1. Structural Designer, Read Jones Christoffersen Consulting Engineers, Suite 500, 144 Front St. W, Toronto, Canada M5J 2L7 (corresponding author).
2. Associate Professor, Univ. of Waterloo, Dept. of Civil and Environmental Engineering, Faculty of Engineering, Waterloo, Canada N2L 3G1.
3. Professor, Norman W. McLeod Chair in Sustainable Pavement Engineering, Univ. of Waterloo, Dept. of Civil and Environmental Engineering, Faculty of Engineering, Waterloo, Canada N2L 3G1.