Driver performance scores
Everything you need to know about how scores are calculated and displayed.
How are driver performance scores calculated?
Each driver's score is calculated using three inputs: trip distance, harsh events, and speeding events. The formula measures how many harsh and speeding events occurred relative to the distance driven, then subtracts that ratio from 100.
A higher score means fewer incidents relative to distance driven.
| Input | Weight | Description |
|---|---|---|
| Harsh events | ×100 | Weight applied per event |
| Speeding events | ×150 | Weight applied per event |
Speeding events carry a higher weight than harsh events, reflecting their greater impact on overall safety. The weights ensure that more serious behaviors have a proportionally larger effect on the final score.
How are harsh driving events determined?
Harsh driving events are identified using G-force sensitivity. G-force measures the amount of force exerted in a specific direction. For example, hard braking, sharp cornering, or rapid acceleration all produce distinct G-force readings.
Our devices include built-in G-force sensors that continuously monitor these forces and automatically flag events when readings exceed the defined thresholds.
Why is the driver score different in different places?
Driver profile page: The score shown at the top center of a driver's profile represents their performance over the last 7 days only. It is not an all-time score.
Driver performance report: The score displayed here reflects the date range set using the filters in the top right-hand corner. Adjusting the date range will change the score shown.
Always check which view you're in and what date range is selected before comparing scores between drivers or over time.
What do the different colors mean?
Score colors give you an at-a-glance indication of a driver's performance level.
| Performance level | Score range |
|---|---|
| Good | 71–100 |
| Average | 41–70 |
| Poor | 0–40 |