Phase transition in a mixture of adaptive cruise control vehicles and manual vehicles |
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Authors: | R Jiang M-B Hu B Jia R Wang Q-S Wu |
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Institution: | (1) School of Engineering Science, University of Science and technology of China, Hefei, 230026, China;(2) School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, P.R. China;(3) Institute of Information Sciences and Technology, Massey University Private Bag 102-904, North Shore Mail Centre, Auckland, New Zealand |
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Abstract: | In this paper, we have investigated the effects of adaptive cruise
control (ACC) vehicles in a mixture with manually-controlled
(manual) vehicles. The manual vehicles are simulated by using the
modified comfortable driving model, which can describe
synchronized traffic flow. The phase transition probabilities from free
flow to synchronized flow and from synchronized flow to jams are
studied. The impact of ACC vehicles on the flow rates in free flow
and synchronized flow and on the propagation velocity of the
downstream front of jams are investigated. The dependence of
microscopic properties of traffic flow, including the
spatiotemporal patterns and the velocity distribution, is
explored. Our results are expected to be useful for developing ACC
systems. |
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Keywords: | 45 70 Vn Granular models of complex systems traffic flow 89 40 -a Transportation 02 60 Cb Numerical simulation solution of equations |
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