Table 1 The Transportation Network: 2004

Table 1 The Transportation Network: 2004

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Mode Components
Highway  
Public roads 46,837 miles of Interstate highway
115,319 miles of other National Highway System roads
3,835,305 miles of other roads
Air  
Public-use airports 5,288 airports
Airports serving large certificated carriers 27 large hub areasa (70 airports), 467 million enplaned passengers
35 medium hub areas (58 airports), 127 million enplaned passengers
68 small hub areas (83 airports), 53 million enplaned passengers
970 nonhub areas (1,009 airports), 22 million enplaned passengers
Rail  
Miles of railroad operated 97,496 miles by Class I freight railroads in the United Statesb
15,641 miles by regional freight railroads
27,109 miles by local freight railroads
23,000 miles by Amtrak (passenger)c
Urban transit (2003)  
Directional route-milesd Bus: 165,854e
Trolley bus: 425
Commuter rail: 4,407
Heavy rail: 1,597
Light rail: 1,097
Stations Commuter rail: 1,153
Heavy rail: 1,023
Light rail: 723
Water  
Navigable channels 26,000 miles (2003)
Ferry routesf 487 (2000)
Commercial waterway facilitiesa  
Great Lakes 600 deep-draft
154 shallow-draft
Inland 2,361 shallow-draft
Ocean 4,287 deep-draft
1,770 shallow-draft
Locks Locks: 257
Pipeline  
Oil Crude lines: 65,942 miles of pipe
Product lines: 76,258 miles of pipe
Gas (2003) Transmission: 304,000 miles of pipe
Distribution: 1,097,900 miles of pipe

a See Glossary for definitions. b There are also 560 miles of railroad operated within the U.S. Class I freight railroad system that are owned by Canada. c The Amtrak mileage includes the 745 miles of trackage it owns and route-miles operated on the tracks of the freight railroads. d Directly operated service. Does not include contracted service. e Includes directional route-miles on exclusive right-of-way, controlled right-of-way, and mixed traffic.

Sources: Various sources, as cited in USDOT, RITA, BTS, National Transportation Statistics, available at http://www.bts.gov; Association of American Railroads, Railroad Facts, 2005 (Washington, DC: 2005); USDOT, FHWA, Highway Statistics 2004 (Washington, DC: 2005), table HM-18; Oil & Gas Journal, Sept. 12, 2005; USDOT, Federal Transit Administration, 2003 National Transit Summaries and Trends, tables 21, 23, 24, and appendix, available at www.ntdprogram.com; USDOT, RITA, BTS, "Airport Activity Statistics of Certificated Air Carriers, Summary Tables, 12 Months Ending Dec. 31, 2004," 2005; U.S. Army Corps of Engineers, Institute for Water Resources, Navigation Data Center, The U.S. Waterway System Facts, December 2004 (Alexandria, VA: 2004).