I find it fascinating that every public holiday the road carnage figures are released, and the pundits all tells us that 'Speed Kills" (what a crock!), but regularly the one state (territory?) with zero deaths is the Northern Territory.
Clarkson and his mob on Top Gear have regularly reported on the number of speed cameras in UK and how installing them in new areas, or increasing the numbers in other areas, actually increases the death toll. Probably because drivers spend far more time gazing at their speedometers than at the actual road in front of them.
Lastly, why are the Warrego and Cunningham Highways 100Kph limits when they are simple two lane roads, (and in some places just normal roads) when the new Ipswich Motorway which is 3 or 4 lanes in each direction in places, and is new, smooth tarmac, limited to 80 or 90? (and I don't mean the bits still under construction, I mean the finished bits). There really doesn't seem to be much sense in our road rules, does there?
By the way, I vote to increase the limit to 130 in places where this is safe but limit the maximum speed that young drivers can travel at by the mandatory installation of speed limiters. Max speed to be increased over time as experience increases. I sometime think that the engine management units in some of the newer cars have a higher IQ than some of the boof-heads behind the wheel!
My 5 cents worth
Whizz