1. Associate Professor, Dept. of Civil Engineering, McMaster Univ., Hamilton ON, Canada L8S 4L7.
2. Technical Research Officer, Institute for Research in Construction, National Research Council Canada, Ottawa ON, Canada K1A 0R6.
3. Professor, Dept. of Civil and Environmental Engineering, Carleton Univ., Ottawa ON, Canada K1S 5B6.
4. Principal Research Officer, Institute for Research in Construction, National Research Council Canada, Ottawa ON, Canada K1A 0R6.