The A30 closure has been called off ahead of the Royal Cornwall Show

Chris Riddle, the show’s secretary, said the closure was a “big concern” for many people and he was glad it had been called off.

“It caused a lot of confusion and delay,” he said.

“There are also a lot of horses, cattle and sheep moving around, especially on the last day when the animals go home.

“It would have made life a lot more difficult and I think it will make things considerably easier.”

Devon and Cornwall Police said a temporary 30mph speed limit would be in place along the A39 at Hals Grave as heavy traffic was expected over the three days of the show.