1. Assistant Professor, Dept. of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
2. Assistant Professor, Dept. of Civil Engineering, Univ. of Memphis, 112D Engineering Science Building, 3815 Central Ave., Memphis, TN 38152 (corresponding author).
3. Professor and Director, Center for Advanced Transportation and Infrastructure Engineering Research, Dept. of Civil Engineering, Morgan State Univ., 1700 East Cold Spring Lane, Baltimore, MD 21251.