S2 (RER Vaud)
The S2 is a railway service of RER Vaud that provides hourly service between  and  in the Swiss canton of Vaud. On weekdays, the line also runs between Lausanne and . Swiss Federal Railways, the national railway company of Switzerland, operates the service. Prior to the December 2022 timetable change, the S5 provided a similar service between Grandson and Lausanne, continuing to . Operations 
The S2 operates every hour between  and , using the southern portion of the Jura Foot Line. It skips some stops between  and  and is paired with the S1 (which makes all local stops), combining for half-hourly service between. On weekdays both the S1 and S2 operate between Lausanne and . The S3 and S4 also operate between Cossonay-Penthalaz and Cully, raising the service frequency to every 15 minutes. History 

The "first" S2 was one of the six original lines of the RER Vaud, then called the Vaud Express Network (, REV), when that system was established in December 2004. It ran hourly between Vallorbe and , on the Lausanne–Bern line. With the December 2015 timetable change, the S2's eastern terminus shifted to , on the Simplon line. The eastern terminus moved further to  in December 2020. The RER Vaud lines were substantially reorganized for the December 2022 timetable change. The S2 was shifted to the Jura Foot Line, replacing the S5 between Grandson and Lausanne. Where the S5 had operated to Aigle, with limited service further east, the new S2 terminated in Cully on weekdays and Lausanne at other times. References

External links 
 2023 timetable: Grandson–Lausanne and Lausanne–Cully

RER Vaud lines
Transport in the canton of Vaud