Freshfields Bruckhaus Deringer, Norton Rose and CMS Cameron McKenna have all taken roles on the deal that has seen Transport for London (TfL) take over maintenance responsibilities for three London Underground lines from the Tube Lines consortium.

The agreement will bring to an end the £30bn public-private partnership (PPP) to upgrade the Tube, with TfL now taking control of the upgrades on the Jubilee, Northern and Piccadilly Lines.