1. John Roebling Prof., Dir., Drexel Intelligent Infrastructure and Transp. Safety Inst. (D13), Drexel Univ., Philadelphia, PA 19104.
2. Res. Asst. Prof., Drexel Intelligent Infrastructure and Transp. Safety Inst. (DI3), Drexel Univ., Philadelphia, Pa.
3. Assoc. Res. Engr., Drexel Intelligent Infrastructure and Transp. Safety Inst. (DI3), Drexel Univ., Philadelphia, PA.
4. Assoc. Dir., Drexel Intelligent Infrastructure and Transp. Safety Inst. (DI3), Drexel Univ., Philadelphia, PA.