Zug Stadtbahn

The Zug Stadtbahn (Stadtbahn Zug) is an S-Bahn-style commuter rail network centred on Zug, Switzerland.

Opened on 12 December 2004, the network forms part of the Central Switzerland S-Bahn project (S-Bahn Zentralschweiz), which also includes the Lucerne S-Bahn (S-Bahn Luzern).

Lines
, the network consisted of the following lines:


 * Baar–Zug–Cham–Rotkreuz–(Luzern) (also  of the Lucerne S-Bahn)
 * Baar Lindenpark–Zug–Walchwil–Arth-Goldau–(Erstfeld)

Reconstruction of the railway line on the east side of Lake Zug led to the suspension of the S2 between and  beginning on June 9, 2019. S2 services from will operate to. S2 service was suspended altogether on 9 April 2020.

Rolling stock
The trains acquired by the SBB-CFF-FFS to operate the S1 services on the Zug Stadtbahn are SBB-CFF-FFS RABe 523 class electric multiple units. However, when the S1 was opened in 2004, there were not enough of these trains available to provide a full service, so they were supplemented by a Neuer Pendelzug (New Commuter Train) (NPZ), consisting of an SBB-CFF-FFS RBDe 560 hauling a B (second class car) owned by Thurbo as a Mittelwagen (intermediate car) and an NPZ Bt as a Steuerwagen (control car/cab car/driving trailer).

Additionally, Basel Regional S-Bahn trains were used to operate some services in 2008.

Since December 2008, all Zug Stadtbahn services have been operated by a fleet of twelve RABe 523s.