Reaktioetäisyys
Reaktioetäisyys refers to the distance a vehicle travels from the moment a driver perceives a hazard to the moment they apply the brakes. It is a crucial component in calculating total stopping distance, which also includes the braking distance. Several factors influence reaktioetäisyys, including the driver's alertness, reaction time, and the complexity of the situation. Fatigue, distraction, alcohol, and certain medications can significantly increase a driver's reaktioetäisyys. The average reaction time for a human is generally considered to be around 0.7 to 1.5 seconds, though this can vary widely. For example, at a speed of 50 kilometers per hour, an average reaktioetäisyys of 1 second would mean traveling approximately 13.9 meters before braking begins. Understanding reaktioetäisyys is vital for safe driving and is often a factor in driver education and traffic safety campaigns. Drivers are encouraged to maintain a safe following distance to allow sufficient time to react to unexpected events. Reducing distractions and ensuring one is well-rested can help minimize reaktioetäisyys and improve overall road safety.