Oi Birmingham!

[Ticktock]

I think the SCPO say they don't prosecute if you're under 10% + 3mph (Although some renegade forces use 10% + 2).

I know it used to be generally true that the limit was 10% + (I thought 2mph), but there are some forces, or at least some routes, who have a policy to apply the limit strictly. The reasoning being that although your speedo will not be 100% accurate, it will only ever over-estimate your speed, like you said.

[Old Hack]

I think the SCPO say they don't prosecute if you're under 10% + 3mph (Although some renegade forces use 10% + 2).

What I do, with any new car, is use a sat nav (which averages speed over a polling distance), set my cruise to say 50, and see what speed the sat nav returns over a couple of miles. You can work out how accurate your speedo is then, and can set speeds accordingly, without fear of getting the points. I do it at 50 and inch up to when my car is actually doing 56/57 (on mine that's 60/61 on the dash), then at 70 and inch it towards 80 on the sat nav (that's 85 on my speedo).

Smug people going at 45mph, I normally overtake.

[Ticktock]

the thing I hate about these is that say its like 50 - so you do 50 - but there is always someone coming up right behind you doing 51

I quite enjoy setting the cruise control and watching everyone bunch up behind me, smug in the knowledge that I'm doing the limit and there's nothing they can do about it.
I live just off a single carriageway A road - most of it is 50mph limit, but it drops to 40 as it goes through a small village. I imagine I enrage a fair few people when I drop the cruise control down for that stretch, as a lot of people ignore it.

[vetran]

.

I am happy to do your 50 mph - just make it easy for me!

before that you were doing 70 and they were doing 99. Then ahead they were doing 30 because it was bunched up. You ended up with waves and more crashes. Its better not perfect.

[Troll]

the thing I hate about these is that say its like 50 - so you do 50 - but there is always someone coming up right behind you doing 51

so you maybe speed up to 51 but then you worry that there are speed cameras on the over head gantry (they all have signs not all have cameras - barstewards).

I am happy to do your 50 mph - just make it easy for me!

You should realise that the 50 on your speedo is unlikely to be a true 50 and under report,add in the tolerances on the cameras (say 10% before a camera is triggered) and you should set your cruise to at least 55

[original PM]

the thing I hate about these is that say its like 50 - so you do 50 - but there is always someone coming up right behind you doing 51

so you maybe speed up to 51 but then you worry that there are speed cameras on the over head gantry (they all have signs not all have cameras - barstewards).

I am happy to do your 50 mph - just make it easy for me!

[vetran]

M25 would be far worse without. Its still over subscribed but you do crawl round at 30 mph instead of crashes every mile. By dropping speed and keeping it moving you avoid accidents.

[Mich the Tester]

Are you suggesting that the gentry get erections with motorway managers?

[Troll]

Quit closing the M6 late at night when I'm trying to head North

Presume this is to allow the gantry erection for the managed motorway stuff

Managed Motorways good or bad? (should have had a poll!)