What is a common sign that a driver may be under the influence of alcohol?

Erratic braking or acceleration is a hallmark sign that a driver may be under the influence of alcohol. Alcohol can impair a person's ability to control their vehicle, leading to unpredictable actions such as sudden stops or rapid acceleration, which disrupt the normal flow of traffic and indicate impaired judgment. Drivers under the influence often struggle to maintain a steady speed and exhibit inconsistency in their driving patterns, creating a dangerous situation on the road.

In contrast, consistent speed and lane discipline, as well as cautious and careful driving, are behaviors typically associated with sober, attentive drivers. Frequent use of turn signals also reflects safe driving practices, suggesting that the driver is aware of their surroundings and planning their maneuvers. These behaviors do not indicate impairment; instead, they demonstrate attentiveness and adherence to traffic laws.