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.
Unitrans
Unitrans is the transit system which operates in and around the campus of the University of California, Davis. It takes its name from an abbreviation of the words "University Transport". Excepting several managerial and maintenance positions, Unitrans is managed and operated entirely by students of the University of California, Davis who usually work part-time while attending school. The system is well known throughout the area for its use of several distinctive ex-Transport for London double-decker buses, as well as its fleet of modern natural gas single-decks. Ridership exceeds 3 million passenger-trips per year on 18 weekday, 2 school-only and 6 weekend routes. Current fares are $1.25 for the general public and included in student fees for undergraduate University attendees. Unitrans is one of a small number of transit systems in the United States to operate double deck buses in regular (non-sightseeing) service (the others include The Deuce in Las Vegas, Nevada, Antelope Valley Transit Authority in Lancaster/Palmdale, California, SLO Transit in San Luis Obispo and Community Transit in Snohomish County, Washington). Unitrans has one of the best safety records of any public transit system in the US.