1. Postdoctoral Fellow, School of Architecture, South China Univ. of Technology, Tianhe District, Guangzhou 510641, China.
2. Assistant Professor, Dept. of Urban and Regional Planning, Sun Yat-sen Univ., Haizhu District, Guangzhou 510275, China (corresponding author).
3. Professor, Dept. of Urban Planning and Design, Univ. of Hong Kong, Hong Kong 999077.
4. Professor, Dept. of Building and Real Estate, Hong Kong Polytechnic Univ., Hong Kong 999077.