What is the stopping distance at 30mph?

The stopping distance at 30 mph is approximately 75 feet. This distance includes the reaction time of the driver as well as the braking distance needed to come to a complete stop.

At this speed, a driver's average reaction time is typically around 1.5 seconds. During this time, the vehicle continues to travel forward. In addition to this, the actual braking distance, which depends on factors like road conditions, vehicle weight, and braking efficiency, contributes to the overall stopping distance.

When traveling at 30 mph, the time it takes to stop is not merely the distance you cover while reacting but must also account for the distance required to decelerate the vehicle to a stop. The calculation integrates these elements into a total stopping distance of about 75 feet, which is based on averages and can vary based on specific circumstances.

This knowledge is crucial when learning to drive, as it emphasizes the importance of maintaining a safe speed and distance relative to other vehicles and obstacles on the road. Understanding such distances helps drivers make better decisions in real-time driving situations.