Journal of South China University of Technology(Natural Science Edition) ›› 2024, Vol. 52 ›› Issue (5): 31-42.doi: 10.12141/j.issn.1000-565X.230302

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Coupling Analysis of Rail Transit Stations’ Network Centrality, Ridership and Spatial Heat Map

WU Jiaorong1,2(), CHEN Caiting1, DENG Yongqi2   

  1. 1.Urban Mobility Institute,Tongji University,Shanghai 201804,China
    2.Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China
  • Received:2023-05-08 Online:2024-05-25 Published:2023-11-09
  • About author:吴娇蓉(1973-),女,博士,教授,博士生导师,主要从事轨道交通与空间规划研究。
  • Supported by:
    the National Natural Science Foundation of China(52072263)

Abstract:

Urban spatial heat map reflects population aggregation and street vitality. In order to explore the interactive relationship between urban rail transit and spatial heat map, this study used Baidu heat map and rail transit station ridership data to analyze the coupling characteristics between network centrality, ridership and nearby spatial heat index of rail transit stations on a micro level, taking Shanghai as a case study. Firstly, it investigated the overall coupling relationship between two categories of station attributes and spatial heat through Pearson bivariate correlation analysis. Then, bivariate spatial autocorrelation and geographically weighted regression analysis methods were introduced to explore the spatial association patterns between network centrality and spatial heat, as well as between spatial heat and ridership, followed by a spatial differentiation comparison between the two coupling types. The results show that the coupling relationship between rail network centrality and spatial heat is obviously better than that between ridership and spatial heat at station level, since traffic location advantage can usually develop higher spatial heat, while ridership may be affected by more complex factors. Spatial heat map is more suitable for quantifying the interaction between rail transit and urban space in areas outside the urban core, where increasing rail network centrality has a multiplier effect on spatial heat improvement, but improving spatial heat in areas with low-density development is more conducive to stimulating ridership. It is feasible to evaluate the ridership potential of new stations outside the urban core area by using spatial heat map, but this data alone is not enough to predict ridership. The urban renewal around rail transit stations can be optimized by referring to the differences between the two types of coupling at different spatial locations. This study explored the analytical framework for improving the layout of rail transit network based on urban spatial heat map, and optimizing TOD (Transit-Oriented Development) stations for factors negatively affecting their coupling. It provides a new perspective for measuring the man-land relationship of urban rail transit on the micro level.

Key words: rail transit ridership, network centrality, spatial heat map, coupling relationship, geographically weighted regression

CLC Number: