If you look at the average road full of traffic, you’ll see drivers giving each other vastly different amounts of space. Some stay well back from the vehicle in front and others sit right up close.
Which of these options is correct and why does it matter how far back you are?
The correct distance is at least three seconds
Make three seconds your minimum following distance without exception. To get there, just watch until the vehicle in front passes a particular mark on the road, such as a road sign or white line, and then count to three. If you hit that same mark before three seconds is up, then drop back and try again.
You should increase this distance anytime things are less than optimal. So, if you are feeling drowsy or stressed, drop back. If the road is slippery or visibility is low, drop back. If you know your brakes need replacing or adjusting, drop back.
More distance gives you more time to avoid a collision
It’s not always possible to predict what the vehicle in front of you will do, just as it is not always possible for them to predict what will happen in front of them. If they suddenly brake, because they are about to miss their turning, swerve to avoid a pothole or stall, you need to react fast. If you are any closer than three seconds back, you probably won’t have enough time to react and could end up hitting the back of their vehicle.
If someone hits you from behind, they were probably following too close. With appropriate help, you can seek compensation for any injuries and damage you suffer.