Traffic control devices — Louisiana Permit Test
Traffic control devices on the Louisiana 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 law enforcement, highway workers and school crossing guards who are controlling traffic.
A crossing guard can see the children you cannot. If drivers ignored the guard, kids would be hit.
Traffic control also can be provided by law enforcement, highway personnel or school crossing guards.
A sign's shape tells you what kind of sign it is before you are close enough to read its words.
Shape shows up from far away. Knowing it gives you more time to slow down or get ready to stop.
A sign’s shape can tell you something about what it means before you are close enough to read it.
On the test
Who else, besides signs and signals, gives traffic directions you must obey?
Police, highway workers and crossing guards. A crossing guard can see the children you cannot. If drivers ignored the guard, kids would be hit. Class D & E Driver's Guide, p.22: “Traffic control also can be provided by law enforcement, highway personnel or school crossing guards.”
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 Class D & E Driver's Guide, published by the Louisiana Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/LA.pdf (Class D & E Driver's Guide, DPSMV2052 (R08/25), Louisiana Office of Motor Vehicles, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA-exam.html (the OMV's Permits page, https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/permits/, archived 2026-10-04; the 40-question count)
- https://expresslane.la.gov/omv/resources/driver-manuals/
- https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/new-licenses/ (read 2026-10-04; "An 80% is the minimum passing score for the knowledge test.")