[1] Univ Malaya, Fac Engn, Dept Civil Engn, Ctr Transportat Res, Kuala Lumpur 50603, Malaysia
[2] Univ Malaya, Fac Comp Sci & Informat Technol, Dept Comp Syst & Informat Technol, Kuala Lumpur 50603, Malaysia
[3] Univ Waterloo, Fac Engn, Dept Civil & Environm Engn, Ctr Pavement & Transportat Technol, Waterloo, ON N2L 3G1, Canada
[4] Univ Nis, Fac Mech Engn, Nish 18000, Serbia