On Thursday, London's <name>Mayor Boris Johnson</name> announced the shortlist of bidders to supply up to ten further trams to Transport for London (TfL) for use on the city's Tramlink network in Croydon. The trams will be used to supply additional capacity on the network between Elmers End, central Croydon and Therapia Lane — one of the most congested parts of the route.

Shortly after the announcement, whilst inspecting one of the network's current trams at East Croydon tram stop, <name>Boris Johnson</name> said: "I have no greater responsibility as Mayor than to ensure people can move around this city with ease, comfort and reliability.

"Trams in Croydon have proved a major success and this is reflected in journey numbers which have soared by 45 per cent since the network opened in 2000.

"I look forward to the extra vehicles developing this vital, much-appreciated, and indeed attractive, form of transport further."

Funding for the new trams is expected to largely come from TfL, however the London Borough of Croydon has also confirmed a £3m contribution to the project. This will also include the refurbishment of tram stop surrounds.

Croydon Council Leader <name>Mike Fisher</name> said: "This is looking like a great deal for Croydon and shows the benefits of an ambitious local authority and committed Mayor working together, pooling resources and expertise.

"There is real support to get additional trams for Croydon to keep pace with growing demand for Tramlink services and also to secure major improvements for pedestrians and transport users around and between East and West Croydon stations."

TfL anticipates that, providing a successful bid is made, the new trams would be delivered to the network's depot at Therapia Lane in late 2011, with an entry into service from early 2012.