T4 tramway service changes announced

From 26 to 30 October 2026, the T4 tramway will be interrupted between 9:15 p.m. and 5 a.m. daily between Bondy, Aulnay-sous-Bois, and the Montfermeil Hospital. Replacement buses are planned for passengers during these disruptions, as confirmed by RATP traffic information and the line sheet published by Transilien.

T4 tramway route details

The T4 connects Bondy to two different termini: Aulnay-sous-Bois on one side and the Montfermeil Hospital on the other. The two branches share a common route up to Gargan, before splitting, and the closure affects the entire tramway, not just a single section.

Impact on residents and travelers

Residents of Bondy, Pavillons-sous-Bois, Livry-Gargan, Clichy-sous-Bois, Montfermeil, Sevran, and Aulnay-sous-Bois will need to revise their movements after work, classes, or late activities during these five evenings. The period corresponds to the All Saints' Day holidays, but the mobility needs of workers with shift hours and other travelers remain.

Replacement bus service details

The announced plan includes replacement buses serving intermediate stations, as mentioned in the disturbance bulletin published on 24 October by Bonjour RATP. This service should allow continuing journeys on the routes usually covered by the T4 during the interruptions, though no specific departure times or bus frequencies are indicated in the weekly bulletin.

Travelers advised to plan accordingly

Travelers are therefore advised to plan their journey for the exact date and time of their trip. The announced restriction begins in the evening, and for trips made earlier in the day, the T4 work schedule remains the reference point to check the planned service for the chosen date.

Resources for updated information

To consult the schedules of replacement buses and adapted routes, Transilien refers to its route calculator and work schedule. Travelers can also check updated information on the T4 traffic page. The last announced interruption evening is that of Friday 30 October, with work extending into the following night.