However, if we only include fatal crashes though, the higher speed limit categories have increased in proportion to the lower ones – and indeed we will see in the next section that speed australia contact data limit is the most important factor in differentiating fatal crashes from non-fatal ones.
Fatal accidents by speed limit
Having looked at different ways of exploring the characteristics of fatal/serious crashes, this naturally leads us to think about the relative importance of these factors to each other in determining whether a crash was likely to be fatal or not.
A typical way of trying to identify the key factors which differentiate fatal crashes from non-fatal crashes is by using the Apteco FastStats profile tool. Our selection of interest is all fatal crashes, and our selection to compare this to would be all crashes. We could then add in all the possible attributes that are included in the data into the profile and see which are identified as the most predictive factors.
The main difficulty with this is that we only have a subset of the slight crashes so any bias in the collection of data on those crashes will then show up in the overall analysis results (Note 3). Here are some of the factors which appear to be predicative of whether a crash will be fatal.