What are common signs of impaired driving in others?

Swerving and erratic stopping are key indicators of impaired driving. When a driver is under the influence of alcohol or drugs, their ability to control the vehicle is often compromised. This can manifest in unpredictable movements, such as drifting in and out of lanes, sudden stops, or trouble maintaining a steady path. These behaviors can result from a lack of coordination and slowed reaction times, which are typical effects of impairment.

In contrast, while increased speed can sometimes indicate reckless behavior, it is not as definitive of impairment. Consistent lane changes might suggest distracted driving rather than impairment, and driving slowly in traffic might be a result of caution or being overwhelmed, rather than an indication of being under the influence. Thus, erratic driving behavior is the most reliable sign of impairment, making it essential for other drivers to remain vigilant and report such actions to ensure road safety.