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Fatigue Driving while fatigued can be extremely dangerous and is often caused by a variety of factors such as:
• lack of sleep or rest
• emotional stress
• boredom
• driving for long periods of time
• physical activity
• illness
• eye strain. Fatigue can also be intensified by factors like overeating, alcohol or drug use, or even a warm and comfortable vehicle. Fatigue can increase the time it takes you to react. It can also impair your judgement and decision-making. This can result in driving errors such as driving off the road, into another lane, or into oncoming traffic. You may not realize that you are in a dangerous situation or be able to react quickly. To reduce the risk of fatigue, do the following:
• Be sure you are well rested before you start your trip.
• Keep your vehicle at a comfortable temperature. Make sure it is well ventilated.
• Keep your eyes moving by scanning the road ahead and behind. Stay alert to your surroundings and check your vehicle’s gauges.
• Use sunglasses on bright days.
• If you are feeling tired, stop for a rest. Walk around your vehicle.
• Do not drive after drinking alcohol or taking drugs.Text extracted from the PDF for reference and may contain layout artefacts. The official PDF is authoritative.
Open official handbook at page 109 ↗Source: Driver's Guide: cars and light trucks, Spring 2026. Contains information licensed under the Open Government Licence – Alberta.