Question

Difficulty: HardFatigue and Tiredness

While completing an essential late-night cross-country journey, a driver experiences involuntary heavy blinking and drifting within their lane. According to official road safety recommendations, in what sequence should the driver carry out these actions to safely manage this fatigue episode?

  1. 1Locate the nearest official service area or motorway exit to leave the main carriageway.
  2. 2Park the vehicle in a designated parking bay away from moving traffic.
  3. 3Consume two cups of caffeinated coffee or equivalent caffeinated drinks.
  4. 4Take a short sleep or nap lasting approximately 15 minutes.
  5. 5Evaluate personal alertness and physical condition before deciding whether to resume driving.

Answer

Locate the nearest official service area or motorway exit -> Park the vehicle in a designated parking bay -> Consume two cups of caffeinated coffee -> Take a short nap of around 15 minutes -> Evaluate personal alertness before resuming driving
According to Highway Code Rule 91 and road safety research, the most effective procedure for tackling driver sleepiness is to leave the road at a safe exit, park properly, consume two caffeinated drinks, take a 15-minute nap while the caffeine begins to absorb, and assess alertness before resuming driving.

Step-by-Step Solution

1
Find an official exit or motorway service area
Driver avoids dangerous stops on the hard shoulder or live lanes
Highway Code Rule 91 specifies that drivers feeling sleepy must leave the motorway and find a safe, designated resting area.
2
Park securely in an authorized bay
The vehicle is safely positioned off the highway
Resting requires complete vehicle security in an area clear of live traffic.
3
Drink two cups of caffeinated coffee or equivalent
Caffeine enters the digestive system to start absorption
Caffeine takes approximately 15 to 20 minutes to cross the blood-brain barrier and enhance alertness.
4
Take a short 15-minute nap
Short sleep reduces sleep pressure while caffeine takes effect
Combining a brief nap with preceding caffeine intake provides the scientifically proven 'caffeine nap' benefit recommended by road safety authorities.
5
Perform a self-check for alertness
Driver verifies they are fit to drive before joining traffic
If fatigue persists after a nap, driving must not be resumed until adequate sleep is achieved.

Key Concept

Highway Code protocol and physiological countermeasures for managing driver fatigue and drowsiness
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