1. Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, Canada M5S 1A4.
2. Assistant Professor and Director, Center for Information Systems in Infrastructure and Construction, Dept. of Civil Engineering, Univ. of Toronto, 35 St. George St., Toronto, Canada M5S 1A4.
3. Ph.D. Candidate, Dept. of Civil Engineering, Univ. Of Toronto, 35 St. George St., Toronto M5S 1A4, Canada.