Agglomeration centrality examination of cities: an urban transport perspective
作者： Gang Liu , Xiaobai Yao , Qinjin Fan , None
DOI: 10.1016/J.SCS.2020.102273
关键词: Population 、 Economic geography 、 Urban agglomeration 、 Geography 、 Economies of agglomeration 、 Centrality 、 Partition (politics) 、 Distribution (economics) 、 Perspective (geometry) 、 Scale (map)
摘要: Abstract Cities are complicated dynamic systems that result in the agglomerations of streets, population and socioeconomic activities. In this paper, we use partition method regular grid model to divide a city into small areas, introduce concept agglomeration centrality for describing characteristics local areas city. A new measure is defined considering penetrability roads within area from 2-dimension plane perspective. Based on this, overall intensity illustrate pattern macro level. Experiments set cities show distribution present power law phenomenon. Besides, results reveal crucial important phenomenon exponent related scale. The can be described using function with two terms has an upper limit. Moreover, find indicator useful reflect spatial street networks. summary, study develops perspective demonstrates its effectiveness understanding cities.
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