They are also commonly (but not always) painted with bright colours to stand out among other airport vehicles and to be easily seen by the crews of taxiing aircraft when negotiating the aprons.
Airside transfer buses can be of normal municipal transit bus design, or due to not running on the public highway, can be extra long and wide,[2] to hold the maximum number of passengers.
There are two leading manufacturers of purpose built airport buses: Mallaghan Engineering LTD from Northern Ireland and Cobus industries GmbH.
Third-party companies offering services to airline passengers may also operate buses as part of their business, with pick-up and drop off points near the airport terminal, and extra luggage space.
Some public bus operators have moved into the demand responsive transport sector, bridging the gap between premium fixed route bus services and private hire airport taxicabs, incorporating an area in which the service can vary its route to pick up pre-booked passengers.
Examples include Dot2Dot from National Express, and the Edinburgh Shuttle operated by Lothian Buses, which feature high specification minibus based vehicles with luggage space.
A specialist express bus operation is that of the likes of easyBus, that runs minibus services from stops in London direct to Luton Airport.
A specialist example being the Fastway, which is a bus rapid transit scheme which at the heart of its route network links the north and south terminals of Gatwick Airport.