
Originally Posted by
Lotz-A-Landies
Hi John
Except that this thread is about the road toll, i.e. fatalities. Irrespective of the incidence of crashes and the reasons that vehicles crash, the reduction of fatality statistics are due in the main to divided roads AND improved occupant protection.
If we were talking about crash statistics then everything you say is valid.
My point is that when talking about fatalities, this is a function of both the probability of an accident and the probability of survival when it happens. Both factors are at work, but I have not seen any attempt to separate them when talking about overall fatality rates. Another point worth thinking about is that rates are now so low (at least per kilometre) and the curve so flat, that statistical noise is likely to mean trends are difficult to see, especially when, for example, comparing this Christmas with last Christmas, but even when talking about the whole year, especially for the smaller states and territories.
Diana
BTW: I don't use the terminology "accidents" very few vehicle incidents are unpreventable i.e. without human factors. Almost universally at least one human did some action where the incident was predictable in the prevaling conditions. The term "crash" better reflects these incidents without assuming it was unpreventable (an accident).
We've been over this one before. The term "accident" in normal English does not (just) mean "unpredictable" - its more normal meaning is to mean "unintended", and this sense of the word is quite applicable to the vast majority of road "accidents", except perhaps for the unknown number of "suicide by motor vehicle", which may not actually be that small a number, since suicide is a more frequent cause of death than road trauma.
Attempts to redefine the meaning of words are rarely successful, perhaps in particular where the attempt is to restrict the meaning. On the other hand, meanings change over time without anyone trying!
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
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