Driver fatigue on a long trip: what to do?

Driver fatigue is a major cause of road crashes. It slows reaction times, impairs judgment, and can lead to microsleeps, brief moments of sleep you may not even notice. On a long trip, it is essential to recognize the signs of fatigue and act quickly to stay safe.

What is happening

Fatigue is more than feeling a bit tired. It is a state of reduced alertness that affects your ability to drive safely. Common signs include heavy eyelids, frequent yawning, difficulty concentrating, drifting out of your lane, and trouble remembering the last few miles. If you experience any of these, you are already at risk.

What to do first

1. Pull over safely: As soon as you notice signs of fatigue, find a safe place to stop, such as a rest area, service station, or parking lot. Do not wait for a "better spot."
2. Take a short nap: A 15-20 minute nap can significantly improve alertness. Set an alarm and sleep in your parked car with doors locked.
3. Switch drivers: If another licensed driver is with you, swap seats and let them take over.
4. Drink caffeine (if needed): A cup of coffee or tea can help temporarily, but it is not a substitute for sleep. Caffeine takes about 30 minutes to kick in, so drink it before your nap for a combined effect.
5. Resume only when alert: Do not start driving again until you feel genuinely refreshed. If you still feel tired, do not drive.

What NOT to do

• Do not rely on loud music, open windows, or cold air: These may give a brief boost but do not address the underlying fatigue.
• Do not ignore the signs: Pushing through fatigue increases the risk of a crash.
• Do not drive after drinking alcohol or taking sedating medications: These worsen fatigue and impair driving.
• Do not stop on the hard shoulder of a highway unless it is an emergency: It is dangerous. Use designated rest areas instead.

When to stop for good

If you have tried a nap and caffeine but still feel drowsy, or if you are yawning repeatedly, blinking frequently, or having trouble keeping your eyes open, it is time to stop driving for the day. Find a safe place to rest or stay overnight. Do not attempt to continue the journey.

How to prevent driver fatigue

• Plan ahead: Schedule regular breaks every 2 hours or 100 miles (160 km).
• Get enough sleep: Aim for 7-9 hours of sleep before a long trip.
• Avoid driving during peak sleepiness times: Typically late at night to early morning (2-6 AM) and mid-afternoon (2-4 PM).
• Share the driving: If possible, rotate drivers every few hours.
• Stay hydrated and eat light meals: Heavy meals can make you drowsy.

Remember, fatigue is a serious risk. If you feel tired, stop and rest. It is better to arrive late than not at all.