Elaborating non-linear associations and synergies of subway access and land uses with urban vitality in Shenzhen

Jiawen Yang, Jason Cao, Yufei Zhou

Research output: Contribution to journalArticlepeer-review

Abstract

Previous studies on the built environment and urban vitality often assume that they follow a pre-defined (mostly linear in parameters) relationship, and few studies substantiate whether high-quality transit (T) and supportive land development (D) are synergistic to vibrant urban places. This study employs gradient boosting decision trees to examine the irregularly non-linear associations between the built environment and urban vitality, using Shenzhen as the case study and the Baidu Heat Index as a proxy for vitality. It reveals that their associations change drastically past some thresholds of built environment attributes, and that there are non-linear synergies between T and D. The findings provide guidance for neighborhood planning and have implications for cities that seek transit investments and transit-oriented development.

Original languageEnglish (US)
Pages (from-to)74-88
Number of pages15
JournalTransportation Research Part A: Policy and Practice
Volume144
DOIs
StatePublished - Feb 2021

Bibliographical note

Funding Information:
This research was funded by the National Natural Science Foundation of China ( 51678004 ).

Keywords

  • Baidu heat
  • Built environment
  • Interaction effect
  • Rail transit
  • Transit-oriented development

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