Reaction distance is the distance a vehicle travels between the moment a driver recognizes a hazard and the moment they physically react to it by pressing the brake pedal. It is influenced by factors such as the driver’s alertness, visibility, and speed of the vehicle.
Reaction distance can vary depending on the driver’s reaction time, which is typically around 1-2 seconds. At higher speeds, reaction distance increases as the vehicle covers more ground during the driver’s reaction time.
To calculate reaction distance, the formula typically used is:
Reaction Distance = Vehicle Speed (mph) x Reaction Time (seconds)
For example, a vehicle traveling at 60 mph with a reaction time of 1.5 seconds would have a reaction distance of 90 feet. It is important for drivers to maintain a safe following distance to allow for sufficient reaction time in case of sudden hazards on the road.
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