1. Department of Transportation, Road Weather Management, Office of Operations, FHWA, U.S., 400 Seventh Street, S.W., HOTO-1, Room 3408, Washington, D.C. 20590
2. Intelligent Transportation Systems Division, Mitretek Systems, Center for Information and Telecommunications Technologies, 600 Maryland Avenue, S.W., Suite 755, Washington, D.C. 20024