1. Associate Professor, Dept. of Civil and Environmental Engineering, Univ. of Delaware, Newark, DE 19716.
2. Transportation Systems Analyst, Dept. of Civil and Environmental Engineering, Univ. of Delaware, Newark, DE 19716.
3. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Delaware, Newark, DE 19716.
4. Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Delaware, Newark, DE 19716.