
Originally Posted by
Mick_Marsh
Quite some years ago, back in the days we had speed derestriction signs (that was quite some time ago), the government of the day upped the speed limit on some selected freeways (the Hume and Western spring to mind) to 110km/h. This was initially put in as a trial. What they found is the number of traffic related incidents on those sections of road increased. The government then pulled the pin on the increased speed limits and dropped it back to 100km/h. The amount of incidents dropped.
The proof is in. You drop the speed limit, you drop the amount of accidents.
That goes against all the research from around the world on speed on freeway style roads which show that with certain parameters accident/death rates do not increase with increasing speed. Certainly the death rate per accident rate did increase because the chances of dying in a 200kph crash is greater than it is at 100kph and more than 50kph.
The actually accident rate of high speed roads around the world is far less than slower roads - even the accident rate the NT on the Stuart Highway when there was no speed limit has not decreased when the restriction was removed though there were relatively high speed crashes - despite the wildlife and road conditions. Most deaths were of pedestrians asleep on the road and utes rolling with 10 unrestrained locals in the back.
Yes the speed vs accident rate may be relevant in built up areas but the evidence is that on freeway style roads that there is no correlation of speed limit and accidents.
Garry
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