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

Jiawen Yang, Jason Cao and Yufei Zhou

Transportation Research Part A: Policy and Practice, 2021, vol. 144, issue C, 74-88

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.

Keywords: Baidu heat; Transit-oriented development; Rail transit; Interaction effect; Built environment (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (18)

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DOI: 10.1016/j.tra.2020.11.014

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