Île-de-France tramway Line 14 (T14; ) is a suburban tram-train line in Seine-et-Marne, east of Paris, which opened in March 2025. The line is operated by Stretto. The line took over the from Transilien Line P between Esbly and Crécy-la-Chapelle, keeping the same rolling stock, route and schedule. It is the least frequented tramway line in Île-de-France, with around passengers per day. History. The Esbly–Crécy-la-Chappelle line was opened in 1902. The line was converted into a tram-train line with the introduction of the Siemens Avanto rolling stock on 4 July 2011. Due to reliability issues, it was replaced by the Alstom Citadis Dualis on 8 March 2022, following tests on 12 February. Following a European Union decision, public transport in Île-de-France was . One of the two contracts pertained to operating lines 4 and 11 of the Île-de-France tramway, and the Crécy-la-Chappelle–Esbly branch of Transilien Line P, which were allotted together as they used the same Dualis rolling stock and the same maintenance facilities in Noisy-le-Sec. It was awarded on 12 October 2023 to Stretto, a consortium of Keolis and SNCF Voyageurs created for that purpose. The move was criticized by the left-wing regional opposition, citing fears of degradation of service quality and of worse conditions for railway workers, who would fall under a different legal status. In March 2025, Stretto began operating the Esbly–Crécy-la-Chapelle line, which was split from Transilien Line P as the new T14 line. Route and stations. Line 14 travels from Esbly to Montry, Saint-Germain-sur-Morin, and Crécy-la-Chapelle. It serves five stations, all in fare zone 5.