1. Ph.D. Candidate, Dept. of Engineering Management, School of Civil Engineering, Central South Univ., 410075 Changsha, PR China.
2. Professor, Dept. of Engineering Management, School of Civil Engineering, Central South Univ., 410075 Changsha, PR China.
3. Assistant Professor, Dept. of the Built Environment, National Univ. of Singapore, 117566 Singapore, Singapore (corresponding author).
4. Ph.D. Candidate, Dept. of the Built Environment, National Univ. of Singapore, 117566 Singapore, Singapore. ORCID: .
5. Professor, School of Economics and Management, Chang’an Univ., 710064 Xi’an, PR China.