Previous studies have shown that antilock braking systems (ABS) systems reduce insurance claim rates and fatal crash rates for motorcycles. The purpose of this study was to update prior analysis on the relationship between ABS and insurance losses under collision, medical payments, and bodily injury liability coverages and to conduct a similar evaluation of motorcycles equipped with both ABS and combined control braking systems (CCBS). For all of the motorcycles in the study, either ABS or ABS and CCBS were available as optional equipment and the presence of ABS systems could be determined from the VIN. Losses for motorcycles with the systems were compared with losses for those without. The method used in this analysis could not estimate the effect of CCBS alone. For the motorcycles in the study group used to evaluate the effects of ABS alone, ABS was associated with large reductions in claim rates for all three coverage types studied – 20 percent for collision, 28 percent for medical payment, and 22 percent for bodily injury liability. Due to the limited number of motorcycles in ABS/CCBS study population, analysis of these systems was limited to collision coverage. The reduction in collision claim frequency associated with ABS/CCBS (31 percent) was larger than the reduction for ABS alone. (Author/publisher)
Samenvatting