Man of Honour
- Joined
- 17 Nov 2003
- Posts
- 36,747
- Location
- Southampton, UK
I've always regarded "20 'zones'" as being "we'd really like you to do 20mph here, kthxbye" rather than actual 20mph limits.
A proper 20mph limit would be a red circle with 20 inside it. Most "20 'zones'" I've seen are a black circle with 20 in it, and the word "zone" underneath it - I see this as a recommendation rather than a rule.
That's because it is a recommendation. There are more and more actual limits now though, which are the 20 in a red circle.