A Green Party member of the London Assembly has asked new mayor of London Sadiq Khan to review the business case for a tram service via Waterloo Bridge and Elephant & Castle.
The Cross River Tram was intended to link Camden Town and Euston in the north with Brixton and Peckham in the south, via Waterloo Bridge and Elephant & Castle.
Transport for London drew up plans for the light rail link under the mayoralty of Ken Livingstone, but the project was dropped by Boris Johnson soon after he took office in 2008.
Now the new Labour mayor Sadiq Khan has been pressed to review the case for reviving the tram proposal.
Green Party London Assembly member Caroline Russell has tabled this question to the mayor:
"Camberwell is very poorly served by rail and public transport access levels will remain low in parts of Southwark until 2031.
"The Cross River Tram would provide a public transport crossing in a part of central London where no new crossings are planned.
"Will you therefore review the business case for this project?"
Mr Khan's answer is due to be published by City Hall next week.
After the CRT was abandoned by TfL, an alternative proposal for a privately-funded tram between London Bridge and Denmark Hill – known as the Southwark Supertram – was drawn up.
As recently as December 2015 Trampower – the company behind the Supertram proposal – was claiming that it would soon be applying for planning permission to build the line.