Mayor of London Sadiq Khan reaffirmed his commitment to Crossrail 2 as he set out his strategy for the future of transport in the capital.

Early plans for the line, drawn up in 2015, include stations extending as far as Chessington South, Epsom, Hampton Court and Shepperton, connecting the area to central London.

The project would involve connecting the existing rail lines with new tunnels from Wimbledon to Tottenham Hale and New Southgate.

It is expected there would be up to 30 trains an hour.

Mr Khan said: “I’ve been clear that we need to be bold in how our city operates as London’s population grows, and this means not only investing record amounts in new infrastructure like extensions to the tube, rail and Crossrail 2, but working with boroughs and local communities to reduce our reliance on car use across London.”

He made the commitment while presenting his transport strategy to the London Assembly, ahead of its final publication in the coming weeks. His target is for 80 per cent of trips in London to be made on foot, by cycle or using public transport by 2041.

He said: “With our unprecedented focus on walking, cycling and clean public transport, our ambitious transport strategy can act as a crucial driver for new homes and jobs, but also improve quality of life for everyone living in London.”

Crossrail 2 alone is expected to support 200,000 new jobs, and “unlock” 200,000 new homes – more than 30 per cent of them outside London.

Transport Secretary and Epsom and Ewell MP Chris Grayling said an independent affordability has been established by the government and TfL to ensure the project would provide value for money.

Chair of the review Mike Gerrard said: “Crossrail 2 has the potential to relieve congestion and unlock housing, jobs and development to support future growth in London, but it is imperative that it can be delivered in an affordable way that is fair to both the London public and the wider UK taxpayer.

“Major projects work best when independent reviews, drawing on a wealth of experience, help move them from plans to spades in the ground. I am delighted to chair this crucial review and I look forward to working with the Department for Transport and Transport for London to ensure that Crossrail 2 is the best project it can be.”

The review is expected to finish in summer.