Leyland National Greenway as used on route 507 between 1992 and 2002
Mercedes-Benz Citaro G at
Waterloo station in 2009 Red Arrow route 507 commenced operating on 7 September 1968 as part of the
Red Arrow network of flat fare bus routes aimed at commuters in Central London linking some of the capital's main railway termini. On 2 June 2002, along with
route 521, the route was the first
bus route in London to be converted to
articulated bus operations with
Mercedes-Benz O530G Citaros. During late 2003 and early 2004, a series of onboard fires on Mercedes-Benz O530Gs led to withdrawal of the entire fleet, while Mercedes-Benz made some modifications. During this period limited services operated using a variety of different buses on route 507, including double-deckers. On 25 July 2009, as part of the move to
replace London's articulated buses, the O530Gs were replaced by
Mercedes-Benz O530 Citaros. Another criticism of articulated buses was the low number of seats, with only 49 per vehicle. A standard rigid Citaro has 44 seats, however the new ones for route 507 have just 21, with room supposedly for up to 76 standees, leading to criticism the new buses were "cattle trucks" and even more crowded than the buses they replaced. In December 2013, two trial
BYD electric buses were introduced. In September 2016,
Alexander Dennis Enviro200EV bodied BYD electric buses began to operate the route, making it and route 521 the first battery electric bus routes in London. In September 2016, the buses on this route and the 521 received new digital route displays. In 2021, the peak time frequency was reduced from 18 buses per hour to 7.5.
Route withdrawal On 23 November 2022, it was announced that route 507 would be withdrawn following a consultation, with route
11 being rerouted to Waterloo to compensate for its loss. These changes were implemented on 29 April 2023. ==Former route==