There are two proposed routes for Crossrail 2, known as the Metro and the Regional route.
The Transport for London Commissioner claims Crossrail 2 is needed because London's population is growing by "a tube train a week".
Peter Hendy joined Mayor Boris Johnson at the launch of a public consultation where the price tag for the project remained a mystery. Simon Harris reports.
The launch of a consultation process on Crossrail 2 has been welcomed by the London Assembly's Transport Committee. But they warned they will be scrutinising the plans carefully.
Peter Hendy, the Transport for London Commissioner, has said Crossrail 2 is needed because London's population is growing by "a tube train a week".
A public consultation is being launched over the proposed route for London's new rail link, Crossrail 2.
There's two routes to choose from - the Metro scheme and Regional scheme - which could half journey times for some commuters.
The Metro scheme would go from Wimbledon to Alexandra Palace, mostly underground, stopping at Clapham Junction, Victoria and Euston.
The Regional scheme would take in the same central Wimbledon to Alexandra Palace route, but would stretch south west of Wimbledon into Surbiton and Kingston.
The consultation will be opened by Boris Johnson at Wimbledon Station this morning and will run until August 2.