Table 9 Number of Aircraft, Railcars, Vehicles, and Vessels

Table 9 Number of Aircraft, Railcars, Vehicles, and Vessels

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Mode 1970 1980 1990 2000 2001
Air carriers 2,679 3,808 6,083 8,055 8,497
General aviation 131,743 211,045 198,000 217,533 211,446
Passenger carsa 89,243,557 121,600,843 133,700,496 133,621,420 137,633,467
Motorcycles 2,824,098 5,693,940 4,259,462 4,346,068 4,903,056
Other 2-axle, 4-tire vehicles 14,210,591 27,875,934 48,274,555 79,084,979 84,187,636
Trucks:          
Single-unit 3,681,405 4,373,784 4,486,981 5,926,030 5,703,500
Combination 905,082 1,416,869 1,708,895 2,096,619 2,154,174
Busesb 377,562 528,789 626,987 746,125 749,548
Passenger rail:          
Amtrak-Cars N 2,128 1,863 1,894 2,084
Locomotives N 419 318 378 401
Commuter railcars and locomotives N 4,500 4,415 5,073 P5,124
Transitc 10,548 10,654 11,332 12,168 P12,084
Class I rail:          
Freight cars 1,423,921 1,168,114 658,902 560,154 499,860
Locomotives 27,077 28,094 18,835 20,028 19,745
Other freight cars 360,260 542,713 553,359 820,642 814,276
Nonself-propelled vessels (barges)d,e 19,377 31,662 31,209 33,152 33,042
Self-propelled vesselsd,e 6,455 7,126 8,236 8,202 8,546
Oceangoing shipse (1,00 0 gross tons and over) 1,579 864 636 454 443
Recreational boatsf 5,128,345 8,577,857 10,996,253 12,782,143 R12,876,346

a In July 1997, the USDOT, Federal Highway Administration, reassigned some vehicles, e.g., sport utility vehicles, from "passenger car" to "other 2-axle, 4-tire."

b Includes municipally owned transit, commercial, federal, and school buses.

c Includes light and heavy rail only.

d See glossary.

e U.S.-flag vessels.

f Numbered boats.

Key: N = data are nonexistent; P = preliminary; R = revised.

Sources: All data, except as noted-various sources, as cited in USDOT, BTS, National Transportation Statistics 2002(Washington, DC: 2002), table 1-11. Air carriers 2001-Aerospace Industries Association, Aerospace Facts & Figures (Washington, DC: 2003/2004), "Active U.S. Air Carrier Fleet." 2001 Class I rail-Association of American Railroads, Class I Railroad Statistics, available at http://www.aar.org/AboutTheIndustry/AboutTheIndustry.asp, as of Oct. 2002. Passenger rail 2001-Association of American Railroads, Railroad Profiles, available at http://www.aar.org/AboutTheIndustry/RailroadProfiles.asp, as of November 2003