Which of the following are key indicators of drug impairment in drivers?

The identification of key indicators of drug impairment in drivers is critical for road safety and law enforcement. Erratic driving behavior, lack of coordination, and altered perception are commonly recognized signs that suggest a driver's ability to operate a vehicle safely is compromised due to drug use.

Erratic driving behavior may manifest as swerving, sudden stops, or inconsistent speeds, which directly points to decreased control over the vehicle. Lack of coordination can be observed through difficulties in steering, maintaining lane positions, or responding to signals and road conditions appropriately. Altered perception might include diminished awareness of surroundings, leading to unsafe decision-making and reactions that do not align with standard driving protocols.

In contrast, steady driving behavior and clear judgment would typically indicate that a driver is functioning normally and is not impaired. Strict adherence to traffic regulations would suggest responsible driving, which is contrary to drug impairment. Similarly, increased speed on the highway might not necessarily indicate drug impairment as it could be a behavior exhibited by sober individuals as well. Therefore, the attributes identified in the correct answer are fundamental indicators that highlight the dangers posed by impaired driving.