Badminton Horse Trials kicks off on Wednesday, May 7, and will run until Sunday, May 11, at the Duke of Beaufort’s Badminton House grounds in South Gloucestershire.
Over the course of five days, 170,000 visitors are expected to travel to the prestigious event, with many coming through Wiltshire on the M4.
National Highways has advised drivers in both Wiltshire and South Gloucestershire to plan their journeys in advance with congestion likely on the motorway, particularly around junction 18 at Bath.
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Delays are also possible on the A46 near Tormarton, with the worst of the traffic likely to come on Saturday, May 10.
Kathryn Wiltshire, South West network planner for National Highways, said: “The road network is likely to see higher traffic volumes as a result of the Badminton event, particularly around M4 junction 18 and the A46 to the south of the junction.
“The Cross Country event on the Saturday is particularly popular and for anyone travelling in the area through the week, we’re advising all drivers to check our traffic and travel information channels, to plan ahead, and allow plenty of time for their journeys.”
