In some areas in the United States, these rumble strips are located along the side of county, state, and interstate highways. They are oriented so that a driver wandering off the lane of traffic would come in contact with these strips and be forewarned that they are about to leave the roadway. The idea was first started in Atlanta,[citation needed] as a measure to help truck drivers on the bypass[clarification needed] after a number of accidents in the late 1980s involved drivers who became distracted or fell asleep and left the road.