What is a common indicator of impaired driving?

Erratic driving behavior is a significant indicator of impaired driving because it is often associated with a driver's inability to maintain proper control of the vehicle. This type of behavior can include sudden lane changes, swerving, inconsistent speed, or an inability to stay in the lane. These actions suggest that the driver may be under the influence of drugs or alcohol, which impair their cognitive functions and motor skills.

Recognizing erratic behavior on the road can help other drivers identify potential hazards and alert authorities to ensure the safety of all road users. High-speed driving, driving without headlights, and failure to use turn signals, while potentially problematic, do not necessarily reflect impairment in the same way that erratic behavior does. Other factors may contribute to those actions, whereas erratic driving is more typically associated with impaired judgment and coordination.