List Understanding the effect of urban liveliness on walking behavior in 15-minute cities using a hybrid approach combining random forest-based SHAP model with random parameter negative binomial regression model Author Zhonghui Jiang, Hyung-Chul Chung, Tianlin Liu, Zhuo Liu, Hongliang Ding, Tiantian Chen, Tianqi Gu Journal Journal of Transport Geography Year 2025