Scanning stopping sight — Louisiana Permit Test
Scanning stopping sight on the Louisiana permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
At 60 mph it can take about 4 to 5 seconds, or 359 feet, to react to a problem and stop.
At highway speed your car covers more than a football field before it stops, so you must see danger very early.
At 60 mph, it can take about 4 to 5 seconds or 359 feet to react to a problem and bring the vehicle to a stop.
At 30 mph it can take about 2 to 3 seconds, or 123 feet, to react to a problem and stop.
Even at city speed you travel a long way before you stop, which is why you watch the road well ahead.
At 30 mph, it can take about 2 to 3 seconds or 123 feet to react to a problem and bring the vehicle to a stop.
At 60 mph, if you cannot see at least 400 feet ahead, you are driving too fast for your visibility.
If you cannot see as far as you need to stop, a hazard can appear too late for you to miss it.
At 60 mph, if you cannot see at least 400 feet ahead, you are driving too fast for your visibility.
At 30 mph, if you cannot see at least 150 feet ahead, you may not be driving safely.
On a dark or foggy street, your speed has to fit how far you can see, even when it is under the limit.
At 30 mph, if you cannot see at least 150 feet ahead, you may not be driving safely.
On the test
At 60 mph on dry pavement, about how far can it take to react to a problem and stop?
359 feet. At highway speed your car covers more than a football field before it stops, so you must see danger very early. Class D & E Driver's Guide, p.62: “At 60 mph, it can take about 4 to 5 seconds or 359 feet to react to a problem and bring the vehicle to a stop.”
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 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.")