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The structure of interurban traffic: a weighted network analysis

De Montis, Andrea and Barthélemy, Marc and Chessa, Alessandro and Vespignani, Alessandro The structure of interurban traffic: a weighted network analysis. Environment and Planning B: Planning and Design, 34 (5). pp. 905-924. ISSN 0265-8135 (2007)

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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 in which vertices correspond to towns and the edges correspond to the actual commuting flows among those towns. We characterize quantitatively both the topological and weighted properties of the resulting network. Interestingly, the statistical properties of the commuting traffic exhibit complex features and nontrivial relations with the underlying topology. We characterize quantitatively the traffic backbone among large cities and we give evidence 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 sociodemographic 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.

Item Type: Article
Identification Number: 10.1068/b32128
Uncontrolled Keywords: PACS numbers: 89.75.-k, -87.23.Ge, 05.40.-a
Subjects: Q Science > QC Physics
Research Area: Economics and Institutional Change
Depositing User: Ms T. Iannizzi
Date Deposited: 07 Nov 2013 11:03
Last Modified: 20 Nov 2013 09:08
URI: http://eprints.imtlucca.it/id/eprint/1883

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