The director of the CLA Game Fair has promised a major review after the event was marred by traffic chaos.

More than 151,000 attended the event at Blenheim Palace, which finished at the weekend and organisers say it was a big success.

But on Friday, there was gridlock on the county's roads as tens of thousands of drivers headed to Woodstock for the world's biggest game fair, run by the Country, Land and Business Association.

There were lengthy delays after a car overturned north of the Peartree roundabout shortly before 8.30am.

Game fair director David Hough promised a review of this year's event, including a thorough analysis of the traffic problems.

He added: "Game Fair staff and representatives of the West Oxfordshire Safety Advisory Group, which includes police and local authorities, will meet in October.

"Information will be gathered in advance of the meeting and there will be a thorough review by all parties.

"We had a record attendance of 151,000 and the people who attended the show, and the exhibitors, really enjoyed it.

"Many people who come to the show stay in the area for three nights and it's a real boost for the local economy.

"We would like to come back in 2012 - that's the current plan."

Many drivers were furious that their journeys were disrupted because of the game fair.

Peter Barratt said: "I had to cancel a visit to a friend in Brecon because it took me two hours to get from my flat in Cherwell Drive to the roundabout at the end of Banbury Road.

"Seeing no sign of any clearing of the traffic, I turned round and came home. The appalling gridlock must have caused thousands of similar disappointments.

"The lesson to be learnt from this shambles is that Woodstock is not a suitable venue for such a huge event.

"There is not enough space and too many different major roads bring too much traffic into the surrounding area."