Impacts of Cooperative Adaptive Cruise Control on Freeway Traffic Flow
Impacts of Cooperative Adaptive Cruise Control on Freeway Traffic Flow
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DOI：
10.3141/2324-08
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发表时间：
2012-01-01
影响因子：
1.7
通讯作者：
Lu, Xiao-Yun
中科院分区：
文献类型：
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作者：
Shladover, Steven E.;Su, Dongyan;Lu, Xiao-Yun
本研究使用微观模拟来评估具有自适应巡航控制（ACC）和协作自适应巡航控制（CACC）的车辆的不同市场渗透率对高速公路通行能力的影响。由于模拟使用的时间间隔设置的分布，从一般公众的司机在一个真实的现场实验中使用，这项研究是第一次对ACC和CACC对交通的影响是基于驾驶员使用这些类型的控制的真实的数据。结果表明，使用ACC不太可能显著改变车道通行能力。然而，CACC在其市场渗透率达到中等至高百分比后，能够大幅增加产能。通过为非ACC车辆配备车辆感知设备，可以加速容量增加，以便它们可以作为CACC车辆的领头车辆。
This study used microscopic simulation to estimate the effect on highway capacity of varying market penetrations of vehicles with adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC). Because the simulation used the distribution of time gap settings that drivers from the general public used in a real field experiment, this study was the first on the effects of ACC and CACC on traffic to be based on real data on driver usage of these types of controls. The results showed that the use of ACC was unlikely to change lane capacity significantly. However, CACC was able to increase capacity greatly after its market penetration reached moderate to high percentages. The capacity increase could be accelerated by equipping non-ACC vehicles with vehicle awareness devices so that they could serve as the lead vehicles for CACC vehicles.