Highway types — Louisiana Permit Test
Highway types on the Louisiana permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Interstate highways with even numbers run east and west.
Knowing the number pattern helps you tell which way an interstate goes without a map.
EVEN numbered highways go East and West.
Interstate highways with odd numbers run north and south.
If you know the direction you need to go, the number tells you if you are on the right interstate.
ODD numbered highways go North and South.
Expressways are divided highways with at least 4 lanes.
With traffic split by direction and more lanes, high-speed drivers are kept apart from oncoming cars.
They are divided highways with at least 4 lanes; most in the country are commissioned as Interstates.
On a limited access highway, you may get on or off only at signed exits.
With no driveways or side streets, traffic flows fast and no one pulls out in front of you by surprise.
Limited Access Highway: A highway where access is limited to signed exits.
On the test
Which way does an even-numbered interstate highway run?
East and west. Knowing the number pattern helps you tell which way an interstate goes without a map. Class D & E Driver's Guide, p.20: “EVEN numbered highways go East and West.”
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.")