Stretching the T3 line by 4.4 km to the south, this extension connects Castellane to La Gaye with new strategic stations. Métropole Aix-Marseille-Provence invested in the project as part of a €534 mil Vinci · SNCF · News
Marseille Tram La Gaye Extension (Castellane–La Gaye) is a tram project in France, currently operational.
Stretching the T3 line by 4.4 km to the south, this extension connects Castellane to La Gaye with new strategic stations. Métropole Aix-Marseille-Provence invested in the project as part of a €534 million mobility plan that includes new CAF trams and a 600-place park-and-ride facility. The extended route opened to passengers in January 2026, providing a 40-minute link across the city.
Construction began in 2021 and the project opened in 2026.
The project has an estimated investment of €320M.