Not including thinking and reaction distance, what is the stopping distance requirement at 20 miles per hour?

The stopping distance at a speed of 20 miles per hour accounts for the distance covered while the vehicle is coming to a complete stop after the brakes have been applied. At this speed, factors such as the vehicle's weight, the road surface, and tire conditions will influence how quickly a vehicle can stop.

For vehicles traveling at 20 mph, the general rule of thumb is that the stopping distance is approximately 25 feet under ideal conditions. This distance is determined by considering the vehicle's braking ability and the appropriate friction between the tires and the road.

It's important to note that thinking and reaction time, which includes the time it takes for a driver to perceive a hazard and physically apply the brakes, is not included in this calculation, leading to the conclusion of a 25-foot requirement exclusively for actual stopping distance. Hence, understanding the dynamics of stopping distances at various speeds is crucial for safe driving and is an important concept in defensive driving practices.