Gatso flashed even though under the limit

willatwell182 said:
sure your speedo isn't out a little bit, if your detector was showing 27 but speedo was showing exactly 30 then one or both must be out...
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GPS speed is spot on accurate but speedos are aways slightly underread so i believe
 
J273 said:
hmm didnt know that

so if you where doing 35 on a 30 strech and slammed the brakes on and went past at 30 ....it would still get you :confused:



I see this happen all the time cars in front slamming the brakes on at the last minute

i thought after doing a bit of searching it was calibrated from the lines within the road and theres only lines on both sides if a car was to overtake another breaking the limit.
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If you slammed the brakes on and were doing 30 when the camera went off you wouldn't get caught, the sensors would trigger the camera to flash but the photos would show 30, so they would have no evidence to fine you.
 
Gaverick said:
They only work on one side of the road, the camera is triggered by sensors under the road before the camera. The camera doesn't record your speed it just takes two photos then they use the lines to determine your speed.
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Not true, I have set of a Gatso on the other side of the road a couple of times ;) Fantastic thing riding a motorbike and not having a front number plate :)
 
Gaverick, Gatso cameras use radar to detect your speed. Only Truevelo cameras (the blue forward facing infra-red cameras) have sensors under the road which calculates your speed. It is 100% possible to set a Gatso camera off from the other lane trust me.

They have the lines on the road so your speed can be verified by manually calculating how far you travelled in between the times of the flashes (this is why it needs to be more than 1 flash).

Traffic light cameras also use sensors under the road.

Also, speedos on cars, bikes etc are on average anywhere between 0-10% out, VERY few are spot on.

There was an interesting documentary I seen a while ago where they were showing you how inaccurate Gatso cameras are. Some have gone off at stationary traffic and read 60+mph on the readings. Vibrations and shapes of vehicles can cause inaccuracies in the readings from the radar reflections.

In conclusion I wouldn't worry about it. As above, the speed can be manually worked out using the lines on the road and the distance you travelled, which would show you were doing the limit. ;)
 
Gaverick said:
Oh well, was just watching "I didn't know that" and that's what they said.
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They were either talking about the Truvelo cameras or are full of crap.

"The Gatso Radar 24 system can be based on a fixed post or temporary tripod. The system measures vehicles travelling in one or both directions as determined by the operator.

To measure the speed of vehicles, the system uses radar. High-frequency radio waves bounce off vehicles as they pass the camera; the distance covered is detected by the frequency shift from the reflection of the radio wave. If the change is higher than the rate for the speed limit, the camera will take the vehicle's picture.

The camera will take two pictures in quick succession so the distance travelled can be seen on film. This acts as a visual check to the system as the time between photos is set to correspond with the markings on the road, so speeds can be manually checked if necessary."
 
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GraemeUK said:
Their were either talking about the Truvelo cameras or are full of crap.

"The Gatso Radar 24 system can be based on a fixed post or temporary tripod. The system measures vehicles travelling in one or both directions as determined by the operator.

To measure the speed of vehicles, the system uses radar. High-frequency radio waves bounce off vehicles as they pass the camera; the distance covered is detected by the frequency shift from the reflection of the radio wave. If the change is higher than the rate for the speed limit, the camera will take the vehicle's picture.

The camera will take two pictures in quick succession so the distance travelled can be seen on film. This acts as a visual check to the system as the time between photos is set to correspond with the markings on the road, so speeds can be manually checked if necessary."
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Think it must have been a Truvelo then
 
GraemeUK said:
They are always over-rated. 0-10% showing more than your actual.
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yes, and fwiw GPS is not spot on accurate. Only clever ones take elevation into account, so if you are moving along a steep hill the reading will be off.
 
Well it was 2 weeks last thursday since this happened and i haven't received anything as of yet.

As i was coming home from work today though i noticed the camera was having its film changed ( i think).....Which got me thinking,how do these gatso's work?

Would he take the film now back for processing the fines or when the camera takes a pic...does the image go directly to say the office for processing there and then....if you get what i mean?

sorry may be a daft question :confused:

Thanks
 
J273 said:
Well it was 2 weeks last thursday since this happened and i haven't received anything as of yet.

As i was coming home from work today though i noticed the camera was having its film changed ( i think).....Which got me thinking,how do these gatso's work?

Would he take the film now back for processing the fines or when the camera takes a pic...does the image go directly to say the office for processing there and then....if you get what i mean?

sorry may be a daft question :confused:

Thanks
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I told you nothing would happen - more likely pigs will fly than you get done by a Gatso on the other side of the road. It simply can't happen! Only thing it could do is attract the attention of a police car that might then chase you!

Most of the Gatso's are entirely film based I believe.
 
so if this is the first time the camera has had its film changed since when it happend theres a possibility i could get something through?

I heard you needed to have received something within 2 weeks...what do you think guys?

Thanks
 
Why would you get something through, you were not doing over 30 (or 33 ish, whatever triggers it)?
 
Don't worry about it, my artic often sets off gatso's - due to the size of the vehicle I suppose :confused: - nothing has happened - yet!
 
J273 said:
so if this is the first time the camera has had its film changed since when it happend theres a possibility i could get something through?

I heard you needed to have received something within 2 weeks...what do you think guys?

Thanks
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WHOA - you are the most paranoid person in the world ever! Why don't you believe us that you haven't been caught? Just take a chill pill dude, and even if you do get caught it really isn't the end of the world! Even when I got sent to court for doing 100mph on the M6 it didn't even change my RAC insurance premium :p
 
Supposedly the Gatso flashes are discharged regularly, unprovoked, if they have not been activated by a speeding car.
 
laissez-faire said:
WHOA - you are the most paranoid person in the world ever! Why don't you believe us that you haven't been caught? Just take a chill pill dude, and even if you do get caught it really isn't the end of the world! Even when I got sent to court for doing 100mph on the M6 it didn't even change my RAC insurance premium :p
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Ha ha ha.....Sorry guys i do believe you...Just got me worried :p
 
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