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RATP, SNCF, Grand Paris Express: construction sites are making a comeback


After weeks of stoppage, all the Ile-de-France projects to extend or create new lines have resumed, not all at the same

Future metros at a standstill, new tram lines on stand-by, extension of an unresolved RER: construction sites in transport have suffered from the health crisis. These works have now all resumed, but cannot run at full speed due to sanitary measures. Uncertainties remain on the commissioning dates.

In addition to the Grand Paris Express metro sites, led by the Société du Grand Paris, here is the list of work in progress conducted by the RATP, the SNCF and Ile-de-France Mobilités, on which 2,500 people are mobilized. It will undoubtedly be necessary to count a few months of delay compared to the entry into service initially planned.


Line 14 North between Saint-Lazare and Mairie de Saint-Ouen. Commissioning initially planned for: September 2020. The development of the four new stations resumed at the end of April, as did the testing of the new trains at night.

Line 14 South between Olympiades and Orly. Planned in 2024. The three tunnel boring machines have resumed their digging, the last dated May 11. 100% of the worksites on this section have restarted this week.

Line 12 between Front Populaire and Mairie d'Aubervilliers. Planned in 2021. It started again on May 18, after a preparatory phase.

Line 4 between Mairie de Montrouge and Bagneux. Planned in 2021, automation in 2022. The installation of landing doors, prior to the automation of the line, has resumed. Mairie de Montrouge is equipped, making 17 stations ready out of the 27 on the line. A command post (PCC), essential for running metros without drivers, was put into service on May 3.

Line 11 between Mairie des Lilas and Rosny-Bois-Perrier. Planned in 2023. The tunneling machine Sofia resumed its digging on May 25, from the future La Dhuys station. 6 new stations are under construction.


T4 between Arboretum and Montfermeil Hospital. Scheduled for April 2020. Dynamic tests on this new section will only be possible at the end of June. The rest of the extension, from Gargan to Arboretum, was commissioned last December.

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T9 between Paris porte de Choisy and Orly-Ville. Planned in December 2020. The site gradually resumed on April 14 with 10 to 20% of the workforce, and reached the end of May 50% of the workforce, or 250 people. There are still ways to lay in Choisy-le-Roi. The tests of the new trains continue.

T10 between Antony and Clamart. Planned in 2023. Work has gradually restarted since May 11, with the development of avenues in Châtenay-Malabry.

T12 between Massy and Evry. Planned in 2022. Three weekends when the RER C was cut in May made it possible to complete complex operations to stabilize embankments in Savigny and Epinay. It remains to push a bridge over the A6 in June, after the postponement of these works in March.

T13 between Saint-Cyr-l'Ecole and Saint-Germain-en-Laye. Scheduled for the end of 2021. Correspondence with the RER A, laying of tracks, creation of stations… Work has resumed, but at a reduced rate due to health constraints.


RER E between Saint-Lazare and Mantes-la-Jolie. Scheduled for late 2022 to Nanterre and late 2024 to Mantes. The site resumed at Porte Maillot in April, at Les Mureaux on May 4, in Epône on May 11, in strict compliance with the barrier measures.

How the SNCF prepares stations for deconfinement in Paris

Source: leparis

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