Can taking a nap in the cab count as a rest period?

There is an old training set for mixer drivers which is disparate among the others by drawing attention to the working hours.

-How many hours can a mixer driver work in a day?

-How long can a mixer driver be at the wheel?

-Should the waiting times be counted as off-working?

-Can it be considered as a rest period while taking a nap in the cab?

Concrete operations can take 2-3 days and none-stop pouring lasts hours. People those who spend a long time in this industry know that the mixer drivers sleep standing these times.

Unlike other truck drivers, mixer drivers work in and outside the vehicle on roads and construction sites in all weather conditions. In this case, how can be applied the fatigue situation at the steering wheel to the mixer drivers.

Typical daily work of mixer drivers:

30 min.    Pretrip inspection and refueling

90 min.    Load at plant x 3 times

120 min.  Drive to job x 3 times

180 min.  At the plant x 3 times

120 min.  Drive to plant x 3 times

30 min.    On-duty lunch

30 min.    Washing and cleaning


600 min. (10 hours) Total working time

240 min. (4 hours) Total driving time.

If we add another tour as overtime which many companies apply and majority of mixer drivers prefer, we will get a 14 hours of total working time and 5.5 hours of driving time.

There is still not contrary to the restriction of not drive more than 4.5 hours in a total of 9 hours in a daily work for all commercial trucks.

However are the mixer drivers not tired and feel fatigue during 14 hours of working every day. How sustainable is such a working style and is this not a big risk for occupational safety?

There are some research in related subject and the findings as follows:

-Results of studies on over-the-road driver fatigue and alertness indicate that hours worked don’t necessarily translate into fatigue.

-Hours of driving (time-on-task) was neither a strong nor consistent predictor of fatigue.

-Time of day when driving took place was more important than the length of the trip.

-Fatigue was most likely to occur between midnight and dawn.

-Studies revealed that drivers could not judge their alertness.

-Researchers measured drivers’ brain-wave activity and eye movements and videotaped their facial expressions to determine when fatigue set in.

-Additionally, truck-mounted equipment recorded lane tracking, steering-wheel movements and vehicle speed data to determine when fatigue caused erratic driving.

-Driver fatigue was not as widespread as some speculated.

These studies indicate large differences in levels of alertness and performance among drivers. Also clearly demonstrates the importance of continues educating all drivers about the fatigue and dangers of drowsy driving and the warning signs of tirediness as well as all all other safety issues.

If you want to look at this topic together and supply an safety training for your mixer drivers, do not hesitate to call in order to come together.



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