论文标题
单车道上的交通信号灯引起的相变
Phase transition induced by traffic lights on a single lane road
论文作者
论文摘要
在这项工作中，我们通过提出基于蜂窝自动机的交通模型，研究交通信号灯系统对单车道的流动的影响，该模型还包括行为考虑。我们通过研究车辆密度的变化和果酱的发生来关注系统的宏观表征。在这种情况下，我们观察并表征自由流和堵塞状态之间的相变。这种过渡是由车辆停在交通信号灯处的不稳定性引起的。此外，我们分析了这些不稳定性对过渡发生的车辆临界密度的影响，该密度是两个参数的函数：（i）汽车的流量，（ii）驱动程序的行为。对于后者，我们观察到，交通信号对驾驶员行为的扰动反馈可能会导致系统进入不同的方案，这也对此进行了分析。
In this work we study the effect of a traffic light system on the flow of a single lane road by proposing a traffic model based on a cellular automaton that also includes behavioral considerations. We focus on the macroscopic characterization of the system by studying the changes in vehicle density and the occurrence of jams. In this context we observe and characterize a phase transition between the free flow and jammed states. This transition is induced by the instabilities originated by the vehicles stopping at the traffic lights. Moreover, we analyze the effect of these instabilities on the critical density of vehicles at which the transition occurs as a function of two parameters: (i) the in-flow of cars, (ii) the drivers' behavior. For the latter we observe that the traffic light perturbations feedback on the drivers behavior can lead the system to different scenarios, which are also analyzed.
