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I was told last Sunday that some of the Sat Nav's we can buy record your speed as you go but when switched off memory is erased - so in theory the cops can interrogate your sat nav and do you for speeding - any one else heard this or is someone pulling my chain.
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My sat nav has a recording system. I've no idea what it does though as I've never activated it. It does keep a record of 'max speed', but not where it was done and it can be reset anytime.
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My Garmin (the bike's) actually shows in very big numerals the maximum speed you hit in "dashboard" mode. Bit of bummer if you're stopped.
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I can not see how the Police could use the evidence from a single, un-calibrated driver-owned device to prove speeding by that driver. They wouldn't last 5 sec in court.
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Oh, dear! My sat nav recorded max speed of over 500mph (used it on a plane). Am I going to be banned? :-)
On a serious note, they would have to prove it happened at certain location and in your car (assuming this is not a built-in type). No starter if you ask me
Kostic
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Since lorry drivers are not able to use their tachos as defences against speeding because they're not an approved device for speed enforcement, I doubt the Police could use Sat-Nav's to prove you were speeding. If they could, then it follows that drivers could use Sat-Nav evidence as proof they weren't speeding. I remember a newspaper article where an academic did use some form of GPS evidence to prove he wasn't speeding, but he was using custom kit with high accuracy, not a standard Sat-Nav.
Edited by Ravenger on 24/04/2008 at 16:32
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I had thought it was possible to 'interrogate' some high-end cars already using technology the manufacturers have installed to give themselves information about usage, engine performance etc. Presumably that is more accurate than sat-nav if technology to interpret the 'interrogation' is made available outside the manufacturers. Does the insurance company scheme using GPS and recorders for premium charging also tip them off if you are a habitual speeder?
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I heard a story on the news today about a Range Rover Sport driver being sentenced to 21 months in prison IIRC for doing 72mph in a 30mph limit.He had disabled a toddler for life.He had initially denied speeding but was convicted on the evidence in his cars 'black box' which apparantly records the vehicle speed every 10 seconds.
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They worked out the speed through the airbags. Haven't read the report yet, so not sure how, but it will be interesting.
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Report from the Mail about the Range Rover crash: preview.tinyurl.com/5k3659
My guess is that the accident scene evidence made it clear the RR was well over the limit, and that the post-crash interrogation of the sensors confirmed that. I doubt the sensor info alone would generate enough for a conviction.
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As a former vehicle examiner I am aware that many different vehicles have been recording data on assorted incar electronic systems for years.
Seat belt pre tensioners, airbags electrics, ECU's and don't get me started on BMW keys........they know what you had for lunch.
The data systems like this record is not normally used by the authorities because manufacturers rarely if ever play ball about how to extract it, they will play dumb, deny and in some cases employ there own council to seek injunctions to prevent the data being obtained for many reasons. They don't want the bad press and the loss of potential customers 'I'm not buying a Range Rover if it knows how fast I've been travelling, I'll buy an xxxx instead'.
This incident with the Range Rover has enormous implications for the industry, I'd suggest that in many UK HQ's this is going to be a very serious topic of conversation over the next few days.
Any BMW owners out there.............what did you have for lunch ?
Edited by seataltea on 24/04/2008 at 19:43
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Isn't there an EU directive that all cars built after 2010-ish will have to have sat nav and phone, so that if you crash the car will automatically alert the emergency services? Only a slight tweak needed to give the location, route and speed of the vehicle I'd have thought.
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Ravenger, on the other hand tacho charts can't be used as proof of speeding.
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The EU directive does not include SatNav, or a phone in the true sense, but is named E-Call - info here - www.esafetysupport.org/en/ecall_toolbox/
It will call the 999 operator for you if your airbags deploy in an accident, and give the location of the car, hence the GPS kit. The call is placed over GPRS/GSM.
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