1. Associate Professor, Dept. of Traffic Engineering, Tongji Univ., No. 4800, Cao’an Rd., Shanghai 201804, China (corresponding author).
2. Research Associate, Dept. of Traffic gineering, Tongji Univ., No. 4800, Cao’an Rd., Shanghai 201804, China.
3. Ph.D. Candidate, Graduate School of Information Sciences, Tohoku Univ., Aramaki Aoba 6-3-09, Aoba-ku, Sendai, Miyagi 9808579, Japan.
4. Ph.D. Candidate, Dept. of Traffic Engineering, Tongji Univ., No. 4800, Cao’an Rd., Shanghai 201804, China.