Some principles learnt from evaluations of enforcement and supporting publicity programs in Victoria. Paper presented at the 1995 Road Safety Conference, Institute of Transportation Engineers, Australia, 31 August 1995.

Since random breath testing (RBT) was introduced in Victoria in July 1976, there have been a number of evaluations of different methods, intensities and times of the enforcement operations. The most recent studies have considered the effects of the increased number of "booze buses" introduced progressively in Victoria from September 1989. These operations have been supported by high-profile mass media publicity placed by the Transport Accident Commission from December 1989. Speed cameras were first trailled in Victoria in 1985 and some studies of their localised effects on speeding were carried out. In December 1989, a new program was launched and the number of cameras was progressively increased to 54 during the next year. High-profile publicity to support the cameras was launched in April 1990. As well as evaluating the general effect of the program, studies have examined the mechanisms by which the effects are achieved, as well as localised effects around camera sites. Some general principles which have been learnt from these evaluations of the Victorian enforcement and publicity programs will be outlined. (A)