172 resultados para Person miles of travel.
em University of Michigan
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Federal Highway Administration, Washington, D.C.
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Federal Highway Administration, Washington, D.C.
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Federal Highway Administration, Washington, D.C.
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Federal Highway Administration, Washington, D.C.
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Transportation Systems Center, Cambridge, Mass.
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Mode of access: Internet.
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Mode of access: Internet.
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Transportation Department, Office of the Assistant Secretary for Systems Development and Technology, Washington, D.C.
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Mode of access: Internet.
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"July 2002."
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Federal Highway Administration, Office of Safety and Traffic Operations, Washington, D.C.
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Federal Highway Administration, Washington D.C.
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Mode of access: Internet.
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Mode of access: Internet.
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National Highway Traffic Safety Administration, Washington, D.C.