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.
Double-decker bus
Double-decker buses are in common use throughout the United Kingdom, and have been favoured over articulated buses by many operators because of the shorter length of double-deckers and larger amount of seating capacity; they also may be safer to operate through the narrow streets and tight corners common in Britain. The majority of double-decker buses in the UK are between and long, the latter being more common since the mid-1990s, though there are three-axle models in service with some operators. Double-decker coaches in the UK have traditionally been in length, though many newer models are about .