If you’re planning a long car journey in France this Assumption weekend, you’re going to have to be patient out on the roads, with heightened traffic warnings from Friday.

France’s roads watchdog Bison Futé has warned that summer holidaymakers heading back home from popular resorts are likely to make conditions on the country’s major routes particularly difficult over the weekend.

The worst of the difficulties are forecast for Friday and Saturday, when red and black warnings are in place, but heavy traffic will be prevalent across the weekend and into Monday.

Saturday, August 15th, is the Christian festival of Assumption, which is a public holiday in France and is usually a peak travel period.

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