dorsal/arxiv
View SchemaUrban Traffic Dynamics: A Scale-Free Network Perspective
| Authors | Mao-Bin Hu, Wen-Xu Wang, Rui Jiang, Qing-Song Wu, Bing-Hong Wang, Yong-Hong Wu |
|---|---|
| Categories | |
| ArXiv ID | physics/0606086 |
| URL | https://arxiv.org/abs/physics/0606086 |
Abstract
This 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.
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"date_created": "2026-03-02T18:01:11.019000Z",
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"abstract": "This letter propose a new model for characterizing traffic dynamics in\nscale-free networks. With a replotted road map of cities with roads mapped to\nvertices and intersections to edges, and introducing the road capacity L and\nits handling ability at intersections C, the model can be applied to urban\ntraffic system. Simulations give the overall capacity of the traffic system\nwhich is quantified by a phase transition from free flow to congestion.\nMoreover, we report the fundamental diagram of flow against density, in which\nhysteresis is found, indicating that the system is bistable in a certain range\nof vehicle density. In addition, the fundamental diagram is significantly\ndifferent from single-lane traffic model and 2-D BML model with four states:\nfree flow, saturated flow, bistable and jammed.",
"arxiv_id": "physics/0606086",
"authors": [
"Mao-Bin Hu",
"Wen-Xu Wang",
"Rui Jiang",
"Qing-Song Wu",
"Bing-Hong Wang",
"Yong-Hong Wu"
],
"categories": [
"physics.soc-ph",
"physics.data-an"
],
"title": "Urban Traffic Dynamics: A Scale-Free Network Perspective",
"url": "https://arxiv.org/abs/physics/0606086"
},
"schema_id": "dorsal/arxiv",
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"execution_id": "f2ce8223-df26-4498-83b4-ec404bf62737",
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