Building on previous work shich has estimated the contribution of some factors in reducing road trauma in Victoria over the period 1989-93, this project has made use of the statistical analysis methods developed to extend these estimates to include 1994. The major factors considered in the study have stemmed from the results of a number of studies in Victoria which have evaluated the effects of countermeasures and other factors which appear to be responsible for the substantial reduction in road trauma since 1989. The factors for which contributions were estimated were: 1) increased random breath testing, supported by mass media publicity; 2) new speed cameras, supported by mass media publicity; 3) reduced economic activity; 4) reduced alcohol sales; and 5) improvements to the road system through treatment of accident black spots. The percentage change in road trauma levels, as measured by serious casualty crash numbers, due to each factor has been estimated for each year over the period 1990-94.
Abstract