Despite 90% of the route being in Switzerland, German Rail (DB) owns the infrastructure and is spending €90m on the overall upgrade. In addition to electrification, the 12km line will be double-tracked and a new signalling system will be installed to allow a half-hourly service.

The Pöyry-PTB consortium would not disclose the value of its contract with DB which will commence immediately and be completed within 22 months.