1. Assistant Professor, Hole School of Construction Engineering, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton AB Canada T6G 2W2.
2. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, Urbana–Champaign, IL 61801.
3. Professor, Construction Management and Information Technology, Dept. of Civil and Environmental Engineering, Univ. of Illinois at Urbana–Champaign, Urbana–Champaign, IL 61801.