Question

Rumble strips use vibration and sound to alert drowsy or inattentive drivers that they are

Answer 1

Rumble strips use vibration and sound to alert drowsy or inattentive drivers that they are approaching a stop sign or signal.

Answer 2

The correct answer is approaching a stop sign or signal.
When drivers use rumble strips, they will alert them that their vehicle has left the travel lane or that they are near a stop sign. This way, if the driver is inattentive or drowsy, he or she will be alert to the situation and will be able to pay more attention to driving in order to avoid having an accident.