It was planned to run on a north–south route from Camden Town in the north, via King's Cross, to Peckham and Brixton in the south.

The Cross River Tram scheme was proposed to relieve overcrowding on the London Underground and was due to begin operation by 2016.

In May 2008, Livingstone's successor as mayor, Boris Johnson, announced that he intended to review the project in light of the lack of central government funding for the planned route.

[6] Khan subsequently stated that he had no plans to revive the cancelled tram scheme, and expressed the view that improved Tube services and the extension of the London Overground through south London suburbs, along with the proposed re-opening of Camberwell railway station, would meet the transport needs along the corridor that would have been served by the Cross River Tram.

[7] In late 2006 and early 2007 TfL consulted residents on their views of the following route options: Camden Town – Mornington Crescent – Euston station – Tavistock Square – Russell Square – Holborn – Aldwych – South Bank – Waterloo Waterloo – (either Lambeth North/Imperial War Museum/Kennington Cross or Elephant & Castle) – Oval – (either Stockwell or Brixton Road) – Brixton (either Pope's Road or Brixton St Matthew's Church) Waterloo – St George's Circus – Elephant & Castle – Heygate Street – Thurlow Street – (either Burgess Park/Chandler Way or Wells Way/Southampton Way) – Peckham Euston – (either Crowndale Road or Somers Town) – King's Cross On 11 September 2007, TfL published the results of their 2007 consultation:[8]