This report presents the results of an analysis of two different data sets which were provided by VicRoads. The first of these was data collected during an exposure survey conducted by Arup Transportation Planning during 1994 on behalf of VicRoads. The second data set was a file of accident report data, originally collected by the Victoria Police during 1990-94, and subsequently enhanced by VicRoads. Because the analysis made use of data prepared by others, it should be emphasised that the results depend on the validity of the original data collections. The results also depend on a range of assumptions made in the analysis. Subject to the data provided and the assumptions on which the analysis was based, this report shows some remarkable findings regarding casualty accident risks in Victoria during 1994. These new findings suggest that a new pattern of casualty accident risks may have taken shape in Victoria during the 1990s compared with earlier years. If this is the case, the implications for countermeasure development in Victoria are significant. Because of these implications, it is recommended that further research be conducted to confirm the apparent changes. (A)
Abstract