United States Department of Transportation
i
Access Control at Major/Minor Road Intersection Through CAV in Mixed Traffic
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2023-08-01
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By Yi, Ping
[PDF-8.49 MB]
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Edition:Final Report (July 2018 – December 2022)
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Abstract:Roadway intersections are among the major causes of traffic congestion besides lane reduction bottlenecks. When a major road intersects a minor road at an unsignalized intersection without the control of a traffic signal, the mainline vehicles are given priority over the minor road vehicles to go through the intersection, and the latter can only enter or cross the intersection when there is a sufficient gap between successive vehicles on the major road. Connected and automated vehicles (CAV) are packed with tracking and lane-keeping assistance and adaptive speed control to ensure that vehicles do not collide while reducing traffic congestion. This research aims to utilize CAVs to help generate usable gaps for minor road vehicles to enter the intersection without interrupting the mainline traffic flow. A probability function is developed to study the probability in which CAVs can create additional usable gaps for the minor road vehicles based on the headway distribution of the mainline vehicles.
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