Business Wire·Sep 8, 2026, 9:13 AM ET

Samsara Compounding Risk Report Finds 10% of Drivers Account for ~50% of Crashes

Samsara released its Compounding Risk Report based on a patent-pending Risk Model analyzing 50 factors to help leaders prioritize coaching.
The top 10% of risk-ranked drivers account for 47% of crashes, while the top 30% account for 76%.
Risk compounds significantly when behaviors combine; drivers with mobile use, distraction, & harsh braking are 5.4x more likely to be in the highest risk tier than the overall population.
The model prioritizes crash-involved drivers approximately three out of four times across both next-day & seven-day evaluation windows.
Aggressive driving, distracted driving, & speeding are identified as the most coachable behavioral contributors to crash risk.
Environmental conditions like night driving or freezing temperatures amplify risk but are not primary coaching targets.
The model ranks drivers by relative risk to serve as a prioritization tool rather than predicting specific individual crash outcomes.
Samsara's AI-powered Coaching Priority feature uses the model to consolidate signals into a single view for targeted manager attention.
The report data covers aggregated fleet information from July 1 through December 15, 2025, across multiple industries & regions.