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首页> 外文期刊>Journal of statistical mechanics: Theory and Experiment >Taming macroscopic jamming in transportation networks
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Taming macroscopic jamming in transportation networks

机译:应对交通网络中的宏观干扰

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摘要

In transportation networks, a spontaneous jamming transition is often observed, e.g. in urban road networks and airport networks. Because of this instability, flow distribution is significantly imbalanced on a macroscopic level. To mitigate the congestion, we consider a simple control method, in which congested nodes are closed temporarily, and investigate how it influences the overall system. Depending on the timing of the node closure and opening, and congestion level of a network, the system displays three different phases: free-flow phase, controlled phase, and deadlock phase. We show that when the system is in the controlled phase, the average flow is significantly improved, whereas when in the deadlock phase, the flow drops to zero. We study how the control method increases the network flow and obtain their transition boundary analytically.
机译:在运输网络中,通常会观察到自发的干扰过渡,例如在城市道路网络和机场网络中。由于这种不稳定性,在宏观上,流量分配明显不平衡。为了缓解拥塞,我们考虑一种简单的控制方法,其中暂时关闭拥塞的节点,并研究它如何影响整个系统。根据节点关闭和打开的时间以及网络的拥塞程度,系统显示三个不同的阶段:自由流动阶段,受控阶段和死锁阶段。我们表明,当系统处于受控阶段时,平均流量显着提高,而处于死锁阶段时,流量降至零。我们研究控制方法如何增加网络流量并解析地获得它们的过渡边界。

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