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 Post subject: DfT on violations
PostPosted: Sat Oct 23, 2004 03:34 
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http://www.dft.gov.uk/stellent/groups/d ... 030562.pdf

Contains:

"Those observed to be conforming consistently to the speed limit differed from those observed to consistently break the speed limit in several ways. They were older, drove lower annual mileages, were more likely to be female and were more likely to report having been accident involved in the previous three years. However, this difference reached statistical significance only in the case of age."

Material starting on Page 65 is worthy of study and consideration. I haven't yet fully evaluated what it means. Unfortunately a few false assumptions have lead the authors to use a sub-optimal analysis method. It remains to be seen if they have obscured the real data or not.

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 Post subject: Re: DfT on violations
PostPosted: Sat Oct 23, 2004 07:16 
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SafeSpeed wrote:
http://www.dft.gov.uk/stellent/groups/dft_rdsafety/documents/page/dft_rdsafety_030562.pdf

Contains:

"Those observed to be conforming consistently to the speed limit differed from those observed to consistently break the speed limit in several ways. They were older, drove lower annual mileages, were more likely to be female and were more likely to report having been accident involved in the previous three years. However, this difference reached statistical significance only in the case of age."

Which tends to confirm the widely-held suspicion that most of those who rarely exceed speed limits do so not as a deliberate choice but because they are nervous and timid drivers with little confidence in their own abilities.

It's also rare indeed to see another driver observing speed limits in the way one would be expected to on an IAM test. Those who rarely exceed 30s will often drive well below that speed even when safe to do a few mph faster, and also make little or no adjustment to their speed when passing into a higher speed limit.

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Any views expressed in this post are personal opinions and may not represent the views of Safe Speed


Last edited by PeterE on Sat Oct 23, 2004 07:26, edited 1 time in total.

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 Post subject: Re: DfT on violations
PostPosted: Sat Oct 23, 2004 07:22 
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PeterE wrote:
SafeSpeed wrote:
http://www.dft.gov.uk/stellent/groups/dft_rdsafety/documents/page/dft_rdsafety_030562.pdf

Contains:

"Those observed to be conforming consistently to the speed limit differed from those observed to consistently break the speed limit in several ways. They were older, drove lower annual mileages, were more likely to be female and were more likely to report having been accident involved in the previous three years. However, this difference reached statistical significance only in the case of age."

Which tends to confirm the widely-held suspicion that most of those who rarely exceed speed limits do so not as a deliberate choice but because they are nervous and timid drivers with little confidence in their own abilities.


Yep. But for that to be observed, the poor hazard perception and excess bravery of young and inexperienced drivers had to be "swamped out" by the effect.

So it's even bigger than it appears.

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