[1] Changsha Univ Sci & Technol, Key Lab Highway Engn, Minist Educ, Changsha 410114, Hunan, Peoples R China
[2] Univ New South Wales, Sch Comp Sci & Engn, Sydney, NSW 2052, Australia
[3] Univ New South Wales, Sch Civil & Environm Engn, Res Ctr Integrated Transport Innovat, Sydney, NSW 2052, Australia
[4] Univ Hong Kong, Dept Ind & Mfg Syst Engn, Hong Kong, Peoples R China