What is the recommended position for a driver to maintain alertness?

Maintaining a sitting position that is straight but relaxed is essential for driver alertness. This posture promotes optimal blood circulation, prevents fatigue, and allows the driver to have a clear line of sight while also keeping the hands in a ready position on the steering wheel. A straight but relaxed position reduces the likelihood of discomfort that can arise from slouching or reclining, both of which can lead to drowsiness or lack of attention.

When a driver leans back with arms crossed, the posture may limit accessibility to the controls, decrease visual clarity, and create an unstable position that could hinder effective reaction times. Slouching for comfort compromises the driver's ability to maintain full control of the vehicle and increases the risk of fatigue, while reclining fully in the driver's seat can severely limit visibility and responsiveness. Maintaining a proactive, alert posture is paramount for safe driving, making the recommended position for a driver to be straight but relaxed to enhance both comfort and vigilance on the road.