Transilien Line U
| Line U | |
|---|---|
| A Z 8800 train at Saint-Quentin-en-Yvelines | |
| Overview | |
| Other name(s) | La Défense – La Verrière | 
| Termini | |
| Stations | 11 | 
| Service | |
| Type | Commuter rail | 
| System | Transilien | 
| Operator(s) | SNCF | 
| Depot(s) | Trappes | 
| Rolling stock | Z8800 | 
| Daily ridership | 55,000 | 
| History | |
| Opened | 1995 | 
| Technical | |
| Line length | 31 km (19 mi) | 
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) | 
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Transilien Line U, also known as "La Défense - La Verrière" or more often simply "ligne U", is a tangential commuter train link, which serves the western Paris region from La Défense. It links the Paris's business district of La Défense to La Verrière station, in the south-west of Ile-de-France. It is one of the two commuter train lines in the Transilien network that does not originate from a large Parisian station, along with the V. The line has 55,000 passengers per weekday in 2014.