eprintid: 1883 rev_number: 6 eprint_status: archive userid: 6 dir: disk0/00/00/18/83 datestamp: 2013-11-07 11:03:39 lastmod: 2013-11-20 09:08:17 status_changed: 2013-11-07 11:03:39 type: article metadata_visibility: show creators_name: De Montis, Andrea creators_name: Barthélemy, Marc creators_name: Chessa, Alessandro creators_name: Vespignani, Alessandro creators_id: creators_id: creators_id: alessandro.chessa@imtlucca.it creators_id: title: The structure of interurban traffic: a weighted network analysis ispublished: pub subjects: QC divisions: EIC full_text_status: none keywords: PACS numbers: 89.75.-k, -87.23.Ge, 05.40.-a abstract: 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. date: 2007 date_type: published publication: Environment and Planning B: Planning and Design volume: 34 number: 5 publisher: Pion pagerange: 905-924 id_number: 10.1068/b32128 refereed: TRUE issn: 0265-8135 official_url: http://dx.doi.org/10.1068/b32128 related_url_url: http://arxiv.org/abs/physics/0507106 citation: 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)