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arXiv physics/0507106physics.soc-phcond-mat.dis-nnphysics.data-an
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城市间交通结构的加权网络分析

The structure of Inter-Urban traffic: A weighted network analysis

Andrea De Montis, Marc Barthelemy, Alessandro Chessa, Alessandro Vespignani

摘要:

我们研究的网络结构,代表城市间的通勤交通的撒丁岛地区,意大利,这相当于375个城市和160万居民。我们使用加权网络表示,其中顶点对应于城镇,边缘对应于这些城镇之间的实际通勤流。我们定量地描述所得到的网络的拓扑和加权性质。有趣的是,通勤交通的统计特性表现出复杂的功能和非平凡的关系与底层的拓扑结构。我们定量地描述了大城市之间的交通骨干,我们给出了证据,一个非常高的异质性大城市周围的通勤流。我们还讨论了网络的拓扑和动力学性质之间的相互作用,以及它们与人口和月收入等社会人口变量的关系。这种分析在环境规划的各个阶段可能是有用的,并为从影响评价到决策和规划支助的广泛应用提供了分析工具。

英文摘要:

We study the structure of the network representing the interurban commuting traffic of the Sardinia region, Italy, which amounts to 375 municipalities and 1,600,000 inhabitants. We use a weighted network representation where vertices correspond to towns and the edges to the actual commuting flows among those. We characterize quantitatively both the topological and weighted properties of the resulting network. Interestingly, the statistical properties of commuting traffic exhibit complex features and non-trivial relations with the underlying topology. We characterize quantitatively the traffic backbone among large cities and we give evidences for a very high heterogeneity of the commuter flows around large cities. We also discuss the interplay between the topological and dynamical properties of the network as well as their relation with socio-demographic variables such as population and monthly income. This analysis may be useful at various stages in environmental planning and provides analytical tools for a wide spectrum of applications ranging from impact evaluation to decision-making and planning support.

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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