Georgia Commercial Driver License Practice Test

What is the average driver's reaction time?

1. Half a second

2. Between one and two seconds

3. Between three-quarters of a second and one second

4. Over two seconds

The correct answer is: Between three-quarters of a second and one second

The correct answer, which indicates that the average driver's reaction time is between three-quarters of a second and one second, reflects a commonly accepted estimate in road safety and psychology studies. Reaction time is defined as the duration between the moment a driver perceives a stimulus (like a sudden stop in traffic) and the moment they initiate a response (like applying the brakes). Research has shown that under typical conditions, most drivers will respond within this timeframe. This span takes into account various factors, including the driver's alertness, age, and driving experience. It is important for drivers, especially those operating commercial vehicles, to be aware of their reaction times, as even a fraction of a second can make a significant difference in emergency situations. Understanding this range helps in training and preparing drivers to anticipate potential hazards on the road, emphasizing the need for awareness and readiness when driving.