Re: Another Parking Notice with a GPS Recorded Moble Camera



On Thu, 5 Jan 2006 19:53:39 +0000 (UTC), "Graham Brooker" <graham.brooker@xxxxxxxxxxxxxxxx> wrote:

>Sorry to bring up my parking problems again, but we are now getting
>backdated notices in the post prior to my first one issued by the parking
>attendant. On each letter I received a small photo of a close-up of only
>the van number
>plate without any local features or its wheels identifying where it was
>parked. The
>parking offence refers to parked with one or more wheels on the footway (I
>do not want to bring that question up again as it was on our drive
>crossover). LBWF are using a mobile traffic camera unit.
>
>The only identification of the location are GPS coordinates to 4 decimal
>places of minutes of arc on the photo. If accurate it can pinpoint an place
>to within 6
>inches (using recognised nautical mile conversions), but we understand that
>GPS data is inaccurate in the UK and can be anything from 5m to 15m out at
>any time due to drifts in the satellite orbits and receiver electronics.
>I think only the US military can use GPS accurately. I am sure LBWF
> do not calibrate their GPS receiver.
>
>We have stopped parking there but can still receive several notices from
>before we knew about it.

Unless they can prove the van moved between photos you could maybe argue that it is only a single
offence.

>
>I do not propose to confess where I parked but I have asked the council to
>prove that they calibrated their GPS equipment to a known local point at the
>time the photo was taken I pointed out that the GPS data only shows where
>the camera was and NOT where my van was. I have asked them to prove
>exactly where my van was. I hope this is the right sort of defence. The
>location is described only by the name of the road that is 2 miles long.
>Incidentally the 2 notices I received show a difference in GPS coordinates
>of about 10ft for the same location on consecutive days.
>
>I thought they would have given me the best photo they have so I asked for
>proof that the offence took place.
>
>Does anyone have any experience of these mobile cameras and how they prove
>parking offences when you cannot see any details in the photo.

If the photo does not show the whole vehicle, it's hard to see how it constitutes proof.
You might also like to explore what safeguards are in place to provide a provable chain of evidence
- some numbers superimposed on a digital image prove nothing. (maybe get a photo of the Town Hall
and superimpose numbers in the same style 'proving' that it is in the middle of the sea...)

As this is all controlled by software (GPS, camera, storage & transmission systems), there ought to
be a fully auditable record of all software versions, approvals etc. in all systems that the image
has passed through. I somewhat doubt that this is in place.

Also, I believe pavement parking is legal for loading - have they observed it for long enough to
establish that you weren't loading..?

Good luck - we must all fight against this cynical revenue raising by greedy local authorities.
.



Relevant Pages

  • Another Parking Notice with a GPS Recorded Moble Camera
    ... Sorry to bring up my parking problems again, ... On each letter I received a small photo of a close-up of only ... GPS data is inaccurate in the UK and can be anything from 5m to 15m out at ... any time due to drifts in the satellite orbits and receiver electronics. ...
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