Alcohol, Drugs, Fatigue and Driver Fitness
This domain tests whether you understand why impairment causes so many deaths, and what to do about it in practice. It rewards specific knowledge about how alcohol, medicines and tiredness affect driving - and the honest answer that only time or sleep fixes either.
Alcohol
Alcohol slows reactions, narrows attention, distorts judgement of speed and distance, worsens night vision and increases confidence - the impairment and the false sense of skill arrive together. Only time removes alcohol: coffee, cold air, food and a shower do not sober anyone up, and a hangover still impairs. Driving with alcohol above the legal limit is an offence, and refusing to provide a specimen is itself an offence. Novice and professional drivers face tighter limits in many jurisdictions, so the safe rule for anyone driving is none at all.
Drugs and medicines
Illegal drugs and many prescription medicines - sedatives, antihistamines, strong painkillers, some cough syrups - cause drowsiness and slowed reactions. Read the label, ask the pharmacist, and do not drive on a new medicine until you know how it affects you. Mixing alcohol with medicines multiplies the effect.
Fatigue
Warning signs: heavy eyes, yawning, drifting within the lane, missing signs, clumsy gear changes, and not remembering the last few kilometres. The only cure is rest. Stop somewhere safe, take a short nap of about 15 to 20 minutes, and use a caffeinated drink only as a stopgap to reach a place to sleep. On long trips plan a break at least every two hours, avoid long drives between roughly 2 a.m. and 6 a.m., and do not start a journey already tired.
Fitness to drive
Meet the eyesight standard for your licence and wear prescribed glasses or lenses. Declare conditions that affect driving - epilepsy, diabetes with hypoglycaemia, heart conditions, sleep apnoea, serious mental illness - and any change of medication. Do not drive when feverish, in severe pain or emotionally distressed.
Local context
Long runs on the Trans-Gambia highway, high heat, and fasting periods such as Ramadan all raise fatigue and dehydration risk, so plan breaks and daylight driving.
Worked example
Two hours into a night drive you keep yawning and the car drifts over the edge line. Reasoning: that is fatigue, not boredom. The correct answer is to stop somewhere safe and rest, delaying the journey - not to open a window, turn up the radio, or push on to the next town.
Traps that cost marks
- "I only had two beers."
- Counting drinks instead of the time since the last one.
- Driving on a newly prescribed medicine.
- Believing energy drinks replace sleep.