1. C. T. Wells Professor of Project Management, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Texas at Austin, 1 Univ. Station C1752, Austin, TX 78712.
2. Associate Professor, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Texas at Austin, 1 Univ. Station C1752, Austin, TX 78712.
3. Ph.D. Candidate, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Texas at Austin, 1 Univ. Station C1752, Austin, TX 78712 (corresponding author).