TY - GEN
T1 - Evaluation of impacts of adaptive cruise control on mixed traffic flow
AU - Zou, Xi
AU - Levinson, David M
PY - 2002
Y1 - 2002
N2 - This paper addresses the impacts of Adaptive (Intelligent) Cruise Control (ACC) laws on the traffic flow. Semi-automated vehicles, such as ACC Vehicles, with the capability to automatically follow each other in the same lane, will coexist with manually driven vehicles on the existing roadway system before they become universal. This mixed fleet scenario creates new capacity and safety issues. In this paper, simulation results of various mixed fleet scenarios under different ACC laws are presented. Explicit comparison of two ACC laws, Constant Time Headway (CTH) and Variable Time Headway (VTH), are based on these results. It is found that the latter one has better performance in terms of capacity and stability of traffic. Throughput increases with the proportion of CTH vehicles when flow is below capacity conditions. But above capacity, speed variability increases and speed drops with the CTH traffic compared with manual traffic, while the VTH traffic always performs better.
AB - This paper addresses the impacts of Adaptive (Intelligent) Cruise Control (ACC) laws on the traffic flow. Semi-automated vehicles, such as ACC Vehicles, with the capability to automatically follow each other in the same lane, will coexist with manually driven vehicles on the existing roadway system before they become universal. This mixed fleet scenario creates new capacity and safety issues. In this paper, simulation results of various mixed fleet scenarios under different ACC laws are presented. Explicit comparison of two ACC laws, Constant Time Headway (CTH) and Variable Time Headway (VTH), are based on these results. It is found that the latter one has better performance in terms of capacity and stability of traffic. Throughput increases with the proportion of CTH vehicles when flow is below capacity conditions. But above capacity, speed variability increases and speed drops with the CTH traffic compared with manual traffic, while the VTH traffic always performs better.
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M3 - Conference contribution
AN - SCOPUS:57649099754
SN - 0784406308
SN - 9780784406304
T3 - Proceedings of the Conference on Traffic and Transportation Studies, ICTTS
SP - 762
EP - 769
BT - Traffic and Transportation Studies 2002 - Proceedings of the 3rd International Conference on Traffic and Transportation Studies, ICTTS 2002
T2 - 3rd International Conference on Traffic and Transportation Studies, ICTTS 2002
Y2 - 23 July 2002 through 25 July 2002
ER -