Double-decker bus
With the exception of coaches, double-decker buses are uncommon in the United States. Many private operators, such as Megabus, run by Coach USA, employs double-decker buses on its busier intercity routes.
Public transportation in the United States
There are three common types of bus service in the United States: conventional bus systems, bus rapid transit (BRT), and intercity buses. Nearly every major city in the United States offers some form of bus service, with some being 24 hours a day. These buses run on flexible routes and make frequent stops, with a focus of provided accessible service to all tracts of a community. Bus rapid transit attempts to mimic the speed of a light rail system. Most BRT systems in the United States are in moderate sized cities or satellite cities, and serve as auxiliary routes for rail service. The primary different between BRT in the United States and regular bus service is BRT often runs more frequent as has fewer stops, in order to make service quicker. Furthermore, BRT service generally has their own dedicated right of way and signal prioritization, which allows BRT vehicles to move faster than regular automobile traffic. Both BRT and conventional buses are usually publicly financed. Well-known examples of cities with popular BRT services in the United States include Cleveland, Miami, and Richmond. Most inter-city bus service is private for-profit ventures, although they normally used publicly subsidized motorways and highways. Examples of intercity bus service in the United States is "Megabus" and "Greyhound", which are the two largest inter-city bus services in the United States.