1. Ph.D. Candidate, School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China.
2. Associate Professor, School of Project Management, Univ. of Sydney, Sydney, NSW 2006, Australia.
3. Professor, School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China (corresponding author).
4. Professor, School of Civil Engineering, Northeast Forestry Univ., Harbin 150040, China.