Like I said if at any one time (say) 10% of drivers drive red cars, you would expect 10% of accidents to involve red cars. If there was significantly less than 10% involving red cars you would conclude that red cars were safer, for some reason. If more than 10% involved red cars you would conclude that red cars were less safe for some reason. ie you would say there was a causal link between the colour red and accident rates.
Exactly the same argument applies to speeding. If 10% of drivers are speeding at a given instant were speeding you would expect speeding drivers to be involved in accidents if speeding had NO effect on safety.
Now we come to the figures only 5% of drivers involved in accidents are judged to be speeding.
Do you really believe that only 5% of drivers are speeding at a given time? No you don't - and neither does itpro. You are forced to the conclusion that speeding drivers are LESS likely to have an accident than law abiding ones.
Even when we come to fatal accidents. Do you actually think that only 13% of drivers are actually speeding at any one instant - itpro certainly doesn't, I'm not sure one way or the other.
But you are forced the conclusion that the figures strongly suggests that speeding motorists are at least as safe as those that obey the limit.
Perverse though you may find that, it's what the figures clearly show.
Which is why itpro, who claims to have some statistical knowledge won't answer the question.
If the government figures are right itpro's and your case is completely destroyed - and itpro knows it.
And before you suggest these are just one set of figures these figures have been produced annually, are part of (by far) the most comprehensive road safety report the DFT produces and have consistently produced similar figures.
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