1. Ph.D. Candidate, Center for Transportation Research (CTR), Faculty of Engineering, Univ. of Malaya, 50603 Kuala Lumpur, Malaysia (corresponding author). E-mail: mohamadhadi.almasi@gmail.com
2. Postdoctoral Research Fellow, School of Civil, Environmental and Architectural Engineering, Korea Univ., Seoul 136-713, South Korea. E-mail: ali.sadollah1364@gmail.com
3. Ph.D. Candidate, Center for Transportation Research (CTR), Faculty of Engineering, Univ. of Malaya, 50603 Kuala Lumpur, Malaysia. E-mail: sinamm.1981@gmail.com
4. Professor, Center for Transportation Research (CTR), Faculty of Engineering, Univ. of Malaya, 50603 Kuala Lumpur, Malaysia. E-mail: rehan@um.edu.my