transportation
i
Evaluation of Driveway Assistance Devices in Signalized Work Zones
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2023-03-01
[PDF-1.83 MB]
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Edition:Final Report
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Abstract:An evaluation was conducted along State Route 60, in Muskingum County, Ohio as associated with ODOT’s construction contract 210208, (PID 101004) to examine the performance differences between traditional temporary traffic signals and Driver Assistance Devices (DADs) at driveways in a work zone. The project consisted of a field and microsimulation analysis to quantify operational and safety of both work zone driveway devices, a benefit-to-cost analysis and a user survey. The overall results of the research study (field and microsimulation analysis) indicate that the DADs provide higher levels of driver compliance, improved operational performance and reduced the potential for crashes through work zones over the traditional temporary traffic signal devices. The roadway users understood the operation of the DADs and construction personnel preferred the DADs over the temporary traffic control signal devices for construction operations and safety reasons. The benefit-to-cost ratio supports the utilization of the DADs over the temporary traffic signal devices.
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