Question 6919

What is the function of the rumble strips located on the right edge of the roadway, normally placed on the shoulder or coinciding with the pavement marking that delimits the right lane?

1. 1
   To mark the edge of the roadway, especially in low-visibility conditions.
2. 2
   To alert the driver if the vehicle strays from the path of its lane.
3. 3
   To indicate the existence of a special lane or one reserved for certain vehicles.