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marksfish Pocket GPS Verifier
Joined: Jun 25, 2005 Posts: 802 Location: Sandy, Bedfordshire
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DEANO3528 Lifetime Member
Joined: Jan 22, 2011 Posts: 131
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Posted: Sat Jan 02, 2021 11:26 pm Post subject: |
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The not-so Smart M'way cameras are 'always on', either at the NSL or the VSL to the best of my knowledge. I've certainly seen them flash even when the VSL is not operating. |
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Kremmen Pocket GPS Verifier
Joined: Mar 03, 2006 Posts: 7137 Location: Reading
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Posted: Sun Jan 03, 2021 5:10 am Post subject: |
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I drive the M4 roadworks section, J3 to J10, and back, weekly.
There are a high number of drivers who think the Specs are Gatso and brake for them then zoom off after.
There are also a small number who ignore them and I estimate are still doing ~70.
But, the biggest number are doing about 60.
I drive, or rather cruise control drives at true 50 as indicated on my Garmin and Speedtrap Alert and that reads as 53 on my car speedo.
I've often wondered if they are getting fined or whether they know something I don't. _________________ DashCam:
Viofo A119 V3 |
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DEANO3528 Lifetime Member
Joined: Jan 22, 2011 Posts: 131
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Posted: Sun Jan 03, 2021 11:33 am Post subject: |
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Like you I use cruise at the gps-indicated limit in average zones. I think there is probably the same 10%+2mph allowance of most cam sites but do I really want to prove that theory? |
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exportman Frequent Visitor
Joined: Mar 26, 2006 Posts: 261 Location: United Kingdom
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Posted: Wed Jan 06, 2021 5:39 pm Post subject: |
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A lot of truck UK drivers seem to be stuck on their 56mph limiters. So I suspect the 10%+2 is OK |
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Lariliss Occasional Visitor
Joined: Nov 05, 2021 Posts: 10 Location: UK
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Posted: Tue Nov 09, 2021 2:37 pm Post subject: |
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Calibrated speed camera accuracy is 2% by itself. So, there are at least 3 points where the error might be added: tachometer, camera, added percentage + 2 mph. _________________ Number, Letter, Note: Know, Think, Dream. |
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DennisN Tired Old Man
Joined: Feb 27, 2006 Posts: 14902 Location: Keynsham
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Posted: Tue Nov 09, 2021 3:44 pm Post subject: |
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Contributory factor for mechanical car speedos is wheel status. Wrong inflation changes the profile.
And I wellm remember a case where a clever lad got himself some super new wheels, posh larger ones and soon was fined for speeding (because his speedometer didn't know about the larger wheel being the equivalent of a go-faster stripe).
Lariliss may I suggest you just read ancient topics rather than resurrect them long after the event. Or create new ones. _________________ Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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Kremmen Pocket GPS Verifier
Joined: Mar 03, 2006 Posts: 7137 Location: Reading
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Posted: Tue Nov 09, 2021 3:49 pm Post subject: |
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+1 _________________ DashCam:
Viofo A119 V3 |
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Lariliss Occasional Visitor
Joined: Nov 05, 2021 Posts: 10 Location: UK
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Posted: Thu Nov 11, 2021 7:43 pm Post subject: |
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I've dived into reading further, 'ancient' ones, thank you for amendments.
Please make an excuse for a newcomer. The subject transforms here really.
This subject is polarizing as every new implementation with for sure real life testing and hopefully lessons to learn for safety sake.
Warn and educate mixed with taking fines in real implementation. _________________ Number, Letter, Note: Know, Think, Dream. |
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