4-2 Number of Aircraft, Railcars, Vehicles, and Vessels: 1990-2007

4-2 Number of Aircraft, Railcars, Vehicles, and Vessels: 1990-2007

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Mode R1990 R2000 R2006 2007
Air        
Air carrier 6,083 8,055 8,089 8,044
General aviation 198,000 217,533 221,943 231,607
Highway        
Automobiles 133,700,496 133,621,420 135,399,945 135,932,930
Other 2-axle, 4-tire vehiclesa 48,274,555 79,084,979 99,124,775 101,469,615
Buses(municipally owned transit and commercial, federal, and school buses) 626,987 746,125 821,959 834,436
Motorcycles 4,259,462 4,346,068 6,678,958 7,138,476
Trucks        
Single-unit 4,486,981 5,926,030 6,649,337 6,806,630
Combination 1,708,895 2,096,619 2,169,670 2,220,995
Rail-Passenger        
Amtrak-Cars 1,863 1,894 1,191 1,164
Amtrak-Locomotives 318 378 319 270
Commuter railcars and locomotives 4,982 5,498 6,403 6,391
Transitb 11,477 11,638 12,853 13,032
Rail-freight        
Class I-Freight cars 658,902 560,154 475,415 460,172
Class I-Locomotives 18,835 20,028 23,732 24,143
Other freight carsc 553,359 820,642 871,092 925,537
Waterborne        
Nonself-propelled vessels (barges)d,e 31,209 33,152 32,211 31,654
Self-propelled vesselsd,e 8,236 8,202 8,898 9,041
Oceangoing shipse (1,000 gross tons and over) 635 461 272 275
Recreational boats(numbered boats) 10,996,253 12,782,143 12,746,126 12,875,568

a Includes vans, pickup trucks, sport utility vehicles, and other 2-axle, 4-tire motor vehicles that are not passenger cars. b Includes light and heavy rail transit only. c Includes Non-class I and car companies' and shippers' freight cars only. d See Glossary for definitions. e U.S.-flag vessels. 1990 and 2000 data include private and government owned vessels of 1,000 gross tons and over. Beginning in 2006, data are for privately-owned vessels of 1,000 gross tons and over.

Key: R = revised.

Notes: Transit, commuter rail, oceangoing ships, and motorcycles data for 2006 are revised. Transit and oceangoing ships data for 1990 and 2000 are revised, as is commuter rail data for 1990.

Sources: Air-Federal Aviation Administration, Highway-Federal Highway Administration, Rail: Amtrak and Association of American Railroads, Transit-American Public Transportation Association, Waterborne-U.S. Army, Corps of Engineers and U.S. Coast Guard as cited in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 1-11, available at http://www.bts.gov as of January 2010.