详情

原文传递 Revealing Urban Community Structures by Fusing Multisource Transportation Data

题名：	Revealing Urban Community Structures by Fusing Multisource Transportation Data
正文语种：	eng
作者：	Shuo Ding;Michael Zhang;Yingying Xing;Jian Lu
作者单位：	Key Laboratory of Road and Traffic Engineering Ministry of Education Tongji Univ. Shanghai 201804 China;Dept. of Civil and Environmental Engineering Univ. of California Davis CA 95616;Key Laboratory of Road and Traffic Engineering Ministry of Education Tongji Univ. Shanghai 201804 China;Key Laboratory of Road and Traffic Engineering Ministry of Education Tongji Univ. Shanghai 201804 China
关键词：	Urban community structure; Multisource transportation data; Spatially embedded network; Community detection; Urban planning
摘要：	Revealing urban community structures of a city is of great importance for investigating urban development and sprawl behind the movement dynamics. However, most studies focus on delineating urban community structure and its variations with a single transit mode without covering hierarchical travel distances. This paper proposes an overarching framework to reveal urban community structures by fusing multisource spatiotemporal transportation data. Network science methods and community detection are applied to construct spatially embedded networks and uncover the urban structure from different perspectives, using 1-week transportation data derived from the metro, taxi, and dockless bike-sharing systems (BSSs) of Shanghai, China, in year 2016. Our finding shows that Shanghai can be clustered into six primary communities and exhibits polycentric patterns with strong monocentric characteristics. Shanghai's urban structure moves toward an embedded hierarchical pattern: the dispersed monocentric structure and the centralized polycentric structure. It reflects poor functional interdependence and horizontal connectivity between communities. Beneath the complex and coupled travel-flow system, the metro dominants the basic framework of the urban community structure and contributes to form the prototype of the core community, while the taxi and BSS tend to play complementary roles like expanding, enhancing, and refining the structure. This research not only provides a promising bridge from the complex urban transportation networks to urban community structures, but also implies potential urban planning policies from an internal and comprehensive perspective.
出版年：	2022
期刊名称：	Journal of Transportation Engineering
卷：	148
期：	9
页码：	04022060.1-04022060.18