Costain to design signalling infrastructure for London Underground’s Piccadilly Line, UK July 6, 2022 | Company News, Europe Company News, Europe News, News Costain has secured a contract from Transport for London (TfL) to design enhancements to the signalling infrastructure on London Underground’s Piccadilly Line. The scope of work includes collaborating... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password