1. Instructor, Dept. of Construction Management, East Carolina Univ., Rawl Building, Greenville, NC 27858; and Graduate Student, Dept. of Civil, Construction and Environmental Engineering, Univ. of Alabama, H.M. Comer, Tuscaloosa, AL 35487 (corresponding author).
2. Director of Construction Engineering and Management and Associate Professor, Dept. of Civil, Construction and Environmental Engineering, Univ. of Alabama, H.M. Comer, Tuscaloosa, AL 35487.
3. Associate Professor, Dept. of Civil, Construction and Environmental Engineering, Univ. of Alabama, H.M. Comer, Tuscaloosa, AL 35487.