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
Since 1970, various operators of Copenhagen city transport were using double-deckers—originally Leyland, in the 1980s-90s MAN and in the 2000s Volvo, derivates of model B7.