1. Professional Engineer and Scientist, Australian Road Research Board, 80A Turner St., Port Melbourne, VIC 3025, Australia.
2. Professor and Chair, Dept. of Civil and Environmental Engineering, Univ. of North Carolina, EPIC 3252, Charlotte, NC 28223 (corresponding author).
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Michigan State Univ., East Lansing, MI 48824.
4. Lead Engineer, CCP Engineering, Buck and Marshall Steam Stations, Duke Energy, 400 S. Tryon St., Charlotte, NC 28202.