Regionalverkehr Bern-Solothurn

The full line was opened on 9 April 1916, but for the first eight years, passengers were obliged to change trains in Zollikofen.

The subterranean RBS train station in Bern is the country's eighth-largest in terms of passenger usage, with 49,000 people using it on peak days.

Planning has already started to increase the size and capacity of the station in terms of passenger flow and number of trains it can handle.

In 2009, a 15-minute interval for all lines was planned, which takes the station to the limit of its ability to handle passengers.

New 120 km/h train sets have been introduced on the RE line (Bern - Solothurn) to enable running at 15-minute intervals.