"Table 1-11: Number of U.S. Aircraft, Vehicles, Vessels, and Other Conveyances",,,,,,,,,,,,,,,,,,,,,,,
,1960,1965,1970,1975,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
Air,,,,,,,,,,,,,,,,,,,,,,,
Air carriera,"2,135","2,125","2,679","2,495","3,808","4,678","6,083","6,054","7,320","7,297","7,370","7,411","7,478","7,616","8,111","8,228","8,055","8,497","8,194","8,176","8,186","8,225",U
General aviationb (active fleet),"76,549","95,442","131,743","168,475","211,045","210,654","198,000","196,874","185,650","177,120","172,935","188,089","191,129","192,414","204,710","219,464","217,533","(R) 211,535","(R) 211,345","(R) 209,778","219,426","224,352","221,943"
"Highway, total (registered vehicles)","74,431,800","91,739,623","111,242,295","137,912,779","161,490,159","177,133,282","193,057,376","192,313,834","194,427,346","198,041,338","201,801,921","205,427,212","210,441,249","211,580,033","215,496,003","220,461,056","225,821,241","235,331,382","234,624,135","236,760,033","243,010,549","247,421,120","250,851,833"
Passenger car ,"61,671,390","75,257,588","89,243,557","106,705,934","121,600,843","127,885,193","133,700,496","128,299,601","126,581,148","127,327,189","127,883,469","128,386,775","129,728,341","129,748,704","131,838,538","132,432,044","133,621,420","137,633,467","135,920,677","135,669,897","136,430,651","136,568,083","135,399,945"
Motorcycle,"574,032","1,381,956","2,824,098","4,964,070","5,693,940","5,444,404","4,259,462","4,177,365","4,065,118","3,977,856","3,756,555","3,897,191","3,871,599","3,826,373","3,879,450","4,152,433","4,346,068","4,903,056","5,004,156","5,370,035","5,767,934","6,227,146","6,686,147"
Other 2-axle 4-tire vehicle,N,j,"14,210,591","20,418,250","27,875,934","37,213,863","48,274,555","53,033,443","57,091,143","59,993,706","62,903,589","65,738,322","69,133,913","70,224,082","71,330,205","75,356,376","79,084,979","84,187,636","85,011,305","87,186,663","91,845,327","95,336,839","99,124,775"
"Truck, single-unit 2-axle 6-tire or more",N,"13,999,285","3,681,405","4,231,622","4,373,784","4,593,071","4,486,981","4,480,815","4,369,842","4,407,850","4,906,385","5,023,670","5,266,029","5,293,358","5,734,925","5,762,864","5,926,030","5,703,501","5,650,619","5,848,523","6,161,028","6,395,240","6,649,337"
"Truck, combinationc","11,914,249","786,510","905,082","1,130,747","1,416,869","1,403,266","1,708,895","1,691,331","1,675,363","1,680,305","1,681,500","1,695,751","1,746,586","1,789,968","1,997,345","2,028,562","2,096,619","2,154,174","2,276,661","1,908,365","2,010,335","2,086,759","2,169,670"
Bus,"272,129","314,284","377,562","462,156","528,789","593,485","626,987","631,279","644,732","654,432","670,423","685,503","694,781","697,548","715,540","728,777","746,125","749,548","760,717","776,550","795,274","807,053","821,959"
Transitd,,,,,,,,,,,,,,,,,,,,,,,
Motor bus,"49,600","49,600","49,700","50,811","59,411","64,258","58,714","60,377","63,080","64,850","68,123","67,107","71,678","72,770","72,142","74,228","75,013","76,075","76,190","77,328","81,033","82,027","(P) 83,080"
Light rail cars,"2,856","1,549","1,262","1,061","1,013",717,910,"1,092","1,055","1,001","1,051","1,048","1,114","1,078","1,076","1,180","1,327","1,371","1,448","1,482","1,622","1,645","(P) 1,801"
Heavy rail cars,"9,010","9,115","9,286","9,608","9,641","9,326","10,567","10,478","10,391","10,282","10,282","10,166","10,243","10,228","10,296","10,362","10,311","10,718","10,849","10,754","10,858","11,110","(P) 11,052"
Trolley bus,"3,826","1,453","1,050",703,823,676,610,551,665,635,643,695,675,655,646,657,652,600,616,672,597,615,(P) 609,,,,,
Commuter rail cars and locomotives,N,N,N,N,"4,500","4,035","4,982","5,126","5,164","4,982","5,126","5,164","5,240","5,426","5,536","5,550","5,498","5,572","5,724","5,959","6,228","6,392","(P) 6,403",,,,,
Demand response,N,N,N,N,N,"14,490","16,471","17,879","20,695","23,527","28,729","29,352","30,804","32,509","29,646","31,884","33,080","34,661","34,699","35,954","37,078","41,958","(P) 43,509",,,,,
Othere,N,N,N,N,N,867,"1,197","1,595","1,853","2,308","2,505","2,809","3,003","3,808","4,703","5,059","5,208","5,727","6,330","6,272","6,566","(R) 7,080","(P) 8,741",,,,,
Rail,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"Class I, Freight cars","1,658,292","1,478,005","1,423,921","1,359,459","1,168,114","867,070","658,902","633,489","605,189","587,033","590,930","583,486","570,865","568,493","575,604","579,140","560,154","499,860","477,751","467,063","473,773","474,839","475,415",,,,,
"Class I, Locomotive","29,031","27,780","27,077","27,846","28,094","22,548","18,835","18,344","18,004","18,161","18,505","18,812","19,269","19,684","20,261","20,256","20,028","19,745","20,506","20,774","22,015","22,779","23,732",,,,,
Nonclass I freight cars,"32,104","37,164","29,787","29,407","102,161","111,086","103,527","97,492","90,064","88,513","86,120","84,724","87,364","116,108","121,659","126,762","132,448","125,470","130,590","124,580","120,169","120,195","120,688",,,,,
Car companies and shippers freight cars,"275,090","285,493","330,473","334,739","440,552","443,530","449,832","458,679","477,883","497,586","515,362","550,717","582,344","585,818","618,404","662,934","688,194","688,806","691,329","687,337","693,978","717,211","750,404",,,,,
"Amtrak, Passenger train car",N,N,N,"1,913","2,128","1,854","1,863","1,786","1,796","1,853","1,852","1,722","1,730","1,728","1,962","1,992","1,894","2,084","2,896","1,623","1,211","1,186","1,191",,,,,
"Amtrak, Locomotive",N,N,N,355,419,291,318,316,336,360,338,313,299,332,345,329,378,401,372,442,276,258,319,,,,,
Water ,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Nonself-propelled vesselsf,"16,777","17,033","19,377","25,515","31,662","33,597","31,209",k,"30,899","30,785","30,730","31,360","32,811","33,011","33,509","33,387","33,152","33,042","32,381","31,335","31,296","32,052","32,211",,,,,
Self-propelled vesselsg,"6,543","6,083","6,455","6,144","7,126","7,522","8,236",k,"8,311","8,323","8,334","8,281","8,293","8,408","8,523","8,379","8,202","8,546","8,621","8,648","8,994","8,976","8,898",,,,,
"Oceangoing steam and motor ships (1,000 gross tons and over)h","2,914","2,391","1,579",870,849,748,635,621,600,586,544,512,509,495,473,470,461,454,443,416,412,357,286,,,,,
Recreational boatsi,"2,450,484","4,138,140","5,128,345","7,303,286","8,577,857","9,589,483","10,996,253","11,068,440","11,132,386","11,282,736","11,429,585","11,734,710","11,877,938","12,312,982","12,565,930","12,738,271","12,782,143","12,876,346","12,854,054","12,794,616","12,781,476","12,942,414","12,746,126",,,,,
KEY:  N = data do not exist; P = preliminary; R = revised.,,,,,,,,,,,,,,,,,,,
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"a Air carrier aircraft are those carrying passengers or cargo for hire under 14 CFR 121 and 14 CFR 135. Beginning in 1990, the number of aircraft is the monthly average of the number of aircraft reported in use for the last three months of the year. Prior to 1990, it was the number of aircraft reported in use during December of a given year.",,,,,,,,,,,,,,,,,,,
b 1991-94 data revised to reflect changes in adjustment for nonresponse bias with 1996 telephone survey factors; 1995-97 data may not be comparable to 1994 and earlier years due to changes in methodology. Includes air taxi aircraft.,,,,,,,,,,,,,,,,,,,
"c In 1960, this category includes all trucks and other 2-axle 4-tire vehicles.",,,,,,,,,,,,,,,,,,,
"d  Prior to 1984, excludes most rural and smaller systems funded via Sections 18 and 16(b)(2), Urban Mass Transportation Act of 1964, as amended. Also prior to 1984, includes total vehicles owned and leased.",,,,,,,,,,,,,,,,,,,
"e Other includes aerial tramway, automated guideway transit, cablecar, ferry boat, inclined plane, monorail, and vanpool.",,,,,,,,,,,,,,,,,,,
"f Nonself-propelled vessels include dry-cargo barges, tank barges, and railroad-car floats.",,,,,,,,,,,,,,,,,,,
"g  Self-propelled vessels include dry-cargo and/or passenger, offshore supply vessels, railroad-car ferries, tankers, and towboats.",,,,,,,,,,,,,,,,,,,
"h Beginning in 2006, vessels are reported if they are greater than 10,000 deadweight tons and prior to 2006 boats of greater than 1000 deadweight tons were reported.",,,,,,,,,,,,,,,,,,,
i Recreational vessels that are required to be numbered in accordance with Chapter 123 of Title 46 U.S.C.,,,,,,,,,,,,,,,,,,,
j  All trucks.,,,,,,,,,,,,,,,,,,,
"k  Data for Jan. 1, 1991-June 30, 1991 included in 1990 figure.",,,,,,,,,,,,,,,,,,,
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NOTES  ,,,,,,,,,,,,,,,,,,,
Transit motor bus figure is also included as part of bus in the highway category.,,,,,,,,,,,,,,,,,,,
"For more detail on oceangoing vessels, see table 1-23. ",,,,,,,,,,,,,,,,,,,
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SOURCES,,,,,,,,,,,,,,,,,,,
Air:,,,,,,,,,,,,,,,,,,,
Air carrier:,,,,,,,,,,,,,,,,,,,
"1960-65: U.S. Department of Transportation, Federal Aviation Administration, FAA Statistical Handbook of Aviation, 1970 (Washington, DC: 1970), table 5.3.",,,,,,,,,,,,,,,,,,,
"1970-75: Ibid., 1979 edition (Washington, DC: 1979), table 5.1.",,,,,,,,,,,,,,,,,,,
"1980-85: Ibid., Calendar Year 1986 (Washington, DC: 1986), table 5.1.",,,,,,,,,,,,,,,,,,,
"1990-94: Ibid., Calendar Year 1997 (Washington, DC: unpublished), table 5.1, personal communication, Mar. 19, 1999.",,,,,,,,,,,,,,,,,,,
"1995-2005: Aerospace Industries Association, Aerospace Facts and Figures 2005/6 (Washington, DC: 2006), p. 90 and similar tables in earlier editions.  ",,,,,,,,,,,,,,,,,,,
General aviation:,,,,,,,,,,,,,,,,,,,
"1960-65: U.S. Department of Transportation, Federal Aviation Administration, FAA Statistical Handbook of Aviation, 1969 (Washington, DC: 1969), table 9.10.",,,,,,,,,,,,,,,,,,,
"1970-75: Ibid., Calendar Year 1976 (Washington, DC: 1976), table 8-6.",,,,,,,,,,,,,,,,,,,
"1980: Ibid., General Aviation Activity Survey, Calendar Year 1980 (Washington, DC: 1981), table 1-3.",,,,,,,,,,,,,,,,,,,
"1985: Ibid., Calendar Year 1985 (Washington, DC: 1987), table 2-9.",,,,,,,,,,,,,,,,,,,
"1990-2006: Ibid., General Aviation and Air Taxi Activity Survey (Annual Issues), table 1.2, and similar tables in earlier editions.",,,,,,,,,,,,,,,,,,,
Highway:,,,,,,,,,,,,,,,,,,,
Passenger car:,,,,,,,,,,,,,,,,,,,
"1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table MV-201. ",,,,,,,,,,,,,,,,,,,
"1995-2006: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.",,,,,,,,,,,,,,,,,,,
Motorcycle:,,,,,,,,,,,,,,,,,,,
"1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table MV-201.",,,,,,,,,,,,,,,,,,,
"1995-2005: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.",,,,,,,,,,,,,,,,,,,
Other 2-axle 4-tire vehicles:,,,,,,,,,,,,,,,,,,,
"1970-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.",,,,,,,,,,,,,,,,,,,
"1995-2006: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.",,,,,,,,,,,,,,,,,,,
"Single-unit and combination trucks, and buses:",,,,,,,,,,,,,,,,,,,
"1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-201A.",,,,,,,,,,,,,,,,,,,
"1995-2006: Ibid., Highway Statistics (Washington, DC: Annual issues), table VM-1.",,,,,,,,,,,,,,,,,,,
Transit:,,,,,,,,,,,,,,,,,,,
"1960-97: American Public Transit Association, Transit Fact Book (Washington, DC: 1999), table 44.",,,,,,,,,,,,,,,,,,,
"1998-2006: Ibid., Public Transportation Fact Book (Washington, DC: 2008), table 15 and similar tables in earlier editions. ",,,,,,,,,,,,,,,,,,,
"Rail (all categories, except Amtrak):",,,,,,,,,,,,,,,,,,,
"1960-2006: Association of American Railroads, Railroad Facts 2007 (Washington, DC: 2007), pgs. 49 and 51.",,,,,,,,,,,,,,,,,,,
Amtrak:,,,,,,,,,,,,,,,,,,,
Passenger train-cars and locomotives:,,,,,,,,,,,,,,,,,,,
"1975-80: Amtrak, State and Local Affairs Department, personal communication.",,,,,,,,,,,,,,,,,,,
"1985-2000: Ibid., Amtrak Annual Report, Statistical Appendix (Washington, DC: Annual issues), p. 47.",,,,,,,,,,,,,,,,,,,
"2001-06: Association of American Railroads, Railroad Facts 2006 (Washington, DC: 2006), p. 77 and similar tables in earlier editions.",,,,,,,,,,,,,,,,,,,
Water transportation:,,,,,,,,,,,,,,,,,,,
Nonself-propelled vessels and self-propelled vessels:,,,,,,,,,,,,,,,,,,,
"1960-2006: U.S. Army, Corps of Engineers,  Volume 1, National Summaries (New Orleans, LA : Annual issues), table 1. ",,,,,,,,,,,,,,,,,,,
Oceangoing steam motor ships:,,,,,,,,,,,,,,,,,,,
"1960-2003: U.S. Department of Transportation, Maritime Administration, U.S. Flag Merchant Fleet, Calendar Years 2003 through 1946 (Washington, DC: 2004), available at http://www.marad.dot.gov/ as of Dec. 27, 2005.",,,,,,,,,,,,,,,,,,,
"2004: Ibid., Top 20 Merchant Fleet of the World (Washington, DC: 2004), available at http://www.marad.dot.gov/ as of Dec. 27, 2005.",,,,,,,,,,,,,,,,,,,
"2005-06: lbid., personal communication September 2008",,,,,,,,,,,,,,,,,,,
Recreational boats:,,,,,,,,,,,,,,,,,,,
"1960-2006: U.S. Department of Transportation, U.S. Coast Guard, Boating Statistics (Washington, DC: Annual issues), available at http://www.uscgboating.org/statistics/stats.htm as of Mar. 11, 2008.",,,,,,,,,,,,,,,,,,,
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