1. Professor, Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102.
2. Visiting Professor, School of Automobile, Chang’an Univ., China; and Professor, Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102 (corresponding author).
3. Professor, Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102.
4. Research Assistant, Interdisciplinary Program in Transportation, New Jersey Institute of Technology, Newark, NJ 07102.