U4 (Hamburg U-Bahn)
| U4 | |||
|---|---|---|---|
| Overview | |||
| Stations | 12 | ||
| Service | |||
| Type | Rapid transit | ||
| System | Hamburg U-Bahn | ||
| Operator(s) | Hamburger Hochbahn | ||
| History | |||
| Opened | 2012 | ||
| Technical | |||
| Line length | 11.9 km (7.4 mi) | ||
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) | ||
| |||
The U4 is a line of the Hamburg U-Bahn, which opened in 2012, serving 12 stations. It is the shortest line of the network, with a length of 11.9 kilometres (7.39 mi) and from Jungfernstieg to Billstedt it shares tracks with the U2. Its identifying colour, as seen on route maps, trains, and station signs is turquoise.