Following distance — Indiana Permit Test

Following distance on the Indiana permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Stay at least two to three seconds behind the vehicle ahead.

Those seconds give you time to see the car ahead brake and to stop before you reach it.

A good rule for drivers to follow is to stay at least two to three seconds behind the vehicle ahead.

Indiana Driver's Manual, p.41

To check your following distance, watch the vehicle ahead pass a fixed object and count the time until you pass the same object.

Counting seconds works at any speed, which is why it beats guessing a distance in feet.

When following a vehicle, watch for it to pass a fixed object and estimate how much time elapses before you pass the same object.

Indiana Driver's Manual, p.41

At 55 mph a vehicle travels about 80.7 feet every second.

Each second you look away at highway speed, the car covers the length of several cars.

Feet traveled in one second 51.3 80.7 102.7

Indiana Driver's Manual, p.41

A vehicle's ability to stop depends on its weight, its brakes and tires, and the condition, slickness and grade of the pavement.

A heavy car on worn tires going downhill on a wet road needs far more room to stop.

Many factors affect a vehicle’s ability to stop:

Indiana Driver's Manual, p.41

On the test

How far behind the vehicle ahead should you stay?

At least 2 to 3 seconds. Those seconds give you time to see the car ahead brake and to stop before you reach it. Indiana Driver's Manual, p.41: “A good rule for drivers to follow is to stay at least two to three seconds behind the vehicle ahead.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

What it costs

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Where these come from

Every rule here is checked against Indiana Driver's Manual, published by the Indiana Bureau of Motor Vehicles, and against the state code itself. Last checked 2026-10-03.