955 resultados para Highway-railroad grade crossings
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Federal Highway Administration, Office of Research, Washington, D.C.
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Transportation Systems Center, Cambridge, Mass.
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Transportation Systems Center, Cambridge, Mass.
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"On July 30, 1998 Public Act 90-659 was signed into law requiring the Illinois Commerce Commission to publish annually a five year plan of projected safety improvements at public railroad crossings on local roads."
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Cover title.
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"August 1988."
The development of an improved railroad-highway grade crossing risk factor. Executive summry report.
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Ohio Department of Transportation, Columbus
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Ohio Department of Transportation, Columbus
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Federal Railroad Administration, Office of Rail Safety Research, Washington, D.C.
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Transportation Systems Center, Cambridge, Mass.
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Transportation Systems Center, Cambridge, Mass.
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Transportation Systems Center, Cambridge, Mass.
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Mode of access: Internet.
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Federal Highway Administration, Washington, D.C.
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Federal Highway Administration, Office of Research, Development and Technology, Washington, D.C.