EXPERT Dave Moyes knows what he is talking about when he brands a junction on the A35 the most dangerous in Dorset.

He gave me a motoring masterclass down the seven-mile stretch that has claimed numerous victims.

He is one of the advanced driving instructors contracted by Dorset County Council to give people one-to-one tuition because the road is so dangerous.

Just after 9am he pulled away from Bere Regis petrol station and down the seven-mile stretch to the Bakers Arms roundabout.

The straight road seems innocuous enough - but it is part of the problem, said Dave. People get carried away and drive faster than the speed limit.

He said: "It's very dangerous to judge the speed of oncoming traffic on these roads. You put your foot down, the other person does the same, and you could in trouble."

Then there is the first of a tricky breed - a staggered junction to Wareham. "It's a particularly dangerous crossroads," said Dave.

Other road users were also a worry. A car was itching to get past us. On the way back, a silver Mercedes tailgated us, while other cars overtaking a tractor made Dave get on the brakes.

A series of dips followed, concealing oncoming cars. Then there were overhanging trees - the shafts of light they let through cause problems with vision, and they create a microclimate that can leave stubborn patches of frost.

But the biggest danger was the Morden staggered crossroads. Cars waiting to turn block the road at the top of a crest and cars approaching at up to 70mph do not see them until the last second.

"It's a really, really dangerous junction," he said. "You would be absolutely stunned to see what goes on there. I believe it has more collisions than any other in Dorset."

Then it's down more straight roads to the Baker's Arms - and Dave noted the bouquets of flowers left at several spots for crash victims. The trees were by the roadside and looked like they would be unforgiving in a crash.

All the while Dave was showing me how to do it - moving the car to get maximum view round the bends, and scanning so far ahead he mentioned a car turning on to the road after Slepe several seconds before I could even see it.

But whatever the road, Dave is clear on the number one danger - drivers themselves. He said 96 per cent of accidents are down to driver error. Driving too close and speeding are the main causes.

And he said they should be called collisions rather than accidents - because an accident suggests they are unavoidable.