September 9 to October 8, 2019Rail traffic is interrupted between St-Gervais and Le Châtelard-Frontière.
A replacement bus service is set up. Bicycles are not allowed in the replacement buses.
From October 7 to November 15, 2019Rail traffic is interruputed between Martigny and Salvan.
A replacement bus is set up between Vernayaz MC and Martigny, as well as between Martigny and Salvan.
Rail traffic is maintained between Salvan and Châtelard-Frontière.