Drivers planning to use the M1 and A43 in the East Midlands over the next few days are being warned to to plan ahead and allow extra time as the MotoGP gets underway at Silverstone tomorrow.
It will last until Sunday and roads on the approach to the circuit are likely to be busy, the Highways Agency are warning.
55,000 people are expected on Sunday, the final day of the event.
More top news
Steve McClaren says he's "very disappointed" by Derby County's decision to terminate his contract.
Chance of an isolated light shower affecting Lincolnshire early evening, though most places will stay dry with some late sunshine.
Derby County fans have been tweeting their reaction to the news that Steve McClaren has been sacked from his position as head coach.