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A topological pattern of urban street networks: universality and peculiarity
Department of Land Surveying and Geo-informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.ORCID iD: 0000-0002-2337-2486
2007 (English)In: Physica A: Statistical Mechanics and its Applications, ISSN 0378-4371, E-ISSN 1873-2119, Vol. 384, no 2, 647-655 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we derive a topological pattern of urban street networks using a large sample (the largest so far to the best of our knowledge) of 40 US cities and a few more from elsewhere of different sizes. It is found that all the topologies of urban street networks based on street-street intersection demonstrate a small world structure, and a scale-free property for both street length and connectivity degree. More specifically, for any street network, about 80% of its streets have length or degrees less than its average value, while 20% of streets have length or degrees greater than the average. Out of the 20%, there are less than 1 % of streets which can form a backbone of the street network. Based on the finding, we conjecture that the 20% streets account for 80% of traffic flow, and the I% streets constitute a cognitive map of the urban street network. We illustrate further a peculiarity about the scale-free property.

Place, publisher, year, edition, pages
2007. Vol. 384, no 2, 647-655 p.
Keyword [en]
urban street networks; small world; scale free; self-organizing cities; cognitive maps
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:hig:diva-2633DOI: 10.1016/j.physa.2007.05.064ISI: 000249942400047OAI: oai:DiVA.org:hig-2633DiVA: diva2:119295
Available from: 2007-10-03 Created: 2007-10-03 Last updated: 2016-10-17Bibliographically approved

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