1. Assistant Professor, Dept. of Civil Engineering, Univ. of British Columbia, 6250 Applied Science Lane, Vancouver BC, Canada V6T 1Z4. E-mail: ssf@civil.ubc.ca
2. Professor, Dept. of Civil Engineering, Univ. of British Columbia, and Chair, Computer Integrated Design and Construction, 6250 Applied Science Lane, Vancouver BC, Canada V6T 1Z4. E-mail: adr@civil.ubc.ca
3. Research Assistant, Dept. of Civil Engineering, Univ. of British Columbia, 6250 Applied Science Lane, Vancouver BC, Canada V6T 1Z4. E-mail: ngoctran@civil.ubc.ca