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Exact speeds that will trigger cameras

Exact speeds that will trigger cameras

Old Feb 16th 2018, 9:42 pm
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Default Exact speeds that will trigger cameras

https://www.euroweeklynews.com/news/...meras-in-spain

Under 100 KPH the camera will trigger at 7 KPH above posted limit.
100 KPH and over the camera will trigger at 7% above posted limit.
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Old Feb 17th 2018, 7:22 am
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Default Re: Exact speeds that will trigger cameras

Originally Posted by stevesainty View Post
https://www.euroweeklynews.com/news/...meras-in-spain

Under 100 KPH the camera will trigger at 7 KPH above posted limit.
100 KPH and over the camera will trigger at 7% above posted limit.
Sorry Steve but your link did not work for me
This one does:-
https://www.euroweeklynews.com/news/...meras-in-spain
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Old Feb 17th 2018, 7:43 am
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Default Re: Exact speeds that will trigger cameras

That is not strictly correct. 7kph is the allowed margin of error so the radar will trip at 8kph above the speed limit.

Above 100kph it is 7% but according to tables published by Trafico the trigger points above 100 are actually 109, 120 and 131. I dont understand how they arrive at the higher figures but that is what has been published in the past.

Margin of Error | N332 - Driving In Spain

Of course, to those figures should be added the normal speedo error that all cars have which is typically around 5% over the actual speed.

Last edited by Fred James; Feb 17th 2018 at 7:47 am.
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Old Feb 17th 2018, 10:39 am
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Default Re: Exact speeds that will trigger cameras

Originally Posted by Fred James View Post
That is not strictly correct. 7kph is the allowed margin of error so the radar will trip at 8kph above the speed limit.

Above 100kph it is 7% but according to tables published by Trafico the trigger points above 100 are actually 109, 120 and 131. I dont understand how they arrive at the higher figures but that is what has been published in the past.

Margin of Error | N332 - Driving In Spain

Of course, to those figures should be added the normal speedo error that all cars have which is typically around 5% over the actual speed.
Simple solution is to think 10% margin or just don't exceed the limit much safer
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Old Feb 17th 2018, 11:30 am
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Default Re: Exact speeds that will trigger cameras

Originally Posted by Fred James View Post
That is not strictly correct. 7kph is the allowed margin of error so the radar will trip at 8kph above the speed limit. ....
But speed is a continuous variable, so if the trigger is "over 7kph over", shouldn't that be 7.1kph or 7.01 kph, .... which can be continued ad infinitum, and therefore be effectively tripping at (the slightest amount over) 7kph.

Last edited by Pulaski; Feb 17th 2018 at 11:32 am.
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Old Feb 17th 2018, 4:18 pm
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Default Re: Exact speeds that will trigger cameras

They don’t do fractional speeds so that is why they just round up to the nearest whole number.

It is worth noting that radar traps on the motorways are very rare. They do have fixed radars but everyone knows exactly where they are as they are obliged to publish the exact locations.

The majority of accidents are on roads with a 90 or 100 limit or in in urban areas in the 50 limits and that is where the mobile radars tend to be. They even have to publish details of the exact stretches of road where you may expect to find a radar and they have to put up a roadside notice when they deploy one. However, the stretch of road might be 50 km long and the signs are very small!

There are a few tunnels which have an average speed camera. I don’t think these have any margin of error. Also the helicopters are the same as the equipment is very accurate, they are thankfully fairly rare. The latest breed of Trafico motorcycles are all also equipped with static radar equipment.

Last edited by Fred James; Feb 17th 2018 at 4:21 pm.
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Old Feb 17th 2018, 5:12 pm
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Default Re: Exact speeds that will trigger cameras

Originally Posted by Fred James View Post
They don’t do fractional speeds so that is why they just round up to the nearest whole number.

It is worth noting that radar traps on the motorways are very rare. They do have fixed radars but everyone knows exactly where they are as they are obliged to publish the exact locations.

The majority of accidents are on roads with a 90 or 100 limit or in in urban areas in the 50 limits and that is where the mobile radars tend to be. They even have to publish details of the exact stretches of road where you may expect to find a radar and they have to put up a roadside notice when they deploy one. However, the stretch of road might be 50 km long and the signs are very small!

There are a few tunnels which have an average speed camera. I don’t think these have any margin of error. Also the helicopters are the same as the equipment is very accurate, they are thankfully fairly rare. The latest breed of Trafico motorcycles are all also equipped with static radar equipment.
The new Digital Cameras now do Fractions, so 7.1KPH is possible.
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Old Feb 17th 2018, 5:29 pm
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Default Re: Exact speeds that will trigger cameras

Originally Posted by newpower View Post
The new Digital Cameras now do Fractions, so 7.1KPH is possible.
Maybe, but the published info only refers to whole numbers speeds, not fractions.

That was the case on the last two tickets I got (one was on a previously owned car!)
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Old Feb 18th 2018, 8:19 am
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Default Re: Exact speeds that will trigger cameras

Simple solution

Don't speed
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Old Feb 18th 2018, 10:27 am
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Default Re: Exact speeds that will trigger cameras

Also for those of a more global persuasion, and to the glee of brexiteers everywhere, the EU has formulated a cunning plan for parking/speeding fines to follow you home, plus some vast admin fee one imagines, so if you are playing the innocent but fast tourist abroad trick, it will no longer profit you.

They originally wanted to harmonise all numberplates to ease this process but have decided to just share all driver/vehicle info instead so this may also impact on other vehicle related criminality as insurance info etc is shared.
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