Anon wrote:

FYI

Don't let the *******s get you.

All

I have just been informed by my dad who works for the Metropolitan Police
Service that as and from the 15th February 08 all the Speed Cameras in the
Variable Speed Limit section of the M25 near Heathrow Airport (JCT 10-15)
are going Digital and the activation limit is being lowered.

They are currently the older film type cameras and Set at 90mph when the
Variable Limit Signs are not in operation.

The new digital cameras are going to be set at the normal 10% of the speed
limit + 2mph (80mph + and your taking a risk basically) when the signs are
not in use i.e. national speed limit. I can't confirm the activation limit
when the signs are set (variable limits showing) but believe it would be
the same 10% + 2mph of the speed shown by the sign at that time.


AIUI the 10% + 2mph formula used to be the official guidance from the
Association of Chief Police Officers (ACPO) to police forces, but I
was under the impression that it was dropped, officially at least,
when Transport 2000 threatened legal action back in 2000 - as detailed
by these two BBC News online stories:

Transport 2000 granted permission for judicial review of ACPO policy:
http://news.bbc.co.uk/1/hi/uk/763331.stm

ACPO climbs down after threat of judicial review:
http://news.bbc.co.uk/1/hi/uk/848464.stm

(The first story speaks of a 5mph 'buffer', but the second correctly
states that the 'buffer' was in fact 10% + 2mph.)


I wouldn't be at all surprised to find that police forces still use
the 10% + 2mph formula when it comes to setting the trigger speeds for
speed cameras.