Table 3-2: Number of U.S. Vehicles, Vessels, and Other Conveyances (Historical)

Table in Excel format

	1980	1990	2000	2001	2002	2003	2004
Highway	161,490,159	193,057,376	225,821,241	235,331,381	234,624,135	236,760,033	243,023,486
Truck, single-unit 2-axle 6-tire or more	4,373,784	4,486,981	5,926,030	5,703,500	5,650,619	(R) 5,848,523	6,161,028
Truck, combination	1,416,869	1,708,895	2,096,619	2,154,174	2,276,661	(R) 1,908,365	2,010,335
Truck, total	5,790,653	6,195,876	8,022,649	7,857,674	7,927,280	(R) 7,756,888	8,171,363
Trucks as percent of all highway vehicles	3.6	3.2	3.6	3.3	3.4	(R) 3.3	3.4
Rail
Class I, locomotive	28,094	18,835	20,028	19,745	20,506	20,774	22,015
Class I, freight cars1	1,168,114	658,902	560,154	499,860	477,751	467,063	473,773
Nonclass I freight cars1	102,161	103,527	132,448	125,470	130,590	124,580	120,169
Car companies and shippers freight cars1	440,552	449,832	688,194	688,806	691,329	687,337	693,978
Water	38,788	39,445	41,354	41,588	41,002	39,983	40,290
Nonself-propelled vessels2	31,662	31,209	33,152	33,042	32,381	31,335	31,296
Self-propelled vessels3	7,126	8,236	8,202	8,546	8,621	8,648	8,994
Oceangoing steam and motor ships4	864	636	454	443	426	412	412
US Flag fleet as percent of world fleet4	3.5	2.7	1.6	1.6	1.5	1.4	1.4

Key: R = revised.

¹Beginning with 2001 data, Canadian-owned U.S. railroads are excluded. This accounts for about 47,000 cars in 2000.
²Nonself-propelled vessels include dry-cargo barges, tank barges, and railroad-car floats.
³Self-propelled vessels include dry cargo, passenger, off-shore support, tankers, and towboats.
⁴1,000 gross tons and over.

Sources: Highway: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues).
Rail: Association of American Railroads, Railroad Facts 2005 (Washington, DC: 2005).
Water: Nonself-propelled vessels and self-propelled vessels: U.S. Army, Corps of Engineers, Waterborne Transportation Lines of the United States, Volume 1, National Summaries (New Orleans, LA : Annual issues). Oceangoing steam motor ships: U.S. Department of Transportation, Maritime Administration, Merchant Fleets of the World (Washington, DC: Annual issues).