Three factors determine the distance that it takes to stop your vehicle: perception time, reaction distance and braking distance.
Perception time: The time it takes you to recognize a hazard.
Reaction distance: The distance your vehicle travels between the time you recognize a problem and the time you apply the brakes.
Braking distance: The distance your car travels after you apply the brakes.
Perception time, reaction distance and braking distance are affected by weather, visibility, and your mental and physical condition.
Braking distance is also affected by how fast your vehicle is traveling, the condition of your brakes and tires, and the pavement condition. For example, wet pavement can double your braking distance.
Antilock Brakes: If your vehicle has antilock brakes, be sure that you understand how they work. Check your vehicle owner’s manual and practice braking before you go out on the road. Remember, never pump antilock brakes.