Getting a live report on the state of the network traffic for the whole of the Transilien Network is now possible. 

Has an incident delayed the arrival of your RER train? Now there’s no more stressful waiting around…
Transilien passengers can now know in real time the cause of delays by sending "TRAFIC" to 4 10 20. Traffic is normal, traffic is disrupted, cause of delay: a full explanation is given in a few lines.

This service is available every day, from 6 AM to 10 PM, from any type of mobile phone and without having to sign up!
What’s more, this precious information will only cost you €0.05 on top of the normal price of a text.

If you have missed your train, no need to panic! The text service can also tell you the times of later trains departing from your Transilien station.

To learn more about the Transilien SMS service