1. Research Associate, Dept. of Civil and Environmental Engineering, Univ. of Virginia, 351 McCormick Rd., Box 400742, Charlottesville, VA 22904-4742.
2. Associate Professor, Intelligent Transportation System Engineering Research Center, Southeast Univ., Nanjing, 210096, People’s Republic of China.
3. Associate Professor, Dept. of Civil Engineering, Univ. of Virginia, 351 McCormick Rd., Box 400742, Charlottesville, VA 22904-4742 (corresponding author).