As with every major sporting or cultural event, Île-de-France Mobilités is strengthening its transport offer for the reception of spectators in Saint-Quentin-en-Yvelines.
The Paris – Saint-Quentin-en-Yvelines axis (lines C, N and U) is the first axis identified by the organizers to allow spectators to reach the Ryder Cup site. Thus, and after an analysis of the expected flows, Île-de-France Mobilités has decided to set up a reinforcement of the transport offer on lines C, N and U as follows:
- on Friday, creation of 4 trains on line C and 4 trains on line N,
- on Saturday, creation of 6 trains on line C and 5 trains on line N, as well as the introduction of 6 trains on line C and 9 trains on line U,
- on Sundays, creation of 6 trains on line C and 5 trains on line N, as well as the introduction of "long trains" of 3 trains on line C and 6 trains on line U.

