1. Joint Assistant Professor, Dept. of Civil and Environmental Engineering, 3505 CEBA Building, Louisiana State Univ. and Southern Univ., Baton Rouge LA 70803 (corresponding author).
2. Research Assistant Professor, Louisiana Transportation Research Center, Louisiana State Univ., 4101 Gourrier Ave., Baton Rouge, LA 70808.
3. Formerly, Graduate Student, Louisiana State Univ., Baton Rouge, LA 70808.