Urban Traffic Dynamics: A Scale-Free Network Perspective

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dc.creatorHu, Mao-Bin
dc.creatorWang, Wen-Xu
dc.creatorJiang, Rui
dc.creatorWu, Qing-Song
dc.creatorWang, Bing-Hong
dc.creatorWu, Yong-Hong
dc.date2006-06-09
dc.date.accessioned2026-07-07T07:18:41Z
dc.date.available2026-07-07T07:18:41Z
dc.descriptionThis letter propose a new model for characterizing traffic dynamics in scale-free networks. With a replotted road map of cities with roads mapped to vertices and intersections to edges, and introducing the road capacity L and its handling ability at intersections C, the model can be applied to urban traffic system. Simulations give the overall capacity of the traffic system which is quantified by a phase transition from free flow to congestion. Moreover, we report the fundamental diagram of flow against density, in which hysteresis is found, indicating that the system is bistable in a certain range of vehicle density. In addition, the fundamental diagram is significantly different from single-lane traffic model and 2-D BML model with four states: free flow, saturated flow, bistable and jammed.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/physics/0606086
dc.identifierhttp://arxiv.org/abs/physics/0606086
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/114392
dc.subjectPhysics and Society
dc.subjectData Analysis, Statistics and Probability
dc.titleUrban Traffic Dynamics: A Scale-Free Network Perspective
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