On this site, cleaning, maintenance, and repair of the rolling stock for Line R and RER D will be carried out; activities that will continue throughout the modernization works, with new maintenance facilities eventually meeting the technical specifications of next-generation trains.

Key figures:

• 16,500 m² of construction area,
• 64,000 tons of concrete from deconstruction reused,
• 43,000 tons of ballast reused,
• 20,000 tons of materials removed by river transport.

Major milestones and objectives:

Health – Safety: Sharing common values for 100% safety and the SNCF Réseau program "Our lives, our priority," which includes systematic analysis of high-severity potential events, Stop & Go, shared vigilance, and numerous trainings.

Environment: Use of bio-sourced materials and implementation of a multimodal logistics strategy relying on rail and river transport.

Digital: Lifecycle monitoring of the structure with a BIM model; during the design-construction phases, up to maintenance.

Employment: 158,000 hours of work on the site reserved for people distanced from employment.