235 resultados para road traffic control
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Texas Department of Transportation, Austin
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Federal Highway Administration, Office of Research and Development, Washington, D.C.
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Federal Highway Administration, Office of Research, Washington, D.C.
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Federal Highway Administration, Office of Research, Washington, D.C.
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Mode of access: Internet.
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Issued Apr. 1978.
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Includes bibliographical references.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"No. 86."
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"No. 85."
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Mode of access: Internet.
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Mode of access: Internet.
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"May 13, 1981."