1. School of Architecture, Huaqiao Univ., No. 668, Jimei Ave., Xiamen 361021, China (corresponding author).
2. Shenzhen Urban Transport Planning Center Co., Ltd., Floor 10, Building B, Shenzhen Bay Science and Technology Ecological Park, Keji South Rd., Nanshan District, Shenzhen 518057, China.
3. Guangzhou Transport Planning Research Institute Co., Ltd., West of No. 10 Guangwei Rd., Yuexiu District, Guangzhou 510030, China.
4. Qingdao Urban Planning & Design Research Institute, 55 Hong Kong West Rd., Southern District, Qingdao 266071, China.