Guidelines on the Use of Changeable Message Signs: Summary Report

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U.S. Department of Transportation, Federal Highway Administration, Office of Technology Applications, 1991 - Highway communications - 251 pages
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This report is intended to provide guidance on 1) selection of the appropriate type of Changeable Message Sign (CMS) display, 2) the design and maintenance of CMSs to improve target value and motorist reception of messages, and 3) pitfalls to be avoided, and it updates information contained in the Manual. The guidelines and updated information are based on research results and on practices being employed by highway agencies in the United States, Canada and Western Europe.

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Selected LightReflecting Matrix Changeable Message Signs
Selected LightEmitting Matrix Changeable Message Signs

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