1. Department of Civil Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
2. Ministry of Transportation of Ontario, Central Building, Room 232, 1201 Wilson Avenue, Downsview, Ontario M3M 1J8, Canada
3. Stantec Consulting Ltd., 1122 4th Street, SW, Suite 300, Calgary AB T2R 1M1, Canada