Opened on 12 December 2004, the network forms part of the Central Switzerland S-Bahn project (German: S-Bahn Zentralschweiz), which also includes the Lucerne S-Bahn (German: S-Bahn Luzern).
Lines
As of 2019[update], the network consisted of the following lines:
Reconstruction of the railway line on the east side of Lake Zug led to the suspension of the S2 between Zug Oberwil and Arth-Goldau beginning on June 9, 2019. S2 services from Erstfeld will operate to Rotkreuz.[1][2] 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.[3] 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.[3]
