Re: Good
Guess that depends - most of my local town centre is 20mph. People tend to observe that through the actual high street, but not the road that goes past a primary school and suddenly narrows, and worse than that, last night while I was walking past, three cars in a row ignored the mini roundabout and went effectively the wrong way round it. Unfortunately one of them did that while a car was already on the roundabout...
My thing about speed limiters is that we have one car, which allows you to set the speed limit and see the setting on the dashboard. The cruise control doesn't display the speed it's set to, which is crazy.
However, we also have a motability vehicle, which displays the speed limit on the dashboard and on the satnav - and that is camera based. If you go over the speed limit, it flashes at you for a few seconds, then sits there looking angrily at you. However, it's not unusual for it to misread or completely ignore the road signs. Last week I drove down from Aberdeen, and as soon as we hit the national speed limit on the dual carriageway, and it insisted it was a 30mph road all the way until Laurencekirk, when it went to 50mph (correctly), and then went back to 30mph, until I got home. So about 50 miles of reading the speed wrongly.