Alstom Citadis Dualis tram-trains, U 53800 series, are used on the line.

The line is 19 kilometres (12 miles) long, with service taking 32 minutes.

It connects the communes of Saint-Germain-en-Laye (north) and Saint-Cyr-l'École (south), in the western outer suburbs of Paris.

An extension to Achères-Ville RER station is planned to open by 2028.

[5] The line will branch off at Lisière Pereire with a route via Poissy RER station.