It doesn't matter which camera is aiming at which particular spot, all you need to do is dodge the zone. All of the average speed camera's have targeting zones marked on the road as well which are visible.

This does not apply to the temporary ones for roadworks, as they are temporary.

I wont get had because I don't speed through them anyway, I was just offering some information on how they actually work. Which I'm pretty sure was the point of this thread in the title....

 

A work colleague was done for doing 57 in a 50 zone with average speed cameras

They are standard speed cameras which use radar and are independent of each other. If you slow down at the camera you can speed away after it all you like. And of course not all are active anyway.

Once upon a time, but not the modern ones.
They are linked together at a hub and use a version of ANPR to identify vehicles. If they are active then slowing down at them is pointless if your average speed between them is too high. I don't believe most obtain any recorded evidence of the driver, so the registered keeper will get the NIP.

 

I do that, but I also have an active detector for the live ones so probably confuse some drivers by ignoring the ones I know are inactive.

As far as the M25/M42 variable zones go, I have seen cameras flash on a couple of occasions when the variable limit was not in force but somebody on the opposite carriageway passed one at what I would estimate to be 100+mph, so I take care when passing any 'live' camera in these variable zones.

 

I hate the average speed cameras on the M25 north section at the moment. Trucks don't seem to care and still sit on their limiters of 56mph and end up sitting right on the **** of people doing an indicated 50mph. Even if I've gone by 50mph on the SatNav speedo which shows an indicated 54-ish on the proper speedo there are still loads of people flying past.

 

I used to run my Impreza with no front plate and used to blast through the SPECS camera's much to the astonishment of fellow motorists

TX.

 

ok, after posting on this and then travelling up the m62 last night, I got flashed by a camera in the managed motorways section. The signs on the gantrys went from 60 to 50 then to 40. I dropped speed from the nsl to 60 and then 50, but didn't slow down to 40 at the next gantry. Result was a double flash I assume I will get 3 points

 

theres a few miles of specs cameras between Troon and Girvin in Ayrshire, one of the main costal routes for the irish HGV boys that have left the ferry. those lot just fly through them and most have there limiters set at 56mph+. i dont take the risk with SPECS when im driving the wagon unless the wagon in front has its limiter set the same as mine, then i just tuck in nicely behind it. the angle n height the cameras are, vs the height of the back of a trailer n how low my number plate is on the bumper means the cameras cant see my number plate. happy days

 

IIRC a Ł60 fine and no points.

 

The specs on a section of the A12 at the moment in the roadworks are rear facing. Didn't think they worked that way round. Must upset the bikers in the area.