Since 2015, RER A users have been dreading the summer period… We must say that for four years now, the famous RER A – used by 325 million travelers every year – undergoes essential works every summer, disturbing the traffic for four weeks straight. The aim of these works? Renewing the rails and the ballast in Paris.

But careful though, this year, the work area moves between the Auber and Vincennes stations as well as between Auber and La Défense, towards Poissy and on well-defined periods and time slots.

Auber - Nanterre Université / Cergy / Poissy section: renovation works from August 15 to 20, 2020:

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• RER A is closed
  • Every evening from 9 p.m. and on weekends all day
  • Also closed during the day from 17 to 21 included, between Auber and La Défense, on the Poissy section

Auber - Vincennes section: renovation works from July 11 to August 14, 2020:

• RER A is closed
  • From July 11 to August 7 included, every night from 9 p.m., and on weekends all day
  • From August 8 to 14 included, all day long

For the record, previous renovation works enabled to renew 15 kilometers of rails and replace points. When renovation work ends in 2021, 24 kilometers of rails and 28 points will have been changed.