The speed limits are fine just the use of them needs to be changed I cycled past a village school the other day and it was in a national speed limit area, crazy.
Also I am firmly against a black box, I drive carefully and sensibly but everyone I guarantee has made an honest mistake before, such as missing that 40 sign and you carry on doing 50 for an extra 500yards before you see the next 40 sign. etc A black box would have you booked for that, but it did no-one no harm and next time you'll probably notice it. All the bad/illegal drivers would just unplug them as well so all it would do is penalise normal motorists.
Just like the CCTV operators have some discretion, the black box would not automatically mean sanctions for every minor indiscretion.
Besides, your GPS gear can currently warn you of when you are approaching a limit. What real excuse would there be to enter a 30 at 40 when you have a heads up from your car?
I don't agree current limits are fine.
20 would make much more sense for the vast majority of built up areas, and we all know that would mean an effective 25.
The doctor diagnosed me with hereditary diarrhoea. I can't understand, I wear a kilt.