Everybody wants the gift of more time, but how valuable could just one measly second be to you? When it comes to using your brakes on the highway, it could mean – well, a whole lot more than you might imagine.

Studies have shown that it takes the average driver from one-half to three-quarters of a second to perceive a need to hit the brakes, and another three-quarters of a second to move your foot from the gas to the brake pedal.

Everybody’s reaction times are different, but that’s up to a full one-and-a-half seconds between when you first start to realize you’re in trouble and before you even start to slow down. This is fundamental – there’s no changing human physiology. But let’s look how that affects your ability to stop your car.

The table below shows the distances it takes an average car to come to a stop on dry pavement from different speeds, including the distance traveled for just one second of perception and reaction time.

When it comes to braking, always follow these three key defensive driving principles:

1 Keep your speed down. The slower you drive, the shorter your stopping distance and the less likely you’ll be involved in an vehicle collision.

2 Look far ahead to increase your warning time. By always looking as far down the road as you can, you’ll see emerging hazards and the brake lights of cars ahead of you sooner.

3 Move your foot early. By taking your foot off the gas and pressing on the brake pedal lightly at the first sign that you need to slow down, you get a jump on your reaction time, helps prevents a rear end collision by giving drivers behind you an earlier warning sign.

A classic study conducted in the 1980s found that 90 percent of all accidents could have been avoided if the driver had reacted just one second earlier. Using these tips for safe braking might just give you the one-second advantage you need.

Notice that when you double your speed your total stopping distance triples!