Traffic control devices — South Dakota Permit Test
Traffic control devices on the South Dakota permit test — 1 rule, each with the reason behind it and a question on it while it is fresh.
The rules
Traffic control devices include signals, signs, pavement markings, and directions given by law enforcement, highway personnel, and school crossing guards.
A driver who ignores a crossing guard because the light is green can drive into a line of children.
Traffic control devices include traffic signals, signs, pavement markings, and directions provided by law enforcement, highway personnel, and school crossing guards.
On the test
Which of these counts as a traffic control device under the manual?
Directions from a school crossing guard. A driver who ignores a crossing guard because the light is green can drive into a line of children. South Dakota Driver License Manual, p.31: “Traffic control devices include traffic signals, signs, pavement markings, and directions provided by law enforcement, highway personnel, and 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
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All South Dakota permit topics
Where these come from
Every rule here is checked against South Dakota Driver License Manual, published by the South Dakota Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/SD.pdf (South Dakota Driver License Manual, Revised 11/2024, South Dakota Department of Public Safety, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD-exam.html (South Dakota Department of Public Safety, South Dakota Driver License Testing Information, KB0043731, read 2026-10-04; states the 80% rate; sha256 pinned under examSource)
- https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043733 (read 2026-10-04; links the manual)