RER D works: dates, times and alternatives for August 2026 Last updated: August 4, 2026
In August 2026, the RER D line is affected by major modernization works: replacement of signal boxes and tracks to improve network reliability. Here are the details to help you plan your journeys ahead.
Key dates
Service disruptions are scheduled on the RER line 
to improve the line's reliability and punctuality. Replacement transport services will be provided during these periods.
🚫 Disruption Gare du Nord <> Paris Gare de Lyon
From Saturday 25 July to Sunday 16 August, all day long
Please note: Stade de France St-Denis station is not served to and from Paris
Recommended route from Gare du Nord:
- For Châtelet-les-Halles: RER E to Saint-Lazare, then Metro 14 to Châtelet-les-Halles
- For Paris Gare de Lyon: RER E to Saint-Lazare, then Metro 14 to Paris Gare de Lyon
Recommended route from Paris Gare de Lyon:
- For Châtelet-les-Halles: Metro 14
- For Gare du Nord: Metro 14 to Saint-Lazare, then RER E to Magenta (Gare du Nord)
Reference map
🚫 Disruption Paris Gare de Lyon <> Melun
On Saturday 22 August, all day long
Alternative route: replacement bus service serving intermediate stations
🚫 Disruption Goussainville <> Creil
From Saturday 22 to Sunday 23 August
Alternative route: replacement bus service serving intermediate stations
🚫 Disruption Corbeil-Essonnes <> Malesherbes
On Saturdays and Sundays 15/16 and 22/23 August
Alternative route: replacement bus service serving intermediate stations
Adapt your journeys with the Bonjour RATP app
🔎 Find the best route
Start a route search: the results anticipate disruptions to help you avoid work zones. Then personalize them according to your needs: schedules, transport modes, lines or stations to avoid…
🚦 Check live traffic information
Access real-time traffic status via the app's Traffic tab. You can enable personalized alerts to be notified when your lines are affected.
📹 Demo: follow traffic updates with the app
The Bonjour RATP app, your ally for anticipating disruptions and
finding the best routes during engineering works
