Chart explaining stopping distances for various speeds and a mathematical rule illustrating multiplications and their results.

What is the 2 second rule?

Illustration demonstrating the two-second rule for safe following distance. A road with a blue car and a yellow car, a road sign showing a 30 mph speed limit, and a red arrow indicating two seconds between the cars, labeled with the text '2 seconds.' The background has green grass and a gray sidewalk.

Only a fool breaks the two second rule.

Only a fool breaks the two second rule.

The two second rule is only for good driving conditions. For example, dry roads and good visibility. If the road is wet then the two second rule gets doubled, so say the rule twice to yourself.