From: Derek C on
A lot of roads in my area (West Hertfordshire, Buckinghamshire and
Berkshire) have recently been fitted with electronic speed limit signs
that light up as you drive towards them. However I have noticed that
they still light up even if you approach them at well below the speed
limit, so I guess they don't actually monitor the speed of the
vehicle. Does anyone know if this is a correct assumption?

Derek C
From: McKevvy on
On 16 May, 00:14, Derek C <del.copel...(a)tiscali.co.uk> wrote:
> A lot of roads in my area (West Hertfordshire, Buckinghamshire and
> Berkshire) have recently been fitted with electronic speed limit signs
> that light up as you drive towards them. However I have noticed that
> they still light up even if you approach them at well below the speed
> limit, so I guess they don't actually monitor the speed of the
> vehicle. Does anyone know if this is a correct assumption?
>

Yes it's the same here. The SLOW sign comes on near a junction well
below 60, CROSSROADS one comes on well below 60 too.

McK.
From: Mike Tomlinson on
In article <3dc5bb45-9b50-4eca-9b58-1ee3bb47fe9a(a)q8g2000vbm.googlegroups
..com>, Derek C <del.copeland(a)tiscali.co.uk> writes

>A lot of roads in my area (West Hertfordshire, Buckinghamshire and
>Berkshire) have recently been fitted with electronic speed limit signs
>that light up as you drive towards them. However I have noticed that
>they still light up even if you approach them at well below the speed
>limit

The local council (Wirral) have installed a lot of them. They do seem
to be rather hair-trigger, lighting up at an indicated 30, where I think
a more liberal setting, of say, 33 would have been appropriate.

Apart from being ugly with the solar panel stuck on the top, I have to
say I don't mind them, they are more useful than a copper hiding in a
van with his radar gun. Carrot vs. stick and all that.

--
(\__/)
(='.'=) Bunny's thinking about giving Windows 7
(")_(") a go despite what he's said about it...


From: Nick Finnigan on
Derek C wrote:
> A lot of roads in my area (West Hertfordshire, Buckinghamshire and
> Berkshire) have recently been fitted with electronic speed limit signs
> that light up as you drive towards them.

What sort of signs do you mean? 'SLOW' or Scowly faces that show your
speed or genuine speed limit terminal/repeater signs which only illuminate
at night when there is something driving towards them?
From: Mortimer on
"Derek C" <del.copeland(a)tiscali.co.uk> wrote in message
news:3dc5bb45-9b50-4eca-9b58-1ee3bb47fe9a(a)q8g2000vbm.googlegroups.com...
>A lot of roads in my area (West Hertfordshire, Buckinghamshire and
> Berkshire) have recently been fitted with electronic speed limit signs
> that light up as you drive towards them. However I have noticed that
> they still light up even if you approach them at well below the speed
> limit, so I guess they don't actually monitor the speed of the
> vehicle. Does anyone know if this is a correct assumption?

Most of the ones that I've seen, in Oxfordshire, seem to display the red
circle and the white numbers only if you are exceeding the limit, and they
seem to correlate pretty accurately with my car's speedometer. A few of them
display flashing amber lights at the top and bottom even at a lower speed,
but only display the speed limit sign if you exceed the limit.