More than 3,000 people brought their road safety skills up to speed at Silverstone on Sunday.
Crash re-enactments, police car ride-alongs and moped circuits gave drivers of all ages the chance to learn about the importance of road safety.
It was organised by the Northamptonshire Safer Roads Alliance, which is made up of the county’s fire and rescue service, police and highways department.
Police and crime commissioner Adam Simmonds said: “It was an amazing day.
“It was a great opportunity for people to take part in a range of fun activities and see the emergency services working together. I’m looking forward to it being even bigger and better next year.”
The main aim of the event was to raise awareness and help make Northamptonshire’s roads the safest in the country and chief constable Adrian Lee said he was ‘delighted’ to see so many people attend.
Inspector Jen Helm, who led the organisation, of the event said: “It went fantastically well.
“And it was a really fun day for the children. Everybody has been really pleased by how it’s gone.”
Brackley resident Stewart Chidlow, who went to the event with his family, said: “We all really enjoyed it. Watching the police do the demonstrations of the 999 runs was great.”
Clare Edwards, from Greens Norton, said: “We had a really nice day. It was nice chatting to the police officers and the people from the fire service about their experiences and the displays were really good.
“It’s a really sobering thought when you see what can happen as the result of an accident.”