Guidelines on the use of changeable message signs : summary report /
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Format: | Book |
Language: | English |
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McLean, Va. : [Springfield, Va. :
U.S. Dept. of Transportation, Federal Highway Administration, Office of Research and Development ; Available through the National Technical Information Service,
1991]
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Guidelines on the use of changeable message signs : summary report.
McLean, Va. : [Springfield, Va.] : U.S. Dept. of Transportation, Federal Highway Administration, Office of Research and Development, Turner-Fairbank Highway Research Center ; [Available to the public through the National Technical Information Service], 1991
Format:
Government Document
Book
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