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 language||English (US)|
|Number of pages||15|
|Journal||Transportation Research Part A: Policy and Practice|
|State||Published - Feb 2021|
Bibliographical noteFunding Information:
This research was funded by the National Natural Science Foundation of China ( 51678004 ).
- Baidu heat
- Built environment
- Interaction effect
- Rail transit
- Transit-oriented development