Buckinghamshire County Council's statistics showed that about 20% of the county's collisions were single vehicle crashes on bends on rural roads mostly due to drivers or riders losing control of their vehicles. Analysis highlighted one particular bend. This already had a double-bend sign, slow sign and a double white-line system to warn drivers. In tests, an advanced rider/driver reported being able to negotiate the bend comfortably at the national speed limit. He also examined the 'vanishing point', the furthest point along a road to which a biker or driver has an uninterrupted view of the surface. On a level stretch, this is where the two sides of the road appear to intersect. On a bend, the vanishing point moves as the rider/driver goes round the bend. Motorcyclists are trained to look at the vanishing point and advised 'where you look is where you go'. This resulted in Buckinghamshire's scheme being called WYLIWYG. The solution was to extend the black and white 'vergemaster' posts into the straight. The scheme has reduced the number of incidents at the UK site.
Samenvatting