Based on the limited data available at this time, there is some evidence that extending the renewal period past four years may have a detrimental impact with respect to accidents and citations. However, these results are preliminary in nature and the long-term results may be very different. Preliminary results from this study are based on a small segment of the driving population over a short period of time. The analysis should be updated as more drivers convert to the eight-year renewal cycle and additional data becomes available to confirm these results and provide a better estimate of the overall impacts. While the number of crashes and citations for drivers with behavior reports are still higher than those of the overall population in most cases, the reductions in incidents after the submission of these reports are striking. Thus these reports appear to be an effective tool for reducing the number of crashes and citations, and they play an important role in the identification of high-risk drivers. (Author/publisher)
Abstract