60 resultados para Flashing traffic signals.
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"Revises and supersedes the Manual of regulations published in 1943."
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Texas Department of Transportation, Research and Technology Transfer Office, Austin
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Federal Highway Administration, Office of Implementation, Washington, D.C.
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Federal Highway Administration, Office of Implementation, Washington, D.C.
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Federal Highway Administration, Office of Research and Development, Washington, D.C.
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Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin
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Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin
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Transportation Department, Office of University Research, Washington, D.C.
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Federal Highway Administration, Washington, D.C.
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Oklahoma Department of Transportation, Oklahoma City
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Federal Highway Administration, Washington, D.C.
Relative visibility of increased legend size vs. brighter materials for traffic signs. Final report.
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Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.
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"Report no. FHWA-TO-80-1."
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Federal Highway Administration, Washington, D.C.
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Ohio Department of Transportation, Columbus