TfL appoints Mace-CPC JV to review sub-surface lines signalling plans November 4, 2015 | Europe Company News Transport for London (TfL) has appointed a joint venture (JV) of UK-based Mace and CPC Project Services LLP to review its plans for installation of a modern signalling system on the London Underground... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password