Line 17
Overview
Termini	Saint-Denis–Pleyel Le Mesnil–Amelot
Connecting lines
Stations	9
Service
System	Paris Métro
Operator(s)	Keolis
Rolling stock	Alstom Metropolis MR3V
History
Planned opening	mid-2027 (Saint-Denis–Pleyel to Le Bourget–Aéroport) 2028 (Le Bourget - Aéroport to Parc des Expositions) 2030 (full line) after 2030 (Saint-Denis–Pleyel to Nanterre-La Folie)
Technical
Line length	25 km (16 mi)
Track gauge	1,435 mm (4 ft 8+1⁄2 in)standard gauge
Electrification	Overhead line, 1,500 V DC

Lines 16 and 17
Legend
Noisy–Champs Marne Chelles–Gournay Le Mesnil-Amelot Clichy–Montfermeil Aéroport CDG 2 TGV ↑ opens 2028 ↓ opens 2027 opens 2030 ↑ opens 2028 ↓ Sevran–Livry Parc des Expositions Sevran Beaudottes Aulnay Val Francillia Gonesse Aulnay workshop opens 2028 ↑ opens 2027 ↓ Le Bourget Aéroport Parc du Blanc-Mesnil Le Bourget   La Courneuve–Six Routes Saint-Denis–Pleyel   proposed (2030+)   Colombes  La Garenne-Colombes Nanterre–La Folie All stations are accessible
This diagram: view talk edit

Paris Métro Line 17 is one of four lines of theGrand Paris Express. It is planned to open in phases from 2027 through 2030.^[1] Sections will be above ground, includingParc des Expositions station.

The line is planned to be opened in three stages:^[2]

• In mid-2027, fromSaint-Denis–Pleyel toLe Bourget–Aéroport,
• In 2028, fromLe Bourget–Aéroport toParc des Expositions,
• In 2030 fromParc des Expositions toLe Mesnil–Amelot.

For an opening after 2030, an extension fromSaint-Denis–Pleyel toNanterre–La Folie is under study.

The first opening stage was initially planned for 2024 to coincide with the2024 Summer Olympics. Delays (partially due to the COVID-19 pandemic), the opening of the first phase was delayed in 2022, with opening planned in 2026.^[3] It is planned that the station Le Bourget–Aéroport will be opened together with the common trunk shared withLine 16.^[4] In February 2025, a further delay was announced, with the first phase now due to open in mid-2027, due to delays in the construction of line 15 which shares its automated driving system with lines 16 and 17.^[1]

In May 2023, it was announced that the line will be operated byKeolis, while the infrastructure is managed byRATP.^[5]

Initially, a station was planned for the futureTerminal 4 of Charles-de-Gaulle airport. However, the project for the new terminal was cancelled in 2021.^[6] In October 2024, it was announced that the corresponding metro station will not be built.^[7]

Line 17 will connect thePlaine Commune employment area toCharles de Gaulle Airport. It will be possible to reach the latter from Paris by connecting withline 14 atSaint-Denis–Pleyel.

The line starts underground inSaint-Denis inSeine-Saint-Denis at the stationSaint-Denis–Pleyel. It shares the same tracks asline 16. The station has connections to line 13 (via a pedestrian walkway), line 14, line 15 (same-platform interchange of the departure platform of line 17 with line 15 towardsNoisy–Champs station) and theRER D. Track connections allow for the exchange of equipment with line 15.

The line, running parallel to line 15, passes under the Paris-Nord station rail line and then follows Avenue François-Mitterrand. It passes under the Landy tunnel, then runs alongsideLa Plaine – Stade de France station and the Stade de France station on line 15, before turning northeast. InLa Courneuve, it serves the La Courneuve – Six Routes station, which is also served by line 16 and theT1 tramway, then heads east towardsLe Bourget, serving theLe Bourget RER station, which connects with theRER B and theT11 Express tramway. This station has four tracks with two island platforms because lines 16 and 17 separate here (line 17 trains stop on the outer tracks).

Each track is now in a single tunnel slanting north. The northbound track passes under line 16 before the two tracks meet and run northeast parallel to theN 2 before servingParis–Le Bourget Airport. The line runs along theRN17 and the runways of Le Bourget Airport, then enters the town ofGonesse and heads east to the station Triangle de Gonesse.

The line then comes above ground and crosses the A1 and A3 highways while running alongside the A104. It passes a track connection to a maintenance center inAulnay-sous-Bois, which is shared with line 16, and then bends northwards along the RER B tracks before serving the stationParc des Expositions inVillepinte, which connects with the RER B.

The viaduct then heads east along the D40, before the line goes back underground and bypassesTremblay-en-France to the north. The tunnel runs parallel to theLGV Interconnexion Est and passes under the runways of Charles-de-Gaulle airport. The line arrives at theAéroport Charles-de-Gaulle Terminal 2 station located parallel to the SNCF station and theCDGVAL station underneath Terminal 2. It then passes over the site that was intended for the Aéroport Charles-de-Gaulle Terminal 4 station (both the planned terminal and the station have since been cancelled), and then heads northeast to arrive at the above-ground terminus station Le Mesnil-Amelot.

In July 2018,Alstom was selected to supply the rolling stock for the Grand Paris Express project at a cost of €1.3bn for 183 trains.^[8] In March 2019, an order of 23 3-car trains was confirmed, albeit that the trains will be shared between lines 16 and 17.^[9] Shorter 3-car trains were ordered to reduce construction and operational costs, and because the lines are forecast to have a lower level of ridership thanLine 15.

The specifications of the trains travelling lines 16 and 17 and their operation are as follows:^[9]

• Train width: 2.80 metres (9 ft 2 in) minimum
• Train name:Alstom Metropolis MR3V
• Train length: 54 metres (177 ft), made up of 3 cars with full-open interior gangways
• Train capacity: around 500 passengers
• Rails: iron
• Electric traction current: 1500 volt direct current viapantograph and contact wires^[10]
• Operation: Fully automated
• Maximum speed: 120 kilometres per hour (75 mph)^[11]
• Operating speed: 55 kilometres per hour (34 mph)^[11]
• Average interval: 3 to 4 minutes^[11]
• Minimum interval: 2 minutes^[11]

• Transport in Paris
• 2026 in rail transport
• Paris Métro line 17
• Paris Métro stubs

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• Articles with short description
• Short description matches Wikidata
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