215 resultados para Highway maintenance.


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Turner-Fairbank Highway Research Center, Office of Safety Research and Development, McLean, Va.

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National Highway Traffic Safety Administration, Office of Driver and Pedestrian Safety, Washington, D.C.

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Transportation Systems Center, Cambridge, Mass.

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Transportation Department, Secretary of Transportation, Washington, D.C.

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"July 1, 1955."

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Cover title.

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Indiana Department of Transportation, Indianapolis