What is a common warning sign of an intoxicated driver?

Weaving in and out of lanes is a strong indicator of an intoxicated driver. This behavior often suggests a lack of coordination and impaired judgment, common effects of alcohol and drugs on the body. Intoxicated individuals may have difficulty maintaining a straight path, causing them to swerve or drift between lanes. In contrast, consistent speed and proper lane positioning generally indicate a driver who is in control of their vehicle. While driving below the speed limit can sometimes indicate caution, it can also result from distractions or a lack of knowledge about speed limits, rather than intoxication. Signal use at every turn is a sign of a conscientious driver, and it does not imply impairment. Therefore, recognizing weaving as a warning signal is crucial for identifying potential drunk driving situations.