1. Department of Construction and Real Estate, School of Civil Engineering, Southeast University, Nanjing 211189, China
2. School of Management, Shanghai University, Shanghai 200444, China
3. Institute of Regional and Urban Development of Shanghai University, Shanghai 200444, China
4. Department of Engineering Management, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
5. Department of Architecture and Civil Engineering, City University of Hong Kong, Tat Chee Ave., Kowloon Tong, Kowloon, Hong Kong