From September 7th to 11th, the RD1506 will be heavily disrupted in the Poya area, between Chamonix and Switzerland. Closed for several hours a day for a week, it will then switch to alternating traffic until November 20th to allow for safety work to address the risk of rockfalls.

The road will be closed between 8:30 a.m. and noon, and then from 1:30 p.m. to 4:30 p.m. Outside of these hours, traffic will be managed by alternating one-way flow. This alternating traffic system will then remain in place continuously until November 20th, including weekends and public holidays.