论文标题
公交车混合流量细胞自动机模型中的跨界转变
Crossover transitions in a bus-car mixed-traffic cellular automata model
论文作者
论文摘要
我们修改了Nagel-Schreckenberg（NASCH）细胞自动机模型，以研究混合交通动力学。我们专注于乘客可用性和公交限制的相互作用。总线停在离散人行道模型的被占用单元附近。通过参数指定停止之间的间距距离，我们的模拟涵盖了载荷行为的范围，该行为的范围范围较大。客运率和公共汽车密度的相互作用驱动从排队到非平台（自由流和拥挤）州的交叉过渡。我们表明，可以通过降低乘客到达率或增加总线密度来溶解排。溶解排的关键乘客到达率是车辆密度的指数函数。我们还发现，在低密度下，间距停止结合在一起，可以诱导排量状态，从而降低了系统速度并增加了乘客的等待时间。
We modify the Nagel-Schreckenberg (NaSch) cellular automata model to study mixed-traffic dynamics. We focus on the interplay between passenger availability and bus-stopping constraints. Buses stop next to occupied cells of a discretized sidewalk model. By parametrizing the spacing distance between designated stops, our simulation covers the range of load-anywhere behavior to that of well-spaced stops. The interplay of passenger arrival rates and bus densities drives crossover transitions from platooning to non-platooned (free-flow and congested) states. We show that platoons can be dissolved by either decreasing the passenger arrival rate or increasing the bus density. The critical passenger arrival rate at which platoons are dissolved is an exponential function of vehicle density. We also find that at low densities, spacing stops close together induces platooned states, which reduces system speeds and increases waiting times of passengers.
