| Île-de-France tramway Line 11 Express | |
| Owner: | Île-de-France Mobilités |
| Start: | Épinay-sur-Seine |
| End: | Le Bourget |
| Stations: | 7 |
| Type: | Tram-train |
| System: | Tramways in Île-de-France |
| Operator: | Transkeo |
| Stock: | Alstom Citadis Dualis |
| Linelength Km: | 11 |
Île-de-France tramway Line T11 Express (known as the Tangentielle Nord and Tram Express Nord during the planning phase) is a suburban tram-train line in France. Opened in June 2017, it links Epinay-sur-Seine with Le Bourget, with planned extensions linking Sartrouville to Noisy-le-Sec. The line is operated by Transkeo, a joint venture 51% owned by Keolis and 49% owned by SNCF Voyageurs. The line is designated as an "express" tramway line, which means that the standard ticket t+ is not valid on it.
The line, when completed, is planned to be 28km (17miles) long, running from Sartrouville to Noisy-le-Sec, from the northwestern to the northeastern suburbs of Paris. It will have interchanges with existing Transilien train lines, trams, metro, and Réseau Express Régional (RER) lines A, B, C, D and E.[1] There will be six new stations and eight interchange stations. The route runs on new tracks along the Grande Ceinture.
The project, which was granted approval in May 2008,[2] was planned by Syndicat des transports d'Île-de-France (STIF) and jointly managed by SNCF and Réseau Ferré de France (RFF).[3]
Work on the initial section of the line started in 2009, and it opened on June 30, 2017. It consists of 7 stations from Epinay-sur-Seine to Le Bourget stations,[4] for a total travel time of 15 minutes, an average speed of around 50km/h and sections allowing maximum speed of 100km/h.
Two extensions are planned: a westerly extension with 4 stations from Sartrouville to Epinay-sur-Seine, and an easterly extension with 3 stations from Le Bourget to Noisy-le-Sec. The opening of both extensions is planned for 2033, though this has not been confirmed as of 2024.[5]
The total line's overall cost is estimated to be around €1.5 billion.