๐ 4 min read
What is Drowsy Driving?
Drowsy Driving is a safety event generated when Samsara AI detects signs that a driver may be becoming fatigued or losing concentration whilst the vehicle is in motion.
Fatigue can significantly impair judgement, slow reaction times, reduce awareness, and increase the risk of a serious collision. Even if you do not feel tired, early signs of fatigue can still affect your ability to drive safely.
Drivers should always be well-rested, alert and fit to drive before beginning their route.
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How is it Measured?
Samsara AI continuously analyses the driver-facing camera throughout your journey.
A Drowsy Driving event may be generated if the AI detects behaviours commonly associated with fatigue.
To avoid Drowsy Driving events, you should:
Ensure you are well-rested before starting work.
Take your scheduled breaks throughout the day.
Stay hydrated and eat regularly.
Stop driving immediately if you begin to feel tired.
Inform your manager if you feel unfit to continue driving safely.
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Target
To achieve Fantastic performance, you should aim for:
0 Drowsy Driving Events
Every journey should be completed whilst remaining fully alert and focused.
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How the AI Detects It
Samsara AI analyses footage from the driver-facing camera using artificial intelligence.
The system may identify:
Frequent or prolonged eye closure.
Repeated yawning.
Head nodding or drooping.
Signs of reduced driver alertness.
Facial movements commonly associated with fatigue.
The AI continuously assesses driver alertness and automatically records qualifying safety events.
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What Causes It?
Drowsy Driving events are commonly caused by:
Lack of sleep.
Long working days without adequate rest.
Driving for extended periods without taking breaks.
Fatigue caused by illness or medication.
Poor hydration or nutrition.
Driving during periods when you would normally be asleep.
Fatigue affects every driver differently, but even mild tiredness can have a significant impact on your ability to react to hazards.
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Best Practice
To consistently avoid Drowsy Driving events:
Get sufficient sleep before every shift.
Take all scheduled breaks.
Drink water regularly throughout the day.
Eat balanced meals to maintain energy levels.
Recognise the early signs of fatigue.
If you feel tired, stop in a safe place and inform your manager before continuing.
Never rely on opening a window, turning up the radio or drinking caffeine as a substitute for proper rest.
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Real-World Examples
Examples of Drowsy Driving behaviours include:
Repeated yawning whilst driving.
Frequently rubbing your eyes.
Your head beginning to nod forwards.
Struggling to keep your eyes open.
Missing road signs or junctions due to reduced concentration.
Feeling unable to remember the last few miles of driving.
These are all warning signs that you may no longer be safe to continue driving.
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Can This Be Challenged?
Some safety events may be reviewed if they have been recorded incorrectly.
Examples may include:
A single yawn is incorrectly interpreted as fatigue.
Facial movements are misidentified due to lighting conditions.
Camera visibility is temporarily affected.
The recorded footage does not accurately reflect the event.
If you believe a Drowsy Driving event has been recorded incorrectly, report it to your manager as soon as possible.
Not every event can be overturned, but genuine false positives may be investigated.
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Why It Matters
Driver fatigue is a major contributor to serious road traffic collisions.
Remaining alert helps:
Protect you and other road users.
Improve reaction times.
Reduce the likelihood of collisions.
Protect your Safety Score.
Demonstrate professional driving behaviour.
Create a safer working environment for everyone.
If you begin to feel tired, the safest decision is always to stop driving when it is safe to do so and seek advice before continuing. No delivery is more important than your safety.
