Which method is least effective for combating driving tiredness?

Increasing speed on the road is least effective for combating driving tiredness because it does not address the underlying fatigue and can exacerbate the risk of accidents. When a driver is fatigued, their reaction times are slowed, and their ability to concentrate diminishes. Driving faster does not mitigate these effects; in fact, it increases the likelihood of missing critical visual cues or making poor decisions, thus enhancing the danger of the situation.

Effective methods for combating tiredness, such as ventilation, physical exercise, and consuming moderate amounts of caffeine, can provide temporary relief or help to maintain alertness. Ventilation improves air circulation, which can help refresh and stimulate a tired driver, while physical exercise can increase blood flow and elevate energy levels. Drinking caffeinated drinks in moderation can provide a temporary boost in alertness as well, although it’s important to note that excessive caffeine can lead to other issues. None of these methods involve increasing speed, which is not a solution to fatigue and compromises safety on the road.