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Crash Category Fatalities in categorya Alcohol involve-mentb Percentc Occupants 35,555 14,386 40 Single-vehicle crashes 18,402 9,188 50 Two-...Excel | CSV
Category Number % Passenger car occupants 16,520 38.39 Light-truck occupants 12,413 28.85 Motorcycle riders 5,154 11.98 Pedestrians struck by motor vehicles 4,654 10.82 Large...Excel | CSV
Mode R1990 R2005 R2006 2007 Air Large air carriera 39 22 50 1 Commuter air carriera 6 0 2 0 On-demand air taxia 51 18 16 43 General...Excel | CSV
Mode 1990 2000 2006 R2007 Total all bridges 572,205 589,674 597,340 599,766 Urban 108,770 133,384 146,041 151,171 Rural 463,435 456,290 451,299 448,595 Structurally deficient...Excel | CSV
Mode Components Highway Public roads 46,893 miles of Interstate highway116,573 miles of other National Highway System roads3,869,541 miles of other roads Air Public-use airports 5,233...Statistics published in this Pocket Guide to Transportation come from many different sources. Some statistics are based on samples and are subject to sampling variability. Statistics may also be subject to omissions and errors in reporting, recording, and processing.
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America's transportation system continues to change along with the population, work force, and economy. The following table puts those changes in perspective:
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Context 1990 2007 Resident population (thousand) 248,791 301,621 Total area...Air carrier - Certificated provider of scheduled and nonscheduled services.
Chained dollars - A method to measure real changes in dollar values between years that uses chain - type indexes, rather than constant dollars. The method first calculates the real changes...
Index: 1990 = 1.0
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Year Carbon monoxide Nitrogen oxides Volatile organic compounds PM-10; PM-2.5 Surfur dioxide Ammonia ...Index: 1990 = 1.0
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Key: R = revised, PM-10 = airborne particulates of less than 10 microns, PM-2.5 = airborne particulates of less than 2.5...