So, how can we detect driving fatigue?

Driver performance can be assessed by observing how the driver reacts and respond to the driving or task demand. In simple words, this involves driving behaviour, such as variations in keeping to the lane, steering inputs, and speed control. But it not only through these assessments, it also can be observed via physiological and in-cabin measures such as from heart rate variability, eye closure and so on.

How and why driving fatigue occurs? There are various factors lead to this situation.

Driving may seem like a routine task, but it is physically and mentally demanding. When driving, the vehicle often serves as the driver’s office with limited room to move. Drivers spend long periods in a confined space, while trying to maintain their posture consistency and focus, Throughout the driving activity, drivers have direct physical contacts with the road environment and car components. When driving, it is essential for all the necessary parts of the car controls such as steering wheel, pedals and gear to be within easy reach so that drivers can fulfil the driving task. Restricted driver workspaces may hinder drivers from adopting their preferred driving postures. Fatigue may occurred due to prolonged sitting in the constrained space and restricted posture, resulting to insufficient oxygen supply to the body. This condition may lead to discomfort and fatigue. Over time, it will convert into severe pain and possible injury if untreated.