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arXiv 2103.14745physics.soc-phcond-mat.stat-mech
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城市交通网络中交通中断模式的稳定性

On the stability of traffic breakup patterns in urban networks

Marco Cogoni, Giovanni Busonera

摘要:

我们研究的行为扩展的城市交通网络的渗流理论的框架内,通过使用真实的和合成的交通数据。我们的主要重点从最近研究的集群大小分布的统计特性转向临界集群的空间分析以及整个城市配置之间相似性度量的定义。我们发现,完整的网络的解体模式,形成的连接功能的道路集群在临界状态下,显示出显着的稳定性,从一个小时到下一个,并在同一时间的不同天的可预测性。我们证明了这一点,通过展示最高等级的集群的平均空间分布如何随着时间的推移而演变,并通过建立一个分类的交通状态通过降维的距离矩阵,通过聚类相似性得分获得。最后,我们表明,一个简单的随机渗流模型可以近似的破碎模式时,施加远程空间相关性的重的实际交通。

英文摘要:

We investigate the behavior of extended urban traffic networks within the framework of percolation theory by using real and synthetic traffic data. Our main focus shifts from the statistical properties of the cluster size distribution studied recently, to the spatial analysis of the clusters at criticality and to the definition of a similarity measure between whole urban configurations. We discover that the breakup patterns of the complete network, formed by the connected functional road clusters at criticality, show remarkable stability from one hour to the next, and predictability for different days at the same time. We prove this by showing how the average spatial distributions of the highest-rank clusters evolve over time, and by building a taxonomy of traffic states via dimensionality-reduction of the distance matrix, obtained via a clustering similarity score. Finally, we show that a simple random percolation model can approximate the breakup patterns of heavy real traffic when long-ranged spatial correlations are imposed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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