In reply to gezebo:
The Austrian scheme seems to encourage people to visit areas where they won't need a car, but doesn't seem to exclude other visitors. It's all carrot, whereas the proposed Welsh scheme is all stick.
Like the previous proposals, it won't work and will simply deter visitors. This could easily add an hour or more both at the beginning and end of the day, and much as I love Snowdonia this makes it more likely I'll go elsewhere.
Much of the parking 'chaos' is because they've closed the laybyes. Most of the people parking in these areas are from the outdoor community, is there any evidence that they want a 'structured visitor experience', whatever that is?
If the authorities feel Snowdonia is too busy and want to restrict numbers, fair enough. They live there, whereas I realise that I am part of the problem. But they can't have it both ways - they can't create more jobs in tourism by deterring visitors.