In reply to Ian Parsons:
> having incorrect signage in situ for a system that can involve the issuing of fines would be - to say the least - confusing.
Somebody should explain this to Bradford and Sheffield!
I drove through the Bradford zone in the summer on a route that was all on main roads where you did not encounter a single sign that there even was a zone.
I'm not from the area and hadn't planned on going through Bradford, but got diverted through Bradford due to a road closure on my intended route. I didn't even know there was a Bradford clean air zone, or I would have taken measures to avoid it.
I successfully appealed that one by sending footage of our entire route, asking them to point out where the signs were.
I don't know if they've fixed the signage now, or if they are hoping that some people will just pay the fines without bothering to appeal.
And there's a road in Sheffield which is outside the zone, and where there are no signs that you are committed to entering the zone, but where there is no through road out that does not take you through the zone because of the one way system. The road was very quiet at the time, so I was able to reverse all the way out to avoid entering the zone.
Again, this may have been fixed now as this was in the spring and I don't intend on repeating the route.