In reply to d508934:
Just to re-open that kettle of worms, why don't they build a proper, disguised car park somewhere. All this does is create other parking problems on the road side where there are no restrictions, same could be said for many other areas of the national parks.
In the Peak District they don't want to expand existing car parks (the one at Plantation has plenty of extra space that is never open) as this will only encourage cars in to the park, but then cars park all over the verges.