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Pagwarrior
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Joined: Oct 13, 2013
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M8TJT
The Other Tired Old Man
Joined: Apr 04, 2006
Posts: 10118
Location: Bexhill, South Sussex, UK
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 Posted: Wed Nov 27, 2013 9:16 am Post subject: Re: Average Speed cameras - 1200 people caught on M54 |
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| Pagwarrior wrote: | | What is the allowed tolerance |
This is a QI type 'Nobody Knows' question. It has been mooted that the recommendation is 10% +2MPH thus making 50MPH 'limit' to be 57MPH. And with speedos over reading, this would probably be an indicated speed of 60MPH. | Quote: | | If you exceed the limit by more than at any one point by more than the tolerance is this a possible offence or is it strictly the average |
The Specs camera zones only calculate average speed by Distance/time, they do not measure instantaneous speed. |
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DennisN
Tired Old Man
Joined: Feb 27, 2006
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Location: Keynsham
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| Posted: Thu Nov 28, 2013 8:40 am Post subject: |
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What's to discuss? Should we discuss how to get the absolute maximum speed out of them or should we discuss how to interpret the word "average"?
The idea of these cameras is to keep ALL drivers UNDER the limit ALL THE WAY through the area. That's a simple enough thing to do - stay under the posted limit all the way through. If we start to try and juggle over and under, we'll come a cropper one day.
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Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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Pagwarrior
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Joined: Oct 13, 2013
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| Posted: Fri Nov 29, 2013 9:44 am Post subject: |
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| DennisN wrote: | | What's to discuss? Should we discuss how to get the absolute maximum speed out of them or should we discuss how to interpret the word "average"?. |
Tired old man . quite apt really |
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DennisN
Tired Old Man
Joined: Feb 27, 2006
Posts: 14901
Location: Keynsham
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| Posted: Fri Nov 29, 2013 12:48 pm Post subject: |
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| Pagwarrior wrote: | | DennisN wrote: | | What's to discuss? Should we discuss how to get the absolute maximum speed out of them or should we discuss how to interpret the word "average"?. |
Tired old man . quite apt really |
Tired old man who's done 20,003 miles since 1st August (this year) and has been driving at more than that sort of mileage for the last 14 years. 
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Dennis
If it tastes good - it's fattening.
Two of them are obesiting!! |
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bmuskett
Lifetime Member
Joined: May 12, 2006
Posts: 710
Location: Stockport, Cheshire
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| Posted: Fri Nov 29, 2013 1:02 pm Post subject: Re: Average Speed cameras - 1200 people caught on M54 |
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| Pagwarrior wrote: | | Tired old man . quite apt really |
Totally uncalled for. What Dennis said is quite true.
| Pagwarrior wrote: | | If you exceed the limit by more than at any one point by more than the tolerance is this a possible offence or is it strictly the average |
It's the speed limit, if you exceed it at any point it's definitely an offence.
The object is NOT to try to make your average speed between the cameras equal to the speed limit by breaking the speed limit to compensate for slower stretches.
As Dennis said, stay under the speed limit all the way through and you won't have a problem with your average speed. |
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