It ends up being kind of naive that drivers will simply respect a new, lower speed limit with no other changes. If the road could previousy accomodate a certain speed then some “arbitrary” sign won’t change this.
But it can’t accommodate that speed, people get injured and killed. Hence why they roll out the 20 zones. The average UK main road is like 1/3 the width of a North American residential cul-de-sac remember.
It ends up being kind of naive that drivers will simply respect a new, lower speed limit with no other changes. If the road could previousy accomodate a certain speed then some “arbitrary” sign won’t change this.
But it can’t accommodate that speed, people get injured and killed. Hence why they roll out the 20 zones. The average UK main road is like 1/3 the width of a North American residential cul-de-sac remember.
It doesn’t matter if the road is already relatively tight, it’s apparently to easy too speed.
Bumps, barriers, etc.
But you said no budget, so that is tough.