Passenger service has commenced on Paris RER Line E Extension, France May 9, 2024 | Europe News, News Passenger service has commenced on the RER Line E Extension. The extension spans 8 km from Haussmann-Saint Lazare to Nanterre-La Folie and covers three stations. These are Porte Maillot, La Défense-Gr... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password