Telematics tells you what your driver did, not why. Are you using it right?
The driver behaviour scores are a real signal. They are also a narrow one, and it's worth being clear about what they can and can't tell you. A score built on speed and G-force events describes how a vehicle moved. It doesn't explain why, or what the driver saw, missed, or decided in the moments before the recorded event.
When researchers analysed telematics data from 4,000 vehicles, behaviours like harsh braking only moderately matched up with actual crash rates, and even that varied by road type. They were careful to call it an association (correlation), not a cause.
That distinction matters, because of what crash investigations consistently reveal. In a major national US study, investigators looked at what went wrong in the seconds before a crash. The driver was the final factor about 94% of the time.
However, most of those failures had nothing to do with how the car was handled.
- Around 41% came down to the driver not seeing a hazard in time: not looking, not scanning, or being distracted.
- Another 33% were judgement calls gone wrong, like misjudging a gap or driving too fast for the conditions.
- Only about 11% were the kind of handling G-force sensors are designed to detect.
So the things a driver behaviour score measures well are the smallest slice of the problem. Most crashes come down to what a driver sees coming, or doesn't, and how they judge it. A driver behaviour score can't see either.
Seeing a situation develop before it becomes an event is a skill in its own right. It's called hazard perception, and it's one of the few driving skills linked to crash risk, as well as factors like distraction, fatigue and speed choice. Sensors detect what's there, hazard perception anticipates what's coming.
This matters the moment you use driver behaviour scores to decide who needs attention. A driver who follows too closely, rarely checks mirrors, and reads the road poorly can still stay within the speed limit and drive smoothly enough to score well. A driver who brakes hard to avoid a hazard someone else created can score badly for doing the right thing.
And when a score flags a real concern, it's still only describing the behaviour. Three drivers with the same harsh braking can be braking for three completely different reasons: one distracted, one stressed, one fatigued. Each needs its own response.
Closing the gap means building a set of skills a sensor can't see:
- the hazard perception to spot a developing situation
- the ability to recognise a risk and know what to do about it
- the self-awareness to know when you're not at your best
- the flexibility to adapt to whatever the road puts in front of you.
Used well, a driver behaviour score is a way to start a conversation. It isn't a verdict on who is safe.
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