173 resultados para Traffic control


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Federal Highway Administration, Office of Research, Washington, D.C.

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Federal Highway Administration, Washington, D.C.

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Federal Highway Administration, Office of Implementation, Washington, D.C.

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New Mexico Traffic Safety Bureau, Santa Fe

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"FHWA-OP-05-012"--P. [4] of cover.

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Federal Highway Administration, Implementation Division, Washington, D.C.

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Texas Department of Transportation, Austin

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Federal Highway Administration, Office of Research, Washington, D.C.

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Texas Department of Transportation, Austin