Recently, a video surfaced showing a truck driver falling asleep at the wheel for a significant time, missing at least three oncoming vehicles before ultimately rolling his vehicle after leaving the road. Despite having technology to reduce fatigue risk, the driver only awakened when it was too late.
This incident is a stark reminder that while technology can help reduce crashes due to fatigue, it can be used in isolation. The CEO of MasterDrive, Eugene Herbert, says “Fatigued driving is one of the most underestimated risks on our roads. The USA’s AAA Foundation estimates 328 000 drowsy driving crashes occur annually in the United States, with approximately 6 400 being fatal.
“It is estimated that driver fatigue contributes to as many as 20% of all road accidents in South Africa and plays a role in 25-30% of fatal crashes. This figure potentially rises to 60% in the long-distance trucking industry. The true scope is likely much larger due to underreporting.”
Even though it did not perform as desired in this instance, modern fatigue detection do have the potential to reduce these crashes. “Image-based systems that use cameras to monitor eye movements and facial expressions have an accuracy rate of between 72.25% and 99.59%.
“The International Journal of Road Safety says systems that combine multiple sensors are successful at achieving accuracy rates exceeding 94%. These systems monitor eye closure duration, head position, lane deviation, and steering patterns. When fatigue is detected, it alerts drivers through alarms, vibrations, or dashboard warnings.”
The truck rollover in the video, however, illustrates that technology alone is not enough. “The system correctly identified the driver’s fatigue, but the driver was too impaired by that point to respond adequately.
“Fatigue impairs judgment comparable to alcohol intoxication. Being awake for 18 hours equals a blood alcohol concentration of 0.05%, while 24 hours awake is comparable to 0.10%—well above legal limits. Fatigued also exposes drivers to high risk of microsleep episodes – momentary unconsciousness behind the wheel.”
Preventing fatigued driving requires multiple strategies along with the use of technology:
- Education and awareness: drivers must recognise fatigue warning signs including frequent yawning, heavy eyelids, lane drifting, and difficulty remembering recent driving.
- Proper sleep: adults need 7-9 hours of quality sleep nightly. Consistent sleep schedules and addressing sleep disorders are crucial.
- Planning: schedule trips during natural alert periods, avoid peak fatigue times (02:00 to 04:00 and 13:00 to 15:00), and include rest stops every two hours.
- Personal responsibility: drivers must recognise their limits and critically assess fitness to drive, considering medications, insomnia, and shift work effects.
- Corporate policies: commercial operations must follow comprehensive fatigue management including driver training, appropriate scheduling, and encouraging fatigue reporting.
This incident should not discredit fatigue detection technology but highlight its role as part of a comprehensive safety strategy. “The sleeping truck driver is a powerful reminder that technology is a tool, not a complete solution. They are early warning devices that complement, not replace, proper fatigue management practices.
When fatigue sets in, no technology can substitute pulling over and resting. “A comprehensive approach is what will play a significant role in reducing future crashes and even tragedies,” says Herbert.