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and speed of loading and unloading passengers is very important. The entrance
step to the bus is about 300 mm above the road and it provides an easy step
up. Another step up leads to the deck of the bus. The doors are usually power-
operated by the driver to prevent passengers getting on or off while the bus is
moving. A double-decker bus is carrying about sixty passengers. In modern
designs the entrance is at the front for the driver to have a direct view of board-
ing passengers.
A coach is a type of a bus for conveying between thirty and forty passen-
gers on excursions or for fairly long distances between towns and even coun-
tries. Unlike buses designed for shorter journeys, coaches have a luggage hold
separate from the passenger cabin and are normally equipped with facilities re-
quired for longer trips: comfortable seats, air-conditioning, overhead luggage
compartments, small tables for small snacks, video screens to show movies,
and sometimes even a toilet.
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