958 resultados para guard-rail
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Federal Railway Administration, Office of Safety, Washington, D.C.
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Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin
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Urban Mass Transportation Administration, Washington, D.C.
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Mode of access: Internet.
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Transportation Systems Center, Cambridge, Mass.
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Federal Railroad Administration, Office of Research and Development, Washington, D.C.
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Federal Railroad Administration, Office of Research and Development, Washington, D.C.
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Federal Railroad Administration, Office of Research and Development, Washington, D.C.
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Federal Highway Administration, Washington, D.C.
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Federal Railroad Administration, Office of Research and Development, Washington, D.C.
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Texas Department of Transportation, Austin
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National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.
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National Highway Traffic Safety Administration, Washington, D.C.
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"A special thanks to CMSgt Dan Roberson (NGB), MSgt Gary Clark (189AW) and TSgt Brian Irvin (109AW) for their research and contributions to this abbreviated Air National Guard Enlisted Aircrew history"--P. [4] of cover.
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National Highway Traffic Safety Administration, Washington, D.C.