1. Transportation Systems Program, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0355.
2. City Planning Program, School of Architecture, Georgia Institute of Technology, Atlanta, GA 30332-0155.
3. FHWA, Office of Planning, HEPP-30, U.S. Department of Transportation, 1200 New Jersey Avenue SE, Washington, D.C. 20590.