Road safety problem described by the three dimensions cube

The shaded area indicates the number of accidents (A). The total number of deaths or injured persons (I) = Exposure (E) Accident risk (A/E) Injury severity (I/A). 

This formula can be transformed to the fatality rate. An example of this expression is fatalaties exposure, accidents, fatalaties 

In principle there are three main ways for reducing this size of safety problem in response to any change in the three dimensions  

Shifting travel from means of transport with high exposure and risk (e.g. motorcyclists) to means that have a low level such as public transport can influence the level of the safety situation in the country. 

2 Correlation between the quantilled macro factors and road accidents 

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