What three things add up to the total stopping distance of your truck?

What three things add up to the total stopping distance of your truck?

• A. Perception distance, reaction distance, braking distance
• B. Perception distance, braking distance, tire wear
• C. Reaction distance, steering distance, braking distance
• D. Visibility distance, perception distance, reaction distance

Answer: (A)

Think about what happens from the moment you notice a hazard to the moment you stop. The total stopping distance is made up of three parts: perception distance, which is how far you travel from seeing the hazard to deciding to brake; reaction distance, which is how far you travel during the moment it takes your foot to move from the gas pedal to the brake and begin braking; and braking distance, which is how far you travel after you’ve pressed the brakes until the vehicle comes to a stop. Add those three distances together and you get the total stopping distance. Other terms don’t fit as part of the total stopping distance. Tire wear can affect braking effectiveness but isn’t a distance you travel during the stopping process, visibility distance concerns how far you can see rather than how far you travel while stopping, and steering distance isn’t a standard part of the stopping-distance calculation. So the correct breakdown is perception distance, reaction distance, and braking distance.

Think about what happens from the moment you notice a hazard to the moment you stop. The total stopping distance is made up of three parts: perception distance, which is how far you travel from seeing the hazard to deciding to brake; reaction distance, which is how far you travel during the moment it takes your foot to move from the gas pedal to the brake and begin braking; and braking distance, which is how far you travel after you’ve pressed the brakes until the vehicle comes to a stop. Add those three distances together and you get the total stopping distance.

Other terms don’t fit as part of the total stopping distance. Tire wear can affect braking effectiveness but isn’t a distance you travel during the stopping process, visibility distance concerns how far you can see rather than how far you travel while stopping, and steering distance isn’t a standard part of the stopping-distance calculation. So the correct breakdown is perception distance, reaction distance, and braking distance.