1. Associate Professor, Institute of Project Management, School of Mechanics & Civil Engineering, China Univ. of Mining and Technology, Jiangsu Province, Xuzhou 221116, China; Visiting scholar, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742 (corresponding author).
2. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742.
3. Ph.D. Student, Institute of Project Management, School of Mechanics & Civil Engineering, China Univ. of Mining and Technology, Jiangsu Province, Xuzhou 221116, China.
4. Professor, Institute of Project Management, School of Mechanics & Civil Engineering, China Univ. of Mining and Technology, Jiangsu Province, Xuzhou 221116, China.
5. Graduate Student, Institute of Project Management, School of Mechanics & Civil Engineering, China Univ. of Mining and Technology, Jiangsu Province, Xuzhou 221116, China.