Summer works on the Paris regional network are now complete. With track upgraded, platforms elevated,
and all-new infrastructure projects, we’re set to serve you better than ever.

A better commute

Over the summer, SNCF and RFF (Réseau Ferré de France, owner of the French rail network) launched engineering works at a dozen major sites to keep you safe—and to make train service and infrastructure more reliable.

By 2 September, operations were back to normal, with no changes in timetables.

Key projects included:

  • replacing track on the Cergy branch of RER line A
  • replacing track on line L between Poissy and Maisons Laffitte
  • replacing track and points for trains approaching Paris Nord station on RER lines B and D, and lines H and K
  • elevating platforms in three stations on RER line B (La Courneuve Aubervilliers, Le Bourget, and La Plaine Stade de France
  • reinforcing tunnels on RER line C along the Seine River within Paris city limits (Castor project)
  • replacing track on the southern portion of RER line D
  • upgrading the Corbeil-Essonnes rail junction and groundwork for the new Créteil-Pompadour station
  • replacing track on underground portions of RER line E within Paris city limits, requiring closure of the tunnel between the Magenta and Haussmann Saint Lazare stations
  • performing track maintenance on segments of line H
  • upgrading point controls on tracks approaching Saint-Lazare station in Paris

Close-up: Paris Nord station

Every day, rails and points in the final kilometre approaching Paris Nord station handle 1,500 trains carrying nearly 1 million travellers. And by last summer, the equipment was 30 years old and needed an upgrade.

Traffic on this scale on a segment with a multitude of points and up to 12 adjoining tracks required major resources and careful planning. The work was divided into seven carefully defined stages to ensure no interruption in service.

Once this challenging project got under way, over 500 SNCF Infra employees worked 24/7, including weekends. In all, they replaced 16,000 sleepers, laid 15,000 meters of rail, replaced five points and spread 24,000 tonnes of ballast, at a cost of around €20 million.

Preparations were made at night, but actual work was done during the day, most of it in the height of summer, when many commuters were on holiday.

Key points

Dates: 1 July – 1 September 2012
Sector: Approach to Paris-Nord station
Budget: €20 million contributed by RFF, work coordinated by SNCF Infra

8,000 hardworking employees

More than 8,000 employees at SNCF Infra, our maintenance and works division, steered these projects from design to successful completion. Working days, nights and weekends, they:

  • replaced 16,000 sleepers
  • laid 15 km of rail
  • replaced 5 points
  • spread 24,000 tonnes of ballast.

A closer look: Transilien Summer Works