1. Transportation Economy and Management Liberal Arts Laboratory, Shandong Provincial Liberal Arts Laboratory, Shandong Jiaotong University, Jinan 250353, China
2. Sustainable Transportation Research Group, Civil Engineering, School of Engineering, University of Kwazulu Natal, Durban 4041, South Africa
3. Faculty of Transport and Traffic Engineering, University of East Sarajevo, Vojvode Mišića 52, 74000 Doboj, Bosnia and Herzegovina
4. Statistics and Operations Research Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
5. Department of International Trade & Commerce, Kyungsung University, Suyeong-ro, Nam-gu, Busan 48434, Republic of Korea