Grand Paris Express

A revised plan for the proposed Grand Paris Express subway system was unveiled on 6 March 2013, and calls for a second extension of Line 11 to be built towards Noisy-Champs. The target opening date is 2030, but might be pushed back. Should the second extension be built, Line 11 will eventually be fully automated.[9] Automatic train operation is not currently planned for the Rosny extension, although the RATP and STIF had considered the possibility of adding it later on.

As of March 2013, it was expected that additional MP 14 stock will be used for line 11.

The automated Line 14 was extended north from Saint-Lazare, with the primary aim of reducing overcrowding on line 13.[10] The adopted solution connects both branches of line 13 to line 14, with stations at Porte de Clichy on the Asnières – Gennevilliers branch and Mairie de Saint-Ouen on the Saint-Denis branch. An additional station connects with the Saint-Ouen RER C station, and another with the Transilien Paris – Saint-Lazare lines at Pont-Cardinet, and the final one with the RER D at Saint-Denis Pleyel. Construction on the extension began in 2014, with an aim of completion by 2019.[11] Completion was later pushed back to 2020 after flooding from the water table stopped the tunnel works for a year. The covid-19 pandemics then further delayed the opening to December 2020.[12]

Line 14 is also being extended south towards Orly Airport. The extension will travel southeastward from Olympiades to Maison Blanche, with a possible connection to Line 7's Villejuif branch, with a planned opening in 2024.

When both extensions are complete, it is expected that Line 14 will eventually be merged into the proposed Grand Paris Express system.[13]

1/10 scale model of the MP 89 for M2 line of Lausanne Métro, of the same type as for line 14

In February 2012 the STIF announced that with the two extensions planned, the brand new MP 14 class of rolling stock will replace the MP 89CA and MP 05 stock on Line 14 starting from 2020. This new stock would be in eight-car train formations, something not yet employed on the Paris Métro but allowed by the length of all Line 14 stations. The current MP 89CA and MP 05 stock would then be reassigned to other lines.[14]

On 22 February 2018, a new timeline is announced by Prime minister Édouard Philippe:[19]

• During 2014: Public inquiry on the eastern section from Saint-Denis Pleyel to Champigny Centre.
• Early 2015: Groundbreaking of the southern section spanning Pont-de-Sèvres to Noisy–Champs.
• 2024, postponed to 2025 in September 2018: Southern section from Pont de Sèvres to Noisy-Champs put into service.
• 2030: western section from Pont de Sèvres to Saint-Denis Pleyel and eastern section from Saint-Denis Pleyel to Champigny Centre put into service.

In 2013, the government led by Ayrault proposed this timeline for the line 15 project:[20][21]

• 2014: Public inquiry on the eastern section from Saint-Denis Pleyel to Champigny Centre.
• Early-2015: Groundbreaking for the southern section between Pont-de-Sèvres and Noisy–Champs.
• 2020: Groundbreaking of the section from Pont-de-Sèvres to Nanterre and from Saint-Denis Pleyel to Rosny-Bois-Perrier on the northern section.
• 2022: Southern section from Pont-de-Sèvres to Noisy–Champs opens.
• Early 2025: Segments from Pont-de-Sèvres to Nanterre and from Saint-Denis Pleyel to Rosny-Bois-Perrier of the northern section put into service.
• 2025: Groundbreaking of the segment from Nanterre to Saint-Denis Pleyel via La Défense-Grande-Arche of the northern section.
• Early 2030: Segment from Nanterre to Saint-Denis Pleyel via La Défense-Grande-Arche of the northern section put into service.
• End of 2030: Northern section from Rosny to Champigny completed.

The proposed rolling stock for line 15 is a new automated design, using conventional steel wheel on steel rail technology and overhead electrification, with a width of 2.80 metres (9 ft 2 in). Alstom has been chosen to build these trains. The names of the train have just been revealed according to the Societe du Grand Paris.

The specifications of the trains travelling line 15 and their operation are as follows:[22][23]

• Train width: 2.80 metres (9 ft 2 in) minimum
• Train length: 108 metres (354 ft), made up of 6 cars with full-open interior gangways
• Train capacity: 960 passengers (at 4 passengers per m²)
• Bearings: iron
• Electric traction current: 1500 volt direct current via pantograph and contact wires[24]
• Operation: Fully automated
• Maximum speed: 120 kilometres per hour (75 mph)[25]
• Operating speed: 55 kilometres per hour (34 mph)[25]
• Theoretical morning rush hour throughput: 34 560 passengers per hour[26]
• Average interval: 3 to 4 minutes[25]
• Minimum interval: 2 minutes[25]

The proposed rolling stock for lines 16 and 17 is a new automated design with a width of 2.80 metres (9 ft 2 in), using conventional steel wheel on steel rail technology and overhead electrification. Just recently the first Alstom Metroplois MR3Y, the name of the train cars for lines 16 and 17, has been built and is already undergoing tests.

The proposed rolling stock for line 18 is a new automated design with a width of 2.45 metres (8 ft 0 in), using conventional steel wheel on steel rail technology and third rail electrification. Alstom has been chosen to build these trains. Ile-de-France Mobilites and Societe du Grand Paris have set up a poll for people to decide the look on line 18. The deadline, according to Ile-de-France Mobilites and Societe du Grand Paris is December 15. At the moment, line 18 is expected to travel from Orly to Versailles.