Intersection right of way — Missouri Permit Test
Intersection right of way on the Missouri permit test — 7 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Drivers turning left must yield to oncoming vehicles going straight.
The turn crosses their path, so the wait belongs to you. Misjudging this is one of the most common ways people are hurt at intersections.
Drivers turning left must yield to oncoming vehicles going straight;
At a four-way stop the driver who reaches the intersection first may proceed before the others, after coming to a complete stop.
Order of arrival settles it, but only after everyone has actually stopped. Rolling in first does not count as arriving first.
At a four-way stop, the driver reaching the intersection first may proceed before the other drivers (after coming to a complete stop);
At an intersection with no stop sign or traffic signal, other than a roundabout, drivers must yield to vehicles coming from the right.
With nothing posted, somebody still has to go second. Missouri settles it by the side the other car is on.
At an intersection where there is no stop sign or traffic signal (with the exception of roundabouts), drivers must yield to vehicles coming from the right; and
Drivers entering a road from a driveway, alley, or roadside must yield to vehicles already on the main road.
Traffic already flowing has nowhere to go. Joining it is your maneuver, so the gap is yours to find.
Drivers entering a road from a driveway, alley, or roadside must yield to vehicles already on the main road;
Drivers must yield where necessary to avoid striking pedestrians who are legally crossing the road.
A person on foot loses every collision. The duty to yield does not wait for a marked crosswalk.
Drivers must yield where necessary to avoid striking pedestrians who are legally crossing the road;
A driver crossing a sidewalk, or entering or exiting a driveway, alley, or parking lot, must yield to pedestrians, and it is illegal to drive on a sidewalk except to cross.
The sidewalk belongs to people walking. Your car is a visitor there, and only briefly.
It is illegal to drive on a sidewalk except to cross;
When approaching a roundabout you must always yield to traffic in the circle and to pedestrians in the crosswalks, and wait for a gap before entering.
Traffic in the circle cannot stop for you without causing a pile-up behind it. Entering is the maneuver that waits.
When approaching a roundabout intersection, always yield to traffic in the circle and pedestrians in the crosswalks.
On the test
You are turning left and a vehicle is coming straight toward you. Who yields?
You do, to the oncoming vehicle. The turn crosses their path, so the wait belongs to you. Misjudging this is one of the most common ways people are hurt at intersections. Missouri Driver Guide, p.23: “Drivers turning left must yield to oncoming vehicles going straight;”
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 Missouri Driver Guide, published by the Missouri Department of Revenue, and against the state code itself. Last checked 2026-09-16.
- src/assets/drivers-manuals/MO.pdf (Missouri Driver Guide, Revised August 2026, retrieved 2026-09-14)
- src/assets/drivers-manuals/MO.pages.txt (plain pdftotext over that PDF; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json (sha256, folio offset 2, folioMarker, nonLawPages and the extraction flag, each with its measured basis)