This study has examined the long term effect on accident-types of red light cameras (RLC) at 41 signalised intersections in Melbourne. The analysis was addressed in several ways. The first was a grouped analysis taking the predominant accident-types for all the RLC sites taken together and comparing the changes over time with the changes in the same accident-types in Metro Melbourne, in the rest of the state, and at signalised intersections in Melbourne. The second was to separately examine each accident-type for the 41 sites and look for changes over the whole period. The third was to classify the accidents at individual RLC sites according to whether it involved the approach on which the camera was installed. The fourth was to consider the frequency of each accident-type before the RLC installation and stratify the frequencies to ascertain if there was any difference in effect by initial frequency. The fifth was by considering both the camera approach and initial frequency. The sixth was to compare the changes at the RLC sites with changes in accidents at signalised intersections. The results of this study suggest that the installation of the RLC at these sites did not provide any reduction in accidents, rather there have been increases in rear end and adjacent approaches accidents on a before and after basis and also by comparison with the changes in accidents at intersection signals. (A) The ISBN of the microfiche version is 0-86910-669-4.
Abstract