1. Assistant Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Drive, Raleigh, NC 27695.
2. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Drive, Raleigh, NC 27695 (corresponding author).
3. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Drive, Raleigh, NC 27695.
4. Teaching Instructor, Dept. of Construction Management, East Carolina Univ., 329 Rawl Building, Mailstop 307, Greenville, NC 27858.
5. Graduate Student, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., 2501 Stinson Drive, Raleigh, NC 27695.