I saw some in Islington on Balls Pond Road that caught me off guard but didn't get any ticket.
There are also some on Green Lanes between Newington Green and Manor house. Some also on Hornsey Road.
I think your more likely to get done by a camera for stopping in a box junction or driving in a bus lane to be fair. Which I did
Separate note Tower bridge has one apparently.
Exactly, I would imagine everybody does.
There was 30k zones in Dublin city centre (K because we are Europeans) and there was a load of complaints at first, people getting walloped with fines.
People need to chill the fúck out a bit. Slow down a wee bit, getting through red and amber lights and getting to your destination a whole 5 minutes earlier is not important.