OT Average speed cameras

I doubt that this is true. They use anpr so as long as start and end cameras can see the vehicle, they will be able to measure the average speed. AFAIK there is just nothing you can do to defeat the sheer simplicity of these systems

Go for it. Find some near you and piss through at 90mph changing lanes like crazy. Report back with your findings.

Slightly OT to your OT, here's something you might consider for your garden:

It's not so much the ANPR that is been judged for it's accuracy but the laws that allow the police to prosecute if you change lanes.

Pounder has mixed the two up.

I speed.

You are not trying hard enough.

Mud on the number plates, removing your numberplates, altering your numberplates, using stolen numberplates, just nipping in behind a lorry at the specs camera.

I don't know if it works but when visiting the Norfolk/Suffolk borders I see a lot of 4x4s with really, really, mucky plates. I know that is a separate offence but with reductions in the numbers of traffic police...

That was true, for a very short while, just after they were introduced. The fault was quickly corrected, but it lives on in urban myth.

• driving a foreign registered car

Oddly the EU has been dead slow to address cross-border enforcement/collection of penalties for traffic infringements. Don't know about elsewhere but it's a big problem for TfL and London boroughs. I'm far less worried about the Porsche in my rear view mirror than the white van with non-UK plates.

Mr Pounder Esquire laid this down on his screen :

That used to be true, when they were first introduced, due to a bug supposedly in the software. I would expect that particular bug to have been sorted long ago.

It used to be so. No longer.

Except go very slowly for a while and then whiz off at over the speed limit! :-)

... or ride a motorbike, for some reason all the ones round here have forward facing cameras.

to counter the "Hamilton defence" q.v.

except:

I now live oop north but did live down south (Suffolk) for a number of years. It was autumn and (always) very muddy (rear number plate often obscured). I had driven into London one evening and was trying to find a location inside the City (at the time they had the concrete cordon round the financial district), and was driving round and round one of the squares looking a bit lost. A police vehicle pulled me over, asked what I was doing, I obviously looked plausible/innocent/dumb enough so his mate cleaned my number plate and they sent me on my way :-)

I do wonder if the cameras can see your number if you are close behind and perhaps slightly to the right of a high vehicle.

You see very few vehicles breaking the speed limit.