In this so far, we have only used two of the available pieces of information about the crashes, namely the severity and when it happened. Let us now look at a couple of the other australia contact data variables that we could break down these fatal/serious crashes by.
In the chart below we are showing the numbers of fatal/serious crashes recorded by police force. Again, this is not a reflection of how dangerous the roads are in those particular areas, as the ones with more crashes are undoubtedly in areas of much higher population and higher numbers of road users. So, again we cannot conclude that those areas are more dangerous, unless we could link it to some measure of road journeys undertaken.
One factor which would seem to be naturally important in the determination of fatal/serious crashes would be the general speed of the vehicles on the road – with a higher likelihood of more severity being caused by vehicles travelling at higher speeds. The chart below shows that actually the highest number of such crashes are overwhelmingly in the 30mph speed limit category.