From 1 September 2025, passengers on the RER A, the busiest line in the Paris region, will benefit from new service improvements introduced by Île-de-France Mobilités (IDFM). The changes include an expansion of evening services with more long trains during the week, and the systematic stop of all trains at Neuilly-Plaisance station, adding 38 extra services per day for local travellers.
Following an earlier enhancement that introduced long trains on Friday, Saturday and holiday-eve evenings, IDFM has now decided to extend this provision. From September, all Thursday evening services will run with long trains until the end of operations.
The measure builds on existing arrangements in place during the summer months (from late July to the end of August) and over the Christmas and New Year period, when long trains already run throughout the evening.
To further improve passenger comfort, IDFM has also instructed operators to extend the use of long trains by one additional hour on Monday to Wednesday evenings. This means that instead of stopping at 22:00, long train services will now continue until 23:00, based on timings at Châtelet–Les Halles.
Neuilly-Plaisance to gain 38 additional daily services
With annual ridership rising from 5.9 million in 2019 to 6.2 million in 2023, Neuilly-Plaisance has become one of the more heavily used stations on the RER A. From September, the station will now be served by all RER A trains, compared with the current situation where only two out of three trains stop there during peak hours.
This change will provide around five additional trains per hour at peak times, representing a total of 38 extra trains per day. The improvement is expected to reduce platform crowding and cut dwell times at the station caused by heavy passenger volumes.
The measure has been made possible by the successful extension of the SACEM (driving, operation and maintenance assistance system) to Noisy-Champs, carried out by operator RATP. SACEM technology allows closer train spacing and higher service frequencies, particularly during peak hours.
Meeting growing demand on the RER A
The RER A, jointly operated by RATP and Transilien SNCF Voyageurs for IDFM, remains the busiest line in the Paris region, with consistently high evening ridership. The latest changes reflect ongoing efforts to adapt services to passenger demand and enhance comfort on a line that plays a central role in the region’s transport network.
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