Dual cruise-control limit cellular automaton model with cell length refinement in the framework of the three-phase traffic theory

Dual cruise-control limit cellular automaton model with cell length refinement in the framework of the three-phase traffic theory
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三相交通理论框架下单元长度细化的双巡航控制极限元胞自动机模型

DOI:
10.1088/1742-5468/ac21c7
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发表时间:
2021-10
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
--
通讯作者:
Bing-Hong Wang
Bing-Hong Wang
中科院分区:
其他
文献类型:
--
作者:
Qi-Lang Li;Lin-Ling Ye;Ding-Jun Fu;Rui Jiang;Bing-Hong Wang

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本文建立了一种新的双巡航控制极限元胞自动机模型,该模型在高速或低速行驶的车辆不受噪声影响的情况下,结合了前面只有一个自由单元的站立车辆的慢启动规则。在新的精炼模型中,每个单元和每辆车的长度分别设置为2.5米和7.5米。计算机仿真结果表明,无论车辆是均匀分布、密集分布还是随机分布,该模型都能成功再现三相交通流理论的经验特征,包括相变的2z特性。此外,还发现线性同步流的斜率tgα随同步流区的延迟概率p和低速v LM的最大值而变化。在均匀分布条件下,首次发现了具有双斜率(tgα, tgβ)的线性同步流。在随机分布条件下,三相交通流的所有可能共存相位都用基本图表示。
In this study, a new dual cruise-control limit cellular automaton model with a refined cell length, where vehicles moving with high or low velocity are not affected by noise and the slow-to-start rule is incorporated for standing vehicles with just one free cell in front, is established. In the new refined model, one sets each cell and each vehicle to 2.5 m and 7.5 m in length, respectively. Computer simulation results have shown that the new refined model can successfully reproduce the empirical features of three-phase traffic flow theory including 2Z-characteristic for phase transitions, whether vehicles are uniformly distributed, densely distributed or randomly distributed on the road first. Furthermore, one also finds that the slope tgα of the linear synchronous flow varies with the delay probability p and the maximum value of low velocity v LM in the synchronized flow region. Under homogeneous distribution, the linear synchronous flow with double slopes (tgα, tgβ) is first discovered for the case of 3 ⩽ v LM ⩽ 5. Under random distribution, all possible co-existence phases of three-phase traffic flow are presented in the fundamental diagram.
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发表时间: 2011-06
期刊: 2011 IEEE Intelligent Vehicles Symposium (IV)
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