Red and green lights — Connecticut Permit Test
Red and green lights on the Connecticut permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
A red traffic light means stop, and you must wait until it turns green and there is no crossing traffic before moving ahead.
The green is not the whole permission. Crossing traffic finishing its move is still crossing traffic.
You must wait until the traffic light turns green and there is no crossing traffic before you may move ahead.
If you are turning right on red you may turn after coming to a full stop, checking that there is no oncoming traffic and that no sign prohibits the turn.
The full stop is where the looking happens, and the sign is the only thing that can take the turn away.
If you are turning right on red, you may turn after coming to a full stop and checking to make sure that there is no oncoming traffic and no sign prohibiting the turn on a red light.
A driver turning right at a signal must yield to pedestrians crossing the street.
A driver turning right is looking left for traffic, which is away from the pedestrian stepping off the curb.
If you are turning right, yield to pedestrians crossing the street.
A green traffic light means you can go through the intersection, and you must yield to emergency vehicles and others as required by law.
A green light does not suspend the right-of-way rules; it only settles who waits for the signal.
Green traffic lights mean you can go through the intersection. You must yield to emergency vehicles and others as required by law.
On a steady green light you may turn left only when it is safe to do so.
A steady green gives you no protection against oncoming traffic; only a green arrow does that.
If you are turning left, a steady green traffic light means you may turn but only when safe to do so.
On the test
What must a driver wait for at a red light before moving ahead?
A green light and no crossing traffic. The green is not the whole permission. Crossing traffic finishing its move is still crossing traffic. Connecticut Driver's Manual, p.45: “You must wait until the traffic light turns green and there is no crossing traffic before you may move 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 Connecticut Driver's Manual, published by the Connecticut Department of Motor Vehicles, and against the state code itself. Last checked 2026-09-16.
- src/assets/drivers-manuals/CT.pdf (Connecticut Driver's Manual, Revised March 2023, retrieved 2026-09-14)
- src/assets/drivers-manuals/CT.pages.txt (plain pdftotext over that PDF; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json (sha256, folio offset 2, folioMarker, nonLawPages and the extraction flag, each with its measured basis)