London Buses route 312

London Buses route 312 is a Transport for London contracted bus route in London, England. Running between Purley and Norwood Junction station, it is operated by Arriva London.

312
Arriva London Alexander Dennis Enviro200 Dart at East Croydon station in June 2025
Overview
Operator	Arriva London
Garage	Croydon
Vehicle	Alexander Dennis Enviro200 Dart
Peak vehicle requirement	12
Predecessors	Route 12A
Night-time	No night service
Route
Start	Purley
Via	South Croydon East Croydon Addiscombe
End	Norwood Junction station
Length	9 miles (14 km)
Service
Level	Daily
Frequency	About every 12-20 minutes
Journey time	32-63 minutes
Operates	04:30 until 01:32

History

Arriva London MCW Metrobus in Dulwich in July 2000

Route 312 was the first bus route in London to be operated by electric buses only. This Optare MetroCity was seen at Norwood Junction station in 2014.

Route 312 became the first route in London to be operated exclusively by electric buses, when Arriva London commenced a further contract on 5 September 2015 with Optare MetroCity EVs.^{[1][2][3][4][5]}

On 2 March 2024, the route was extended from South Croydon to Purley via Brighton Road, partially replacing route 455 which was withdrawn on the same day.^[6]

Current route

Route 312 operates via these primary locations:^[7]

• Purley Old Lodge Lane
• Reedham station
• Purley Tesco
• Purley station
• Purley Oaks station
• South Croydon
• Croydon town centre
• East Croydon station
• Addiscombe tram stop
• Woodside tram stop
• Norwood Junction station