Analysis of Community Structure and Evolution Characteristics in Shenzhen from the Perspective of Public Transport Travel
Spatial community is a geographical unit whose sub-units are closely related in a city.In the era of spatiotem-poral big data,the dynamic detection based on actual activities promotes the dynamic cognition for the evolution of urban spa-tial structure.Exploring the spatiotemporal evolution of pub-lic transit communities lays the foundation for improving the accessibility and equity of public transportation.Based on smart card data,this study employs community detection ap-proach to identify urban public transit communities,and ex-plores the structure and spatiotemporal evolution characteris-tics of public transit communities.This study is conducted for public transit in Shenzhen,using public transit data from 2015 to 2017.The results show that:(1)Urban public transit trav-el network shows a radioactive structure with Nanshan-Baoan、Futian-Longhua、Luohu-Longgang as the main axis;(2)The public transit network shows obvious community structure,and the newly opened rail transit lines have a significant impact on residents'travel community structure;(3)The public transit communities are in dynamic evolution;(4)The public transit communities and administrative units are spatially coupled.
public transit networkcommunity structuresmart cards for public transportdynamic evolution
NETL
NSTL
万方数据
