A double-decker bus or double-deck bus is a bus that has two storeys or decks. Double-deckers are primarily for commuter transport, but open-top models are used as sight-seeing buses for tourists, and there are coaches too for long-distance travel. They appear in many places around the world but are presently most commonly used as mass transport in cities of Britain and Ireland, in Hong Kong, and in Singapore.
A New Routemaster bus operating in London
A typical double-decker bus used for urban mass transport
Double-decker coach bus, used for long-distance travel
Open-top double-decker, used for tourist sightseeing
A bus conductor is a person responsible for collecting fares from bus passengers. Bus conductors may also be responsible for helping passengers to board, keeping the bus route on schedule, attracting potential passengers to the vehicle, and announcing bus stops.
In the post-World War II decades, some countries introduced seated conductors. On this double-decker bus—which operated in Vienna, Austria from the early 1960s—passengers boarded at the rear, passed the conductor and exited through the middle or front doors.