When both signs are held out at a school patrol crossing, when is it safe to drive on?

The correct answer is that it is safe to drive on only when all signs have been pulled in. This is crucial for maintaining safety around school patrol crossings. The signs are there to alert drivers to the presence of children who may be crossing the road. When the signs are held out, it indicates that pedestrians, particularly children, are still using the crossing.

Waiting for the signs to be pulled in ensures that the property is completely clear and that the school patrol has confirmed it is safe for vehicles to proceed. This process helps to prevent accidents and keeps children safe as they navigate their way across the street. Adhering to this protocol is important for drivers to follow at all times when encountering a school patrol crossing.