Okay I'm stating the obvious, one of the main reasons changes like this cause and create issues is due to the sheer amount of drivers on the road that are poor drivers, whether that means lack of spatial awareness and/or impatient and/or being quite happy to break the law.
Before you ask in a sarcastic manner, no, I'm not a perfect driver nor would I profess to be. However what I can say with absolute certainty is the amount of impatient on the roads is increasing. Drivers darting around in built up areas, glaring at you and/or tailgating you if you dare to drive near never mind on the speed limit. Slow down to turn into another street?!? How dare you!!! Drive at 30 in a 30 zone?!? How dare you!!! Pull out at a roundabout that I'm driving around like a rally driver thus impeding my progress?!? How dare you!!!
I have absolutely no issue adhering to rule changes like this, what I have issue with is my stress levels being challenged by the tw*ts driving behind me that do not have patience in their vocabulary. The ones that really crack me up are those that give you 'the stare' because you slowed down to enter another street. Do they expect you to defy the laws of physics and take the 90 degree turn at 30-40 mph?
I've said it before, if everyone just slowed down a bit, much of the issues raised in this thread simply wouldn't arise.
Many are also complete hypocrites when it comes to driving. How many do 30+ in a 20 zone? Try driving at 20 in a 20 zone, you're almost guaranteed to have a tailback behind you. However, I wonder how those that feel it's acceptable to do 30 in a 20 would feel if one of their nearest/dearest was killed by someone driving at excessive speed in a 20 zone? Would they say 'a well, I do it, so I have no anger towards the driver and hope they face no consequences.'
You are a great driver just like me, thanks