1. Assistant Professor, Univ. of Kansas, 2159A Learned Hall, Lawrence, KS 66045 (corresponding author).
2. Transportation Engineer, HDR, 5426 Bay Center Dr. Suite 400, Tampa, FL 33619.
3. Professor and Director, Univ. of Florida, 365 Weil Hall, P.O. Box 116580, Gainesville, FL 32611.
4. Transportation Planner, Florida Dept. of Transportation, Systems Planning Office, 605 Suwannee St., Tallahassee, FL 32301.