Paris Metro Line 1 and light rail extensions advance with EUR2.53 billion in planned investment August 12, 2026 | Europe News, News Île-de-France Mobilités (IdFM) has announced that public consultation on revised route options for the proposed 5 km eastern extension of driverless Paris Metro Line 1 will begin in autumn 2026. The €... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password