[russellw]

I have uploaded the speed zone data charts into Part 1 and made the following comment:

The data shows a significant reduction in accidents across 60 km/h zones, but some of that is offset by the increase from the newly added 50 km/h zone and the expanded 40 km/h ones from 2001 onwards as shown in the chart below. None-the-less, the drop in 60 km/h (and associated) zones is from a peak of 17,700 in 1988 to 7,733 in 2008 - a 56% drop in line with the reduction in incidents naturally.

There have also been some small increases in both 70 and 80 km/h zones but I have no real basis for defining why that is so.

The speed zones from 90 km/h upwards so no real change in either 90 or 110 km/h accidents but a solid reduction in the 100 km/h zone from 3,853 in 1987 to 2,197 in 2008 - about 43%.

Note that this is only the prevailing speed limit where the accident occurred and not the actual speed being travelled.

Cheers
Russ