157 resultados para Warning Signs
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Federal Highway Administration, Office of Research, Washington, D.C.
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Transportation Department, Research and Special Programs Administration, Washington, D.C.
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Oklahoma Department of Transportation, Oklahoma City
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Mode of access: Internet.
Effectiveness of changeable message signs in controlling vehicle speeds in work zones. Final report.
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Virginia Department of Transportation, Richmond
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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Federal Highway Administration, Office of Crash Avoidance Research, Washington, D.C.
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Federal Highway Administration, Traffic Systems Division, Washington, D.C.
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"January 2003."
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Mode of access: Internet.
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CIS Microfiche Accession Numbers: CIS 89 H381-7
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Mode of access: Internet.
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Federal Highway Administration, Office of Research and Development, Washington, D.C.
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Turner-Fairbank Highway Research Center, McLean, Va.
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Mode of access: Internet.