1. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada T6G 2R3 (corresponding author).
2. Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Waterloo, ON, Canada N2L 3G1.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Waterloo, ON, Canada N2L 3G1; Professor, Intelligent Transportation Systems Research Center, Wuhan Univ. of Technology, Wuhan, Hubei, China.
4. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Waterloo, ON, Canada N2L 3G1.