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Year: 2019 Publisher: [McLean, Va.] : United States Department of Transportation, Federal Highway Administration,
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Year: 1933 Publisher: Washington : United States Government Printing Office,
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Variable message signs --- Directories. --- Law and legislation
Book
ISBN: 9282523241 9282523233 9789282523230 9282523225 Year: 1983 Publisher: Luxembourg Commission of the European Communities
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Highway communications --- Electronic traffic controls --- traffic surveillance --- variable message signs
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Year: 2012 Publisher: Washington, DC : U.S. Department of Transportation, Research and Innovative Technology Administration,
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Highway communications --- Weather forecasting --- Variable message signs --- Traffic signs and signals --- Data processing.
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