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Changeable message signs.

by National Research Council (U.S.). Transportation Research Board | American Association of State Highway and Transportation Officials | United States. Federal Highway Administration.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington : Transportation Research Board, National Research Council, 1979Availability: Items available for loan: School of Civil and Environmental Engineering (SCEE)Call number: 625.795 (1).
Changeable message sign displays during non-incident, non-roadwork periods / consultant: Conrad L. Dudek.

by Dudek, Conrad L | National Research Council (U.S.). Transportation Research Board | National Cooperative Highway Research Program | American Association of State Highway and Transportation Officials | United States. Federal Highway Administration.

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Washington, D.C. : Transportation Research Board, 2008Online access: TRB access Availability: Items available for loan: School of Civil and Environmental Engineering (SCEE) (1).
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