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 R196,800 217,533 U
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 U
Locomotives N 419 318 378 U
Commuter railcars and locomotives N 4,500 4,415 P5,073 U
Transitc 10,548 10,654 11,332 P12,168 U
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 d, e 19,377 31,662 31,209 33,152 U
Self-propelled vesselse 6,455 7,126 8,236 8,202 U
Oceangoing shipse (1,000 gross tons and over) 1,579 864 636 R454 443
Recreational boatsf R5,128,345 8,577,857 10,996,253 12,782,143 12,884,166

a In July 1997, the USDOT, Federal Highway Administration, reassigned some 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 do not exist; P = preliminary; U = unavailable; R = revised.

Sources: Various sources, as cited in USDOT, BTS, National Transportation Statistics 2002 (Washington, DC: 2002); table 1-9; air carriers 2000-2001-Aerospace Industries Association, Aerospace Facts & Figures (Washington DC: 2002/2003), "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; oceangoing ships 2000-2001-USDOT, Maritime Administration, Office of Statistical & Economic Analysis, personal communication, 2002; recreational boats 2001-U.S. Coast Guard, personal communication, 2002.