The Zollikofen–Worblaufen line was opened in 1924, allowing trains to run directly between Bern and Solothurn (until then passengers had to change in Zollikofen).

Passenger traffic is now integrated into the Bern S-Bahn, while operation of the remaining freight traffic was transferred to SBB Cargo in December 2012.

Worblaufen is the centre of operations and also has a depot and the RBS workshop.

All trains run from Worblaufen ro Bern on the Zollikofen–Bern railway .

Except for a short section, there are multiple tracks between Worblaufen and Jegenstorf and between Grafenried and Fraubrunnen.