Collision factors — Louisiana Permit Test
Collision factors on the Louisiana permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
The 4 factors behind most U.S. collisions are equipment failure, roadway design, poor roadway maintenance and driver behavior.
Most of these you cannot control, but how you drive is the one you can always change.
4. Driver Behavior – speeding, tailgating, aggressive driving, unsafe lane changing, failure to signal, and failure to give the right of way.
In 95% of motor vehicle collisions, some factor of driver behavior combined with another factor caused the crash.
Nearly every crash has a driver choice in it, which is why good habits matter so much.
In 95% of motor vehicle collisions there was some factor of driver behavior combined with one of the other three factors that caused the crash to happen.
To prevent injuries in a collision, put loose items in the trunk whenever possible.
In a crash, loose objects fly forward and can strike the people inside the car.
To prevent some injuries that commonly occur in a collision you should put loose items in the trunk whenever possible.
Keep a collision kit in your glove compartment with paper, pen, insurance and medical information, and emergency supplies.
After a crash you may be shaken, and having these things ready makes it easier to swap facts and get help.
Your kit should include paper, pen, insurance information, medical information if needed, and emergency supplies.
On the test
Speeding, tailgating and failure to signal fall under which collision factor?
Driver behavior. Most of these you cannot control, but how you drive is the one you can always change. Class D & E Driver's Guide, p.112: “4. Driver Behavior – speeding, tailgating, aggressive driving, unsafe lane changing, failure to signal, and failure to give the right of way.”
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.")