1. Department of Engineering Management, School of Civil Engineering, Central South University, Changsha 410075, China
2. Department of the Built Environment, School of Design and Environment, National University of Singapore, Singapore 117566, Singapore
3. School of Economics and Management, Chang’an University, Xi’an 710064, China
4. Department of Engineering Management, School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454003, China