"The A9 motorway will be closed at night from 12 to 22 March between the junctions of Lausanne-Vennes and Chexbres, in the direction of Vevey. Work is needed to set up the speed harmonization and hazard warning system.
The motorway will be closed to traffic from 10:00 p.m. to 5:00 a.m., the Federal Roads Office said in a statement on Thursday. A detour will be set up on the secondary network."