1. Ph.D. Student, Construction Engineering and Project Management Program, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Texas at Austin, 301 E. Dean Keeton St. C1752, Austin, TX 78712-1094 (corresponding author).
2. Associate Professor, Construction Engineering and Project Management Program, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Texas at Austin, 301 E. Dean Keeton St. C1752, Austin, TX 78712-1094.