RER A: traffic disrupted between Nanterre-Université and La Défense due to accident

Although traffic is expected to resume at 2:30pm, the RER A has been partially interrupted between Nanterre-Université and La Défense stations since 12:30pm this Tuesday, January 28, 2025. The cause? A serious personal accident, says RATP on the X account dedicated to RER A traffic.

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Traffic also remains very disrupted on the whole line: in fact, several alternatives are available to get around these interruptions on the RER A. For the Saint-Germain (78) branch, you can catch the RER E from Nanterre la Folie station (a 20-minute walk from Nanterre Université station). For branches to Cergy or Poissy, you canuse line J as a substitute.

The resumption of traffic should not be long in coming: in the meantime, you can always find the possible alternatives here if the resumption is still delayed. We wish you all the best for your day on the Paris transport network!