Tram Express Ouest
The line is planned to be 19 kilometres (12 miles) long, from Saint-Germain-en-Laye to Saint-Cyr-l'École, in the western suburbs of Paris. It will have interchanges with existing SNCF Transilien lines L, N and U, and Réseau Express Régional (RER) lines A and C.
Alstom Citadis Dualis tram-trains will be used on the line.
Opening is scheduled for November 2018.
(French) Official website