When is a speed camera not a speed camera?

[Butcher]

NSL is 30 in a built up area. Check your highway code.

[5lab]

NSL is 30 in a built up area. Check your highway code.

well, sorta..

if there are no speed signs, in an area with traffic lights, it is 30, however, if the nsl sign (white circle, black slash) is displayed, you're in a 60.

[kalniel]

well, sorta..

if there are no speed signs, in an area with traffic lights, it is 30, however, if the nsl sign (white circle, black slash) is displayed, you're in a 60.

White circle and black slash is only displayed at the end of a restricted speed section, not repeatedly (it's saying the previous speed restrictions no longer apply). Theoretically should it be displayed in a built up area with street lights, the speed limit would still be 30 You'd have to have a specific red circle sign with 60 in it to be allowed to do 60 (which I've seen from time to time).

NSL, when there is more than one carriageway not in a built up area, is indeed 70, something which a lot of drivers on the A10 don't realise as they suddenly break to 60 for the spee... safety camera. Very annoying and dangerous.

[5lab]

White circle and black slash is only displayed at the end of a restricted speed section, not repeatedly (it's saying the previous speed restrictions no longer apply).

incorrect. all duel carrigeways, with a 70 limit, with street lights have nsl repeaters. they don't have, for instance, a 70 sign, because a minibus should only be doing 60 and a lorry (iirc) 50.



i would get a better quality pic but they're all blocked at work

[kalniel]

incorrect. all duel carrigeways, with a 70 limit, with street lights have nsl repeaters.

Ah right, because otherwise it's giving conflicting information

[Butcher]

NSL, when there is more than one carriageway not in a built up area, is indeed 70, something which a lot of drivers on the A10 don't realise as they suddenly break to 60 for the spee... safety camera. Very annoying and dangerous.

One on the A562 near widnes that's the same. There's a large yellow backed NSL sign about 800 metres before it and everyone still does 55 past the camera.

[directhex]

Those of you who think it's "hard" to keep a car at 30mph...

everyone who says that drives 2.5l cars which get about 6mpg, so cruise about in fifth gear at 30mph to try & claw back a few quid of fuel. that or they're bad drivers

more helpfully, it depends on a bunch of things. a straight road in an open area with an arbitrary 30 limit is difficult to follow, largely because you feel as if you're barely moving. in a built-up area, keeping to 30 is trivial. and much as it's "bad" for the engine, keeping at higher revs on a lower gear makes you less likely to go over 30 than at the very bottom of a higher gear (since you'd have to change gear to be able to go much above 30 anyway)

[Butcher]

It's not bad for the engine (unless you're redlining it), it just lowers fuel economy.

[schmunk]

NSL is 60 on a single carrigeway or 70 on 2/3/4. I'm fairly certain?

Common misconception - Dual carriageway is independent of number of lanes.

To be dual carriageway, the directions of traffic must be separated by a solid barrier (i.e. Armco). A multi-lane road with no gap between the directions, or just a grass verge is NOT a dual carriageway, and NSL is 60 mph.

(Conversely, the A6144(M) in Cheshire is (was, now they've changed it to an A road) a motorway with a single lane in each direction, but still NSL70)