two
3 seconds
8 seconds
4
a driver behind your vehicle is trying to pass you
What is following distance? Following distance is the space between your vehicle and the vehicle in front of you while driving. It's important for all drivers to maintain a safe following distance, so that they have time to safely stop in case the vehicle in front of them brakes abruptly.
4 sec
3 seconds
In any driving location, it is generally agreed to be safe if you position yourself 3 seconds or more behind the vehicle in front of you.
3 seconds
3 Seconds Two seconds
At minimum 3 seconds. If the road conditions are adverse, it should be 5 seconds or more.
You should probably not be following one in the first place.