M25 speed cameras - who's been caught?

[1198]

On the thread about least favourite roads someone mentioned the cameras on the m25, and how there always seems to be people zooming through them. I agree, on my rare trips there I've been doing the speed limit and seem to be the slowest on the road. This leaves to wonder if the faster cars are getting ticketed. I can think of a few reasons why people would speed regardless -
1. They don't know the cameras are there. I can't believe that everybody who passed me were unfamiliar with the road?
2. The cameras are set at silly high speeds so the 'normal' motorway speeding doesn't get picked up?
3. People are just dense and don't give a toss. I can't believe this either!
4. Every vehicle isn't registered to the driver!
5. They do work, they're set to 75mph and every driver on the M25 is running around on 11 points!

Has anybody any actual figures that THEY (not the bloke down the pub's third cousins best mate!) have been done for? Are they set at all, or is it all a big conspiracy, they're just ornamental and everybody but me is in on the gag?

[Andy_Pagin]

I don't know about the stats, but a few weeks ago I was sat in a traffic jam on the M25 somewhere between the M1 and South Mimms turn off, and I watched car after car coming the other way get flashed. So it looks like the cameras are actually used.
____________________
They're coming to take me away, ho-ho, hee-hee, ha-haaa, hey-hey,
the men in white coats are coming to take me away.
Yamaha Vity -> YBR125 -> FZS600 Fazer -> FZ1-S Fazer

[Pete.]

Which ones do you mean? The new ones on the Kent and Essex section or the old overheads in Surrey, Berks and Bucks? Someone told me recently that the old gantry overheads haven't been in proper use for quite some time, hough I'm not testing the theory.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Andy_Pagin]

Well I was somewhere between J21 and J23 heading clockwise, so it's that bit, and they were gantry mounted cameras, I only noticed them because of the distinctive speed camera double flash going off.
____________________
They're coming to take me away, ho-ho, hee-hee, ha-haaa, hey-hey,
the men in white coats are coming to take me away.
Yamaha Vity -> YBR125 -> FZS600 Fazer -> FZ1-S Fazer

[Polarbear]

I have been told the ones on variable speed limit sections of the motorway are only activated when the reduced speed limit is in force.

I have no hard evidence of this however.....
____________________
Triumph Trophy Launch Edition

[b422063]

Smells like FOI request material to me.

[G]

[GSTEEL32]

I've always wondered this myself.... I've come to the conclusion that there is so much traffic & congestion on the M25, there's not a huge amount of upside in maintaining and calibrating the camera's .....

We used to live where the M25 hit the M23. That was gridlocked.

Heathrow. Gridlocked.

Dartford Bridge. Gridlocked.

M1/M25 turnoff. Gridlocked.

[Pete.]

[Jim Mc]

I reckon its speed limit plus 10% for prosecution in line with legal overtaking plus a further minimum 5% for camera calibration which means you can do 81mph through NSL cameras and 58mph through average speed check cameras.

Could be wrong though.

[b422063]

[c_dug]

I've been through a decent chunk of them at the wrong side of 90 without a flash before.

It's fair to say I might not be the best person to take speeding advice from though.
____________________
I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.

[Ste]

[chickenstrip]

I'm pretty sure that some of the time, some of them aren't active. But who has some stone cold gen on the matter? I'd never risk it unless I know to a certainty (although I'm also sure I've been through one or two at excessive speed in the past and not heard anything about it).
____________________
Chickenystripgeezer's Biking Life (Latest update 19/10/18) Belgium, France, Italy, Austria tour 2016 Picos de Europa, Pyrenees and French Alps tour 2017 Scotland Trip 1, now with BONUS FEATURE edit, 5/10/19, on page 2 Scotland Trip 2 Luxembourg, Black Forest, Switzerland, Vosges Trip 2017
THERE'S MILLIONS OF CHICKENSTRIPS OUT THERE!

[waffles]

I've seen the camera's go off between J2 and 3 without a reduced speed limit being posted, I have also been flashed by the new cheeky side mounted cameras they put in around J5 or 6ish but apparently they flashed everything that went through when they were first put up. I went through at about 65 and never heard anything.

Meh, dunno!
____________________
Theory test - 19/8/09, CBT - 11/10/09, MOD 1 - 16/8/10, MOD 2 - 27/10/10
Past rides Yamaha XT125X, Triumph TT600, Honda XR250
Current rides Suzuki GSXR 600, Honda MSX125

[rideslikean00...]

[Jim Mc]

I've read of articles whereby tickets at < 10% over the speed limit were challenged and revoked. I had read several years ago that it was not possible for police to prosecute you unless you were 10% over the speed limit.

It seems that there's no reference to the 10% overtaking rule in the highway code, although I believed there was, and although there are similar figures published in the ACPO guidelines these are discretionary only. I'd think however that there's a safe bet that the cameras follow the ACPO rules.

[Ste]

How do you know that it's set at 35mph? How do you know that there's even a camera in the unit?

Purple flash from the camera?

[Ste]

[rideslikean00...]

[Jim Mc]

Here you go chaps, there's a nice table published in 9.6 complete with equipment tolerances. With the caveat being that these guidelines do not replace an officer's discretion. Therefore they can choose to prosecute and or summons you at any speed above the limit although the guidelines state that enforcement by prosecution should not be applied when the speed is lower than those published in the table.

https://www.acpo.police.uk/documents/uniformed/2013/201305-uoba-joining-forces-safer-roads.pdf

The tolerances don't seem to quite make sense, approximately 5% for speeds lower than 66mph, down to 3% for speeds above. You'd expect the higher the speed the higher the tolerance.

[Pete.]

We have a local camera that flashes purple/pink. Truvelo I think it is.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Ste]

Truvelo are front facing and the flash is IR.

[Kickstart]

[b422063]