A preferred route for a proposed Crossrail 2, running north-south through London, has been unveiled by mayor Boris Johnson.

The route will stop at New Southgate station, in Station Road, on the borders of Enfield.

If approved by the government, the new line, running from Cheshunt to Epsom, could be carrying up to 90,000 people into central London every morning by 2030. Construction would begin in 2017.

The Department for Transport will now invite views on plans to safeguard the proposed route by ring-fencing land that may be needed in the future to construct the line.