Which condition, according to Alberta Hours of Service legislation, would prevent a driver from driving?

Which condition, according to Alberta Hours of Service legislation, would prevent a driver from driving?

• A. If road conditions are dangerous
• B. If he/she has already been on-duty for 15 hours
• C. If he/she has had more than 3 work shifts last week
• D. If he/she has already driven 10 hours during last shift

Answer: (B)

In Alberta Hours of Service rules, fatigue protection hinges on the total time you’re on the job. This clock runs for all on-duty activities, not just when you’re behind the wheel—loading, unloading, waiting, inspections, and similar tasks all count. When that on-duty clock reaches 15 hours in the current period, you’re not allowed to drive again until you’ve taken a required off-duty/rest period to reset the cycle. That’s why stopping after 15 hours on duty is the condition that prevents driving. The other scenarios don’t constitute an automatic prohibition in the same way. Dangerous road conditions require safe driving decisions and may justify stopping or proceeding with extra caution, but they aren’t an explicit rule that blocks driving. Having already driven a certain amount in the last shift or the number of shifts in a week depends on other limits, but does not in itself create an immediate drive prohibition the way hitting the 15-hour on-duty limit does.

In Alberta Hours of Service rules, fatigue protection hinges on the total time you’re on the job. This clock runs for all on-duty activities, not just when you’re behind the wheel—loading, unloading, waiting, inspections, and similar tasks all count. When that on-duty clock reaches 15 hours in the current period, you’re not allowed to drive again until you’ve taken a required off-duty/rest period to reset the cycle. That’s why stopping after 15 hours on duty is the condition that prevents driving.

The other scenarios don’t constitute an automatic prohibition in the same way. Dangerous road conditions require safe driving decisions and may justify stopping or proceeding with extra caution, but they aren’t an explicit rule that blocks driving. Having already driven a certain amount in the last shift or the number of shifts in a week depends on other limits, but does not in itself create an immediate drive prohibition the way hitting the 15-hour on-duty limit does.