Transportation in the United States is facilitated by road, air, rail, and water networks(Boats). The vast majority of passenger travel occurs by automobile for shorter distances, and airplane or railroad for some people, for longer distances. In descending order, most cargoes travel by railroad, truck, pipeline, or boat; air shipping is typically used only for perishables and premium express shipments.
The Metropolitan Transit Authority of Harris County (often referred to as METRO, or MTA) is a major public transportation agency based in Houston (Texas, USA). It operates bus, light rail, future commuter rail, and paratransit service (under the name METROLift) in the city as well as most of Harris County. METRO also operates bus service to two cities in Fort Bend County. The METRO headquarters are in the Lee P. Brown Administration Building in Downtown Houston.
The Texas Department of Transportation (TxDOT) is a governmental agency and its purpose is to "provide safe, effective, and efficient movement of people and goods" throughout the state. Though the public face of the agency is generally associated with maintenance of the state's immense highway system, the agency is also responsible for aviation in the state and overseeing public transportation systems.
King County Metro, or Metro for short, is the public transit authority of King County, Washington, a division of the King County Department of Transportation. It began operations on January 1, 1973, but can trace its roots to Seattle Transit, founded in 1939, and Overlake Transit Service, founded in 1927. As of 2008, it operated 1,443 buses on 223 routes. Its annual ridership in 2008 was 118 million. By second quarter 2012 ridership figures, Metro is the 8th largest agency in the nation. Metro employs 2,694 full- and part-time operators (year-end 2008)