Traffic agency Bison Futé has classified Friday 24 and Saturday 25 July 2026 as "rouge" nationwide in the south-bound direction and on key Atlantic and Mediterranean corridors, warning drivers to avoid the A7, A9, A10 and the Mont-Blanc tunnel during peak hours. In its bulletin published at 15:16 on 24 July, La Dépêche du Midi details time-stamped advice such as leaving Île-de-France before 06:00 or after 15:00 on Saturday and steering clear of the A63 to Spain between 11:00 and 15:00. The alert matters to mobility managers because road congestion can cascade into missed flights and rail connections, especially with simultaneous RER and SNCF engineering works. Several relocation firms have rescheduled household-goods deliveries and orientation tours to avoid the crush. Logistics providers transporting sensitive pharma cargo report reserving nighttime slots at toll plazas to keep cold-chain integrity. Bison Futé also notes a rise in wildfire-related diversions in Gironde and the southern Rhône Valley, another variable for route planning. Companies running shuttle buses for expatriate families heading to summer rental properties have circulated revised itineraries with extra rest stops to comply with EU driving-time rules. Looking ahead, the agency predicts the traditional "chassé-croisé" between outgoing Julyists and incoming Augustians next weekend will be even tougher, signalling sustained strain on mobility supply chains into early August.
Source: La Dépêche du Midi
