1. Professor, Dept. of Civil and Environmental Engineering, Rutgers Univ., 623 Bowser Road, Piscataway, NJ 08854-8014.
2. Associate Professor, Dept. of Civil Engineering, North Carolina State Univ., Raleigh, NC 27695-7908.
3. Assistant Professor, Dept. of Construction Management, East Carolina Univ., 327 Rawl Hall, Greenville, NC.