The AEC Routemaster is a model of double-decker bus that was first built by Associated Equipment Company (AEC) in 1954 and was produced until 1968. Primarily front-engined, rear open platform buses, a small number of variants were produced with doors and/or front entrances. Introduced by London Transport in 1956, the Routemaster saw continuous service in London until 2005, and currently remains on one heritage route in central London. In all, 2,876 Routemasters were built with all but a few delivered to London Transport. Approximately 1,000 are still in existence.

A pioneering design, the Routemaster outlasted several of its replacement types in London. The unique features of the standard Routemaster were both praised and criticised. The open platform, while exposed to the elements, allowed boarding and alighting away from stops; and the presence of a conductor allowed minimal boarding time and optimal security, although the presence of conductors produced greater labour costs. The traditional red Routemaster has become one of the famous features of London, with much tourist paraphernalia continuing to bear Routemaster imagery, and with examples still in existence around the world. (Full article...)