The AEC Routemaster was developed in the early 1950s by AEC (Associated Equipment Company) in collaboration with the London Transport Executive. Designed by engineer R. W. H. (Roy) Hutton, the Routemaster was revolutionary, featuring a lightweight body, a powerful engine, and innovative elements such as an open rear platform for quick passenger access. Its design aimed to provide a combination of comfort, accessibility, and style, making it suitable for the bustling environment of London. Upon its introduction, it replaced older bus models, which were less efficient and less engaging for passengers.

The Routemaster's distinctive appearance, characterized by its red livery and gull-wing doors, quickly made it a recognizable symbol of London. Through its operational life, particularly in the 1960s and 1970s, it became beloved by both locals and tourists, solidifying its status as an essential part of London’s identity. The bus operated on various routes across the city, famously serving Londoners while also appearing in numerous films and television shows, further embedding it into popular culture.

Over the years, improvements were made to the Routemaster's design, including enhancements in safety and passenger comfort. Despite its classic appeal, the introduction of more modern buses led to the gradual phasing out of the Routemaster in the late 20th century. However, its design and functionality left a lasting legacy, resulting in special limited routes that continue to operate with the original Routemaster, celebrating the bus and its cultural significance.