1. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, 3140 Newmark Civil Engineering Bldg., 205 North Mathews Ave., Urbana, IL 61801.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, 3140 Newmark Civil Engineering Bldg., 205 North Mathews Ave., Urbana, IL 61801 (corresponding author).
3. Assistant Professor, Dept. of Construction Engineering and Management, King Fahd Univ. of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.