1. Assistant Professor, Dept. of Construction Management, East Carolina Univ., 329 Rawl Building, Mailstop 307, Greenville, NC 27858.
2. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Dr., Raleigh, NC 27695 (corresponding author).
3. Assistant Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Dr., Raleigh, NC 27695.
4. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Dr., Raleigh, NC 27695.
5. Graduate Student, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Dr., Raleigh, NC 27695.
6. Professor, Dept. of Industrial Engineering, Texas Tech Univ., Lubbock, TX 79409.