After more than two weeks of disruption, trains will be running normally from Geneva to Lausanne from tomorrow.
Train links between the two cities have been limited because of land subsidence at Tolochenaz.
Tonnes of concrete has been used to secure the tracks and trains have been running at low speed while engineers check the stability of the repairs.
Swiss Federal Railways say a normal timetable will be in place tomorrow – but the lines will still be under constant observation for the time being.