FRENCH transport minister, Mr Patrice Vergriete, joined Ms Valérie Pécresse, president of the Île-de-France region and its transport authority, Île-de-France Mobility (IdFM), RATP Group CEO Mr Jean Castex and other dignitaries on June 13 to officially open the extension of metro Line 11 from Mairie des Lilas to Rosny-Bois Perrier.

The extension runs for 6km with six new stations at Serge Gainsbourg, Romainville-Carnot, Montreuil-Hôpital, La Dhuys, Coteaux-Beauclair and Rosny-Bois Perrier on RER Line E.

From 2031 Rosny-Bois Perrier will be served by Line 15 of the Grand Paris Express automated metro network currently under construction. Romainville-Carnot is due to be served by an extension of light rail line T1 from 2027.

The Line 11 extension is expected to be used by over 85,000 passengers day. By bringing the metro to eastern suburbs previously served by bus, it cuts the journey time from Rosny-Bois Perrier to Châtelet in the centre of Paris from 55 minutes to 25 minutes.

NGE was the leader of a consortium also comprising Demathieu Bard, Implenia and Pizzarotti that delivered a major civil works package for the extension. This included the excavation of 3.8km of tunnel using a tunnel boring machine (TBM), 480m using traditional tunnelling methods, and 170m of cut and cover tunnel.

The consortium also built the new stations at Serge Gainsbourg, Romainville-Carnot, Montreuil-Hôpital and La Dhuys, as well at three ancillary structures for ventilation and emergency access at Fort-de-Noisy, Demi-lune, and Émile Genevoix.

Map Credit: Île-de-France Mobility

NGE subsidiary TSO led a consortium with ETF that supplied railway systems, including 14km of track on the extension and the new rolling stock maintenance facility at Rosny-sous-Bois.

In parallel with the extension project, the Line 11 fleet of MP59 rubber-tyred trains has been replaced. Deliveries began last summer of 32 MP14 five-car trains supplied by Alstom for €380m, funded entirely by IdFM.

The new fully-accessible MP14 trains can each accommodate 562 passengers compared with 452 for an MP59, and will enable RATP to operate trains at headways of 2min 5sec in the peaks. The delivery of seven additional MP14 trains by the end of this year will enable peak headways to be further reduced to 1min 45sec.

To operate the extension, RATP has recruited 80 new drivers as well as 100 new station staff.

In order accommodate the rise in passenger numbers that the extension is forecast to produce, 10 of the 13 existing stations on Line 11 have been refurbished, including work to adapt platforms to the wider MP14 trains. New station entrances and emergency exits have been provided, together with new lifts and escalators.

“After 20 years of studies and construction work, I am immensely proud to be able to open this historic extension of metro Line 11,” Pécresse says.

“It is another great success of the transport revolution in this year marked by the Olympic Games and the delivery of three very major transport projects.”

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