Lane control signals — Alaska Permit Test
Lane control signals on the Alaska permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Lane control signals with X’s or down arrows are used above reversible lanes; use such a lane only as the signal permits.
A reversible lane carries traffic one way part of the day and the other way the rest, so only the signal tells you which.
Distinctive signals with X’s or down arrows are used above reversible lanes.
A steady red X over a lane means do not use the lane; opposing traffic is permitted to use it.
The lane is carrying traffic toward you, so driving in it means a head-on crash.
Don’t use the lane. Opposing traffic is permitted to use the lane.
A steady yellow X means clear the lane in a safe manner; a red X signal is about to appear.
The lane is about to open to oncoming traffic, so you need to be out of it before they arrive.
Clear the lane in a safe manner. A Red X signal is about to appear.
A steady green arrow over a lane means travel in that lane is permitted.
The signal is the only sign that the lane is open in your direction right now.
Steady Green Arrow Travel in lane is permitted.
Do not enter a reversible lane if its signals are not illuminated.
Dark signals tell you nothing about which way traffic in that lane is moving.
Do not enter the lane if signals are not illuminated.
Reversible lanes may be marked with double yellow dashed lines on each side.
The unusual marking warns you that the lane does not always run the same way.
Such lanes may be marked with double yellow dashed lines on each side.
On the test
Where are lane control signals with X’s and down arrows used?
Above reversible lanes. A reversible lane carries traffic one way part of the day and the other way the rest, so only the signal tells you which. Alaska Driver Manual, p.58: “Distinctive signals with X’s or down arrows are used above reversible lanes.”
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
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against Alaska Driver Manual, published by the Alaska Department of Administration, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/AK.pdf (Alaska Driver Manual, REV.10/2025, Alaska Division of Motor Vehicles, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/AK.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- https://dmv.alaska.gov/credential-services/drivermanual/ (read 2026-10-04; links the manual)
- https://dmv.alaska.gov/credential-services/instruction-permit/ (read 2026-10-04; states no count or mark)
- https://dmv.alaska.gov/credential-services/your-first-alaska-drivers-license/ (read 2026-10-04; states no count or mark)
- https://www.akleg.gov/basis/aac.asp?media=print&secStart=2.90.010&secEnd=2.90.990 (2 AAC 90, read 2026-10-04; 2 AAC 90.420(h)(2) sets the knowledge test's retest wait and no figure)