Paris metro Line 4 to be fully automated July 12, 2013 | Europe News The board of public transport authority of Ile-de-France, Syndicat des Transports d'Île-de-France (STIF) has approved the full automation of Paris metro Line 4. Work on Line 4 is expected to begin in ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password