Overview
- Traffic agencies reported heavy jams on Saturday morning, with nearly 30 kilometres of congestion on the A7 and Vinci Autoroutes estimating roughly 8 million road travellers on peak days.
- Rail operators logged concrete incidents on Friday—an animal strike on the Atlantique route, an electrical fault on the LGV Sud‑Est and fallen‑tree damage near Villennes‑sur‑Seine—that produced delays up to about two hours and some cancellations.
- SNCF has intensified checks, parked selected rakes proactively and said SNCF Réseau stands ready to deploy its 'Fortes Chaleurs' plan with thousands of field agents to protect infrastructure and rolling stock.
- Passengers and local tourism providers are adapting: travellers carry water, fans and early‑departure plans, while many campings report high bookings and readiness for arrivals this weekend.
- The heatwave raises operational risks for older air‑conditioning systems and track equipment, so operators may reduce speeds or cancel some services to preserve assets and limit wider disruption over the weekend.