What are common signs of an impaired driver?

The selection highlighting erratic speed, swerving, or harsh braking as common signs of an impaired driver is valid and reflects typical behaviors seen in individuals who are not fully in control of their vehicles. Impairment can affect a driver's coordination, reaction time, and decision-making abilities, leading to noticeable irregularities in how they operate their vehicle. For instance, a driver may struggle to maintain a steady speed, frequently accelerate or brake unexpectedly, or weave in and out of lanes, which showcases a lack of control.

In contrast, consistent use of turn signals and maintaining a safe following distance are indicators of a responsible and attentive driver. Similarly, driving at a constant speed, while it may not immediately suggest impairment, does not demonstrate any signs of erratic behavior that could be indicative of a driver experiencing difficulties. Therefore, recognizing erratic behavior and sudden changes in driving patterns is crucial for identifying potentially impaired drivers on the road.