Fatigue impairs reaction time, judgement and hazard perception, even if you feel “okay”. Many drivers underestimate how tired they are, especially after long days, night shifts or insufficient sleep. Government road-safety campaigns highlight fatigue as a major risk factor, comparable in some ways to alcohol impairment. Micro-sleeps of a few seconds at highway speeds mean travelling over 100 metres unconscious. If you feel drowsy, yawn repeatedly, struggle to focus or miss exits, you are already too tired to drive safely. The only real cure is rest, not coffee, loud music or open windows.
Source: South African Government road-safety campaigns on fatigue.
Frequently Asked Questions
Can I drive if I feel a bit tired?
If you notice drowsiness signs, you are already too tired to drive safely.
Does coffee fix fatigue?
No. It may briefly mask symptoms but does not restore alertness.
What are signs of dangerous fatigue?
Yawning, heavy eyelids, missed exits, daydreaming and difficulty focusing.
How can I prevent fatigue on long trips?
Plan breaks every 2 hours or 200 km, share driving if possible and prioritise sleep.