Traffic control devices — Tennessee Permit Test

Traffic control devices on the Tennessee permit test — 2 rules, each with the reason behind it and a question on it while it is fresh.

The rules

You must obey directions from a police officer, construction worker or school crossing guard, even when they differ from the traffic lights and signs.

A signal cannot see a crash or a child in the road, but the person directing traffic can. Going on the light can put you into what they are stopping you for.

Drivers must obey directions from these individuals, even if the directions are different than what the traffic lights and signs indicate.

Tennessee Comprehensive Driver License Manual, p.35

Traffic control devices include traffic signals, signs and pavement markings.

Lines painted on the road carry rules just like a sign on a pole. A driver who reads only the poles misses where passing ends.

Traffic control devices include traffic signals, signs and pavement markings.

Tennessee Comprehensive Driver License Manual, p.35

On the test

A crossing guard waves you to stop while your light is green. What must you do?

Stop, because the guard's direction comes first. A signal cannot see a crash or a child in the road, but the person directing traffic can. Going on the light can put you into what they are stopping you for. Tennessee Comprehensive Driver License Manual, p.35: “Drivers must obey directions from these individuals, even if the directions are different than what the traffic lights and signs indicate.”

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 Tennessee Comprehensive Driver License Manual, published by the Tennessee Department of Safety and Homeland Security, and against the state code itself. Last checked 2026-10-03.