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NOTES: Revisions to previous estimates are all related to the development of the 1999 National Emissions Inventory (NEI). The...
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NOTES: Transit includes motor bus, heavy rail, commuter rail, light rail, ferryboat, trolley bus, demand responsive, and others. Motor bus...
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Modes included are heavy, commuter, and light rail; bus; demand responsive; trolley bus; ferryboat; vanpool; tramway; monorail; automated guideway;...
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NOTES: Water data are not included. On an average annual basis, 9 incidents are reported by vessels. Two injuries were reported in 1998; none in...
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SOURCES: Air, pipeline, and water—U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), National Transportation Statistics...
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NOTE: The 2001 National Household Travel Survey “travel period” data were not available when this report was prepared. Without these data, vacation trips and...
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NOTES: “Weather-related” includes poor visibility and high wind/ice; “All other” includes vessel incidents, lock equipment...
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SOURCES: All except as noted—U.S. Department of Transportation, Bureau of Transportation Statistics, "Government...
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NOTES: Full-size buses have more than 35 seats.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics,...
The following definitions apply to the discussion here:
Energy is measured in British thermal units (BTU). A passenger-mile traveled is one passenger transported one mile. A ton-mile is one ton transported one mile....