How does a Gatso work??????

[urbanmaser]

Ok imagine 3 lane road. I am in the middle lane and I get done for 58mph in 50mph zone. The photographic evidence shows my car but also shows a BMW on the outside lane. How can the camera know it was me doing 58 mph. What if it was the BMW????? Is there more than one camera in a Gatso and does it have the technology to know which car is breaking the law when there is more than one car passing through it????????

 

[Andyk]

Thats a good question UM. I know it takes a pic of the whole road obviously but how it can catch 2 at the same time...Not sure. Would imagine the fastest one registers. Is this from experience UM.

 

[conaero]

Gatso, is that the fixed cameras we are talking about?

If so, they take 2 pictures a set time distance apart, then by doing some maths with the lines on the road, you can work out the speed by time over distance.

If say the said BMW was the target camera which triggered it they could then look at any other subsequent cars in the picture and nick them too.

Like a 2 for 1 offer or a Brucy Bonus......arrrhhhhgggg!!!!!

 

[urbanmaser]

My point is what if it was the BMW doing the 58mph and I have been nicked as a result of it . Perhaps it wasn't me doing the 58mph, perhaps it was the BMW and I am an innocent casualty

 

[ENZ525]

Normally there are miltiple cameras for multiple lanes...
I see enough of them going through the roadworks on the M25 every week to/from the airport,
granted, these are average speed ones, but there is definately one camera per lane...
I can't see how one camera could be used for multiple lanes.

 

[maserati]

Enzo,

A single Gatso camera can used for multiple lane enforcement. If more than one vehicle is captured in the images then the operator viewing the film will have to determine which is the offending vehicle. Since two photographs are taken the distance covered between the first and second photograph will be used to make the assessment. Often you will find ruler like graduated markings on the carriageway. This is their purpose. Whilst in many cases the results will be obvious, in others it will be less so. Whatever the merits you can see how a legal challenge could be successful. The 'Specs' average speed cameras often seen protecting roadworks on motorways work differently. One camera per lane is required.

Regards,

Paul

 

[dem maser]

Enzo,

If more than one vehicle is captured in the images then the operator viewing the film will have to determine which is the offending vehicle. Since two photographs are taken the distance covered between the first and second photograph will be used to make the assessment. Often you will find ruler like graduated markings on the carriageway. This is their purpose. Whilst in many cases the results will be obvious, in others it will be less so. Whatever the merits you can see how a legal challenge could be successful. The 'Specs' average speed cameras often seen protecting roadworks on motorways work differently. One camera per lane is required.

Regards,

Paul

there you go um what i thought, you can fight this because theres no proof which car was speeding if theres only 1 camera for 3 lanes

 

[ENZ525]

Enzo,

A single Gatso camera can used for multiple lane enforcement. If more than one vehicle is captured in the images then the operator viewing the film will have to determine which is the offending vehicle. Since two photographs are taken the distance covered between the first and second photograph will be used to make the assessment. Often you will find ruler like graduated markings on the carriageway. This is their purpose. Whilst in many cases the results will be obvious, in others it will be less so. Whatever the merits you can see how a legal challenge could be successful. The 'Specs' average speed cameras often seen protecting roadworks on motorways work differently. One camera per lane is required.

Regards,

Paul

Paul,
I agree there has to be ruler type markings on the road,
otherwise they would have no measure of how far the car has travelled between photo 1 and 2, over the set period of time.
I still cannot see how one camera can successfully cover multiple lanes...
I guess the rule for fixed cameras covering multiple lanes has to be ,
'if you are caught, as for the proof' as a lot of the time there will be other cars involved and how can they
say with 100% accuracy which one was speeding.
Regards,
Enzo.

 

[Andyk]

My point is what if it was the BMW doing the 58mph and I have been nicked as a result of it . Perhaps it wasn't me doing the 58mph, perhaps it was the BMW and I am an innocent casualty

Have you challenged and ask the question....I will ask my Father In Law who works for VOSA...

 

[Emtee]

Really sorry UM, Sorry Gents, If it was a Mark II it can measure speed, distance and lane. The mark II was brought in specifically for accurate duel and multi-lane applications.

On a related topic, has anyone been issued with a ticket from an average speed camera? I have asked many people and know of absolutely no-one. I also know this system actually requires a very great deal of computational power!

 

[Andyk]

Really sorry UM, Sorry Gents, If it was a Mark II it can measure speed, distance and lane. The mark II was brought in specifically for accurate duel and multi-lane applications.

On a related topic, has anyone been issued with a ticket from an average speed camera? I have asked many people and know of absolutely no-one. I also know this system actually requires a very great deal of computational power!

As I understand it most do not work...if any....but please don't use theis if you get booked....Andyk said they don't work.

 

[Emtee]

Hi Andy, I've just checked with Speedysolicitors4U.com (got their details off Dave) and they confirmed that.."AndyK said they don't work" is a valid legal defence. As they're no win no fee, I'm more than happy to trust this legal advice.

 

[lozcb]

Really sorry UM, Sorry Gents, If it was a Mark II it can measure speed, distance and lane. The mark II was brought in specifically for accurate duel and multi-lane applications.

On a related topic, has anyone been issued with a ticket from an average speed camera? I have asked many people and know of absolutely no-one. I also know this system actually requires a very great deal of computational power!

I reguarly go past the 50mph average speed camera's at 60 and to date no tickets , in fact tempting fate ive still got a clean licence , how after 3.5 years of masser ownership i'll never know , but long may it reign , rumour has it that if you keep swapping lanes with average speed camera's they dont yet have the technology to determine cross lane speeds

regards loz

 

[Emtee]

Yep, heard that about lane swapping too. I'm not sure there is either the accuracy or computational power to process that amount of data whether changing lanes or not? Dangerous last words!

 

[safrane]

First gen Specks were unable to deal with lane changes...sadly the new ones do

 

[lozcb]

Can just imagine future Masser drivers ZiggZagging down the M1 and M6


regards Loz

 

[ENZ525]

Really sorry UM, Sorry Gents, If it was a Mark II it can measure speed, distance and lane. The mark II was brought in specifically for accurate duel and multi-lane applications.

On a related topic, has anyone been issued with a ticket from an average speed camera? I have asked many people and know of absolutely no-one. I also know this system actually requires a very great deal of computational power!

Thanks Miles,
I did not know that,
Regards,
Enzo.

 

[maserati]

Overall Motorways are reputed to be the safest roads per mile travelled and when looking at the carraigeway design it's not hard to see why this is so. When roadworks and contra flow sysytems are intoduced into the equasion however the safety record changes dramatically, hence the appearance of SPECS average speed detection equipment covering the affected area. This may not be a popular observation but it is nonetheless a point worth considering.

Regrds,

Paul

 

[urbanmaser]

I wrote asking for their evidence. They replied sending me a few blurred images of what they claim is my car and few calibrated figures of my speed. They also say a disclosure of evidence will be made in court if that is the route I choose to follow.
I then sent a second letter saying that I want all their evidence and more especially proof that the callibration of the camera is up to date. I also said that there is no other situation in law where money is demanded without proof that a crime has been committed and that I was being harassed into paying up now to save myself a bigger fine later. It also begs the question that how am I supposed to defend myself when I cannot see the evidence against me???????

Im still waiting for a reply to that letter.

Did someone mention no win no fee solicitors specialising in this??????

 

[nfm]

I always remember them saying after the OJ trial that in the US you were innocent if proven wealthy (or something like that). On the speeding front the same applies here, just look at Colin Montgomerie getting off per the papers yesterday. It really is unfair.