1. Research Assistant, School of Transportation, Southeast Univ., 2 Southeast University Rd., Nanjing 210000, China.
2. Postdoctoral Fellow, Dept. of Logistics and Maritime Studies, Hong Kong Polytechnic Univ., Hung Hom, Hong Kong.
3. Research Associate, Huawei Technologies Co., Ltd., No. 3 Xinxi Rd., Haidian District, Beijing 100000, China.
4. Professor, School of Transportation, Southeast Univ., 2 Southeast University Rd., Nanjing 210000, China (corresponding author).