1. Graduate Research Assistant, Glenn Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634 (corresponding author).
2. Assistant Professor, Dept. of Construction Management, Colorado State Univ., Fort Collins, CO 80523.
3. National Science Foundation Graduate Research Fellow, Glenn Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634.
4. Associate Professor, Glenn Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634.