Transilien Line V

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Line V
Z 20844 train at Massy–Palaiseau
Overview
Termini	Versailles Chantiers Massy–Palaiseau
Connecting lines
Stations	7
Service
Type	Commuter rail
System	Transilien
Operator(s)	SNCF
Depot(s)	Trappes
Rolling stock	Z 5600, Z 8800, Z 20500, Z 20900
History
Opened	15 December 2024 (2024-12-15)
Technical
Line length	15 km (9.3 mi)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	Overhead line, 1,500 V DC
Operating speed	100 km/h (62 mph)
Route map Show static map Legend Versailles Chantiers      Petit Jouy–Les Loges Jouy-en-Josas Vauboyen Bièvres Igny Massy–Palaiseau     *   Route is not accessible[1] (*) Under construction This diagram: view talk edit Show diagram map

Transilien Line V is a railway line serving the southwestern part of Île-de-France. It connects Versailles Chantiers and Massy–Palaiseau. It belongs to the Transilien network operated by SNCF, the French national railway. Unlike the other Transilien lines (with the exception of Line U), Line V lies completely outside the city limits of Paris.

Before December 2023, the line was operated as a branch of RER C. On 4 December 2023, the line was separated from the RER C and became a shuttle line, in preparation for the opening of the T12 Express tramway line on 10 December 2023. The line is officially designated line V on 15 December 2024.^[2]