Connected and autonomous vehicles (CAVs) have the capability to acquire real-time information from each other while human-driven vehicles (HVs) are standalone in the vehicle roadway navigation system. The information asymmetry poses significant challenges in managing and controlling vehicles in mixed traffic. To address such challenges, this study first customises the intelligent driver model to describe the car-following behaviour of CAVs. Furthermore, to raise the traffic efficiency of the mixed traffic flow, a new lane-changing decision support algorithm is proposed, which incorporates the interaction between CAVs and HVs by controlling the speed and locating the lane of CAVs. In addition to the common indexes of outflow and travel time to be used to measure the travel efficiency, new parameters such as platoon intensity and single rate are defined to evaluate the CAV platooning capability. Through simulation tests, the proposed controlling framework is implemented for a two-lane (per direction) freeway segment under different CAV penetration rates and input volumes. The simulation results indicate that, at all the CAV penetration levels, the proposed controlling algorithm provides significant performance improvements to the whole mixed traffic flow in terms of outflow, travel time, and the number of CAV platoons.
Cooperative bypassing algorithm for connected and autonomous vehicles in mixed traffic
IET Intelligent Transport Systems ; 14 , 8 ; 915-923
2020-06-30
9 pages
Article (Journal)
Electronic Resource
English
vehicle management , real-time information , information asymmetry , mixed traffic flow , intelligent driver model , decision support systems , controlling algorithm , cooperative systems , real-time systems , vehicle roadway navigation system , performance improvements , car-following behaviour , traffic efficiency , driver information systems , travel time , HV , connected and autonomous vehicles , lane-changing decision support algorithm , road vehicles , two-lane freeway segment , intelligent transportation systems , travel efficiency , vehicle control , road traffic control , cooperative bypassing algorithm , CAV platooning , controlling framework , speed control
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Cooperative bypassing algorithm for connected and autonomous vehicles in mixed traffic
Wiley | 2020
|Springer Verlag | 2022
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