Île-de-France tramway Line 1

Île-de-France tramway Line 1 is part of the modern tram network of the Île-de-France region of France. Line T1 connects Noisy-le-Sec station and Les Courtilles with a suburban alignment running in parallel to the Northern city limits of Paris. The line has a length of 17 km and 36 stations. It opened in 1992 as the first modern tram line in the Paris region. The line was extended in December 2003 and November 2012.

Line T1 is operated by the Régie autonome des transports parisiens under the authority of Île-de-France Mobilités. Daily ridership reaches 188,000 passengers making it the second busiest line of the tram network.A 1-stop extension to the west towards Quatre Routes is currently under construction and due to open to the public in mid-2019. A further extension to the west towards Colombes is currently at the planning stage.