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Bison Futé Flags Black Alerts in Auvergne-Rhône-Alpes as France Hits Red for Holiday Departures

Drivers faced severe delays on major routes Saturday under top-level warnings; return flows are poised to surge again Monday under orange alerts.

La journée de samedi 12 juillet est classée rouge au niveau national, et même noire en région Auvergne-Rhône-Alpes, l’un des principaux points de tension du réseau.
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Overview

  • Bison Futé elevated Saturday departures to black in Auvergne-Rhône-Alpes and red nationwide, marking the highest congestion warnings for this summer wave.
  • Sytadin reported 247 kilometers of traffic jams in Île-de-France by midday Friday, confirming the intensity of gridlock on key arteries.
  • Critical bottlenecks formed on the RN165, A10 and A11 toward the Atlantic, on the A8 and A9 to the Mediterranean, and through the Mont-Blanc tunnel approaches.
  • Motorists encountered multi-hour standstills by Saturday morning, particularly on routes feeding Île-de-France and southeastern highways.
  • Return traffic is forecast to intensify Monday afternoon under orange alerts in Île-de-France and Provence-Alpes-Côte d’Azur, prompting drivers to adjust travel plans.