A network of roads is to be built on the site of the Great Dorset Steam Fair to stop bad weather disrupting the event.
Last year, tractors were brought in to tow vehicles and there were long queues for the site at Tarrant Hinton near Blandford Forum. Some displays had to be cancelled. Organisers are planning to change the layout and are applying for permission for more than three miles of permanent roads.
Organisers of the Great Dorset Steam Fair say it was a huge success despite a muddy start. Visitors praised a special World War One exhibit recreating life in the trenches. Rain at the start of last week caused boggy conditions. But the ground dried up by the weekend and sunshine help bring in the crowds.
The organisers of the Great Dorset Steam Fair say that conditions are still very muddy but are improving this morning. Yesterday many visitors to the fair were stranded for hours waiting to be towed through the mud.
The wet weather has proved a challenge for people going to one of the West Country's biggest events.
The Great Dorset Steam Fair got underway today as heavy rain turned fields into a quagmire.
Traffic queued for up to four hours to get on to the site near Blandford Forum.
Organisers had earlier appealed for extra tractors to help tow vehicles through muddy fields.
Our Dorset correspondent Duncan Sleightholme has spent the day there:
Wet weather has proved a challenge for people going to The Great Dorset Steam Fair.
Many exhibitors were forced to sleep overnight in their cars when they couldn't get to the muddy camping fields.
There have been queues of over 4 hours to get into the car parks, as visitors head to the site despite the mud.
There are long queues for people trying to get on site at the Great Dorset Steam Fair.
The event at Tarrant Hinton near Blandford starts tomorrow but heavy showers have made it difficult for vehicles trying to get on and move around the site today.
Organisers of The Great Dorset Steam Fair at Tarrant Hinton near Blandford say it is still on for tomorrow, despite the bad weather.
Exhibitors and campers are arriving at the site and the fair is appealing for owners of 4x4s and Landrovers to help out in the mud.
The world record for the greatest number of steam rollers in a formation over a set course was broken at the Great Dorset Steam Fair yesterday (Saturday 31 August), exactly 10 years after the previous record.
102 steam rollers took part in the world record attempt as part of the GDSF 2013 Roller Special, on a brand new road created in the road-making section at the event. This smashed the previous record of 32 from 31 August 2003, which was also held at the fair, near Tarrant Hinton.
The attempt featured a unique range of steam, petrol and diesel rollers representing the history of road rolling. As well as examples from the more common manufacturers, there were also those on show from the rarer makes of roller, with some having travelled from abroad.
Organisers at the Great Dorset Steam Fair will today attempt to beat the world record for the greatest number of steam rollers in a parade formation over a set course. Around 110 steam rollers will participate, travelling on a brand new road created in the road-making section at the event.
The current record is also held by the Great Dorset Steam Fair; a total of 32 vintage steam rollers passed over a length of new road on 31 August 2003, exactly 10 years ago.