A new macro model with consideration of the traffic interruption probability
A new macro model with consideration of the traffic interruption probability
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DOI：
10.1016/j.physa.2008.08.036
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发表时间：
2008-12
影响因子：
3.3
通讯作者：
Tie-Qiao Tang;Haijun Huang;Guoqiang Xu
中科院分区：
文献类型：
--
作者：
Tie-Qiao Tang;Haijun Huang;Guoqiang Xu
本文通过建立微观变量与宏观变量之间的内在联系，提出了一个新的宏观模型，该模型考虑了交通中断概率对跟驰行为的影响。线性稳定性分析表明，当且仅当驾驶员基于交通中断概率p调整加速度所需的反应时间不大于基于不中断概率1−p调整加速度所需的反应时间时，考虑交通中断概率才能改善交通流的稳定性。数值计算结果表明，该模型可用于分析交通中断概率和交通中断对激波、稀疏波、小扰动和均匀流的影响。该模型已被应用于再现一些复杂的交通现象所造成的一些交通中断（如，信号灯、行人和收费站）。
In this paper, we present a new macro model which involves the effects that the probability of traffic interruption has on the car-following behavior through formulating the inner relationship between micro and macro variables. Linear stability analysis shows that consideration of the traffic interruption probability can improve the stability of traffic flow if and only if the drivers’ reactive time required for adjusting their acceleration based on the traffic interruption probability p is not greater than that one based on the non-interruption probability 1−p. Numerical results verify that the new model can be used to analyze the effects of traffic interruption probability and traffic interruption on shock, rarefaction wave, small perturbation and uniform flow. The model has been applied in reproducing some complex traffic phenomena resulted by some traffic interruptions (e.g., signal light, pedestrian and tolling station).