Silverstone has put in place a contingency plan in the event that torrential rain hits the circuit and surrounding car parks.
The forecast for the weekend suggests heavy rain is expected across all three days, which has prompted organisers to plan for the worst case scenario which may include bumper-to-bumper parking in the limited gravel car parks.
“We are trying to pre-empt events, and we have contingency plans in place,” said circuit boss Richard Phillips. “Whether we use them or not will be reviewed as we go on, and that is looked at every four hours.
“We have a lot of hard standing car parks, and car parks with road ways in them, but we have some car parks that are fields. As of yesterday afternoon they were alright, but as of this morning they have gone on to amber status.
“They will bear up if there is no more rain, and will certainly bear up for one day, but what we need to try and do is make sure we are okay for three days.
“So if at 5am tomorrow morning we have had a lot of rain, then it could be that we have to get into a situation of bumper-to-bumper parking on hard standing.
“We would rather do that, if we had to, and make sure people can get into a car park and out of a car park rather than skidding around on mud – with health and safety issues.”
125,000 spectators are expected on Sunday, with 80,000 on Friday and Saturday.