1998 Chevrolet Blazer Owner's Manual - Page 188

Braking Braking action involves perception time and reaction time. First, you have decide to push the brake pedal. to on That's perception time. Then you have to bring up your foot anddo it. That's reaction time. Average reaction time is about 3/4 of a second. But that's only an average. It might be less with one driver and as long as two three secondsor more with or another. Age, physical condition, alertness, coordination and eyesight all play part. So do alcohol, drugs and a frustration. But even in of a second, a vehicle 3/4 moving at 60 mph (100 km/h) travels 66 feet (20 m). of so That could be a lot distance in an emergency, keeping enough space between your vehicle and others is important. Sometimes, as when you're driving snow or ice, it's on easy to ask more of those control systems than the tires And, of course, actual stopping distances vary greatly or and road can provide. That means you can lose control with the surface of the road (whether it's pavement gravel); the conditionof the road (wet, dry, icy); tire of your vehicle. of tread; the condition your brakes; the weight of the vehicle and the amount of brake force applied. 4-6