Two scenarios proposed for CDG Express work

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FRANCE: After five months working closely with SNCF Réseau, Île-de-France Mobilités and the communities, the Prefect of Paris Michel Cadot has proposed to the government two scenarios to carry out Paris-North Railway Line works. 

15 major projects are earmarked to be completed by 20124 on the North axis, including the regeneration of tracks of the RER B, new automated operating and signalling system Nexteo, CDG Express connecting Roissy Airport and Paris city centre, Grand Paris Express interconnections with the RER network, Gare du Nord 2024 and many more.

After number of consultations, the Prefect has proposed two technically feasible scenarios to carry out the work on CDG Express.

Scenario 1 -  CDG Express delivered in May 2024

  • Respect of the calendars for the 15 other projects except the partial realization of the regeneration priority 2
  • Closed 3 weeks in the summer of 2023
  • Necessary reduction for 19 months of CDG Express's level of service to compensate for the postponement of functionalities (Aulnay turnaround and Le Bourget garages)
  • Low additional cost
  • High tension in the railway system and operational risk

Scenario 2 - CDG Express delivered in December 2025

  • Respect of calendars for the other 15 projects
  • More weekends worked on 2021/2023
  • Neutrality guaranteed at commissioning
  • High additional cost requiring a decision in the finance law
  • Lower tension on the rail system

These scenarios were presented to the coordinating committee on April 15, 2019, during which each of the partners expressed its preference:

  • ADP, DIJOP and CDG Express project company for Scenario 1;
  • Île-de-France Region, Hauts-de-France Region, Île-de-France Mobilités, City of Paris, Departmental Council of Seine-Saint-Denis, County Council of Val d'Oise and EPT Plaine Commune in favor Scenario 2