Transportation in the United States: Meaning (information, definition, explanation, facts)

Railways: total: 240,000 km mainline routes (nongovernment owned) standard gauge: 240,000 km 1.435-m gauge (1989)

See List of United States railroads.

Cities with metro systems:

• Atlanta, Georgia (USA) (Metropolitan Atlanta Rapid Transit Authority)
• Baltimore, Maryland
• Boston, Massachusetts ("MBTA subway" or Massachusetts Bay Transportation Authority or just "the T")
• Chicago, Illinois (The CTA Subway or the L-train)
• Dallas, Texas (Dallas Area Rapid Transit)
• Los Angeles, California (Los Angeles County Metropolitan Transportation Authority)
• Miami, Florida (Miami-Dade Transit)
• New York City (Metropolitan Transit Authority of New York City)
• Philadelphia, Pennsylvania (Southeastern Pennsylvania Transportation Authority)
• San Francisco Bay Area ("BART" or Bay Area Rapid Transit and Muni)
• Washington DC (The Metro, operated by the Washington Metropolitan Area Transit Authority, and the Congressional Subway)

Greyhound Lines, Inc. is a large US bus company. [1], map (pdf).

Highways: total: 6,348,227 km paved: 3,732,757 km (including 88,727 km of expressways) unpaved: 2,615,470 km (1997 est.)

Waterways: 41,009 km of navigable inland channels, exclusive of the Great Lakes

Pipelines: petroleum products 276,000 km; natural gas 331,000 km (1991)

Ports and harbors: Anchorage, Alaska, Baltimore, Maryland, Boston, Massachusetts, Charleston, South Carolina, Chicago, Illinois, Duluth, Minnesota, Hampton Roads, Honolulu, Hawaii, Houston, Texas, Jacksonville, Florida, Los Angeles, California, New Orleans, Louisiana, New York, New York, Philadelphia, Pennsylvania, Port Canaveral, Florida, Portland, Oregon, Prudhoe Bay, Alaska, Oakland, California, Savannah, Georgia, Seattle, Washington, Tampa, Florida, Toledo, Ohio

Merchant marine: total: 386 ships (1,000 GRT or over) totaling 11,634,608 GRT/15,574,117 DWT ships by type: barge carrier 10, bulk 67, cargo 28, chemical tanker 14, combination bulk 2, container 84, liquified gas 10, multi-functional large load carrier 3, passenger 7, passenger/cargo 1, petroleum tanker 104, roll-on/roll-off 43, short-sea passenger 3, specialized tanker 1, vehicle carrier 9 (1999 est.)

Airports: 14,572 (1999 est.)

Airports - with paved runways: total: 5,174 over 3,047 m: 180 2,438 to 3,047 m: 221 1,524 to 2,437 m: 1,310 914 to 1,523 m: 2,448 under 914 m: 1,015 (1999 est.)

Airports - with unpaved runways: total: 9,398 over 3,047 m: 2 2,438 to 3,047 m: 6 1,524 to 2,437 m: 155 914 to 1,523 m: 1,661 under 914 m: 7,574 (1999 est.)

Heliports: 118 (1999 est.)

See also : United States of America, United States Department of Transportation, Urban Mass Transportation Act, National Mass Transportation Assistance Act, Boston Transportation.