As a consistent and objective measure of driver risk, the FICO® Safe Driving score is comprised of variables that evaluate driving behavior across 5 key categories: Acceleration, Braking, Cornering, Distractions, and Speeding. The importance of these categories is not equal. While we cannot disclose specific algorithms. Based on empirical analyses we have conducted on millions of trips, we have found that Acceleration and Braking generally have the largest impact, followed closely by other negative behaviors such as Speeding and Distractions.