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.
Articulated buses in the United Kingdom
Articulated buses were rarely used in the United Kingdom compared to other countries, until the turn of the millennium. This was historically due to the UK preference for the double-decker bus for use on high capacity routes. As of June 2006, there were over 500 articulated buses in the UK, although they are still heavily outnumbered by double deckers. The majority of this fleet was used in London, although in August 2008 it was announced these buses would be withdrawn by end of 2011.