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North Dakota driving lesson · Signs, Signals & Markings

Traffic signals & turn arrows

A 3-minute lesson from the North Dakota course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
3 minutes
Course unit
Signs, Signals & Markings
Checkpoint questions
6
Source pages
19, 20

Traffic signals work only if everyone follows them. Learn what each color means when steady and when flashing, when you may turn on red, and what the four left-turn arrows tell you.

Traffic signal (red, yellow, green individual heads)
Steady red, yellow and green signals

Steady signals

Steady signals
SignalMeaning
RedSTOP at the stop line or before the crosswalk
YellowWARNING/CAUTION: changing from green to red
GreenGO, but only if the intersection is clear
Green arrowYou may make the movement the arrow shows
Handbook p. 19 ↗

Know the rule

At a red light, stay stopped until the light changes and the intersection is clear of pedestrians and vehicles.

Handbook p. 19 ↗

Know the rule

If a green arrow comes on with a red light, you may turn in the arrow's direction. Yield to all pedestrians and vehicles already in the intersection.

Handbook p. 19 ↗

Know the rule

You may turn right on a red light after stopping, when the intersection is clear of pedestrians and vehicles, unless a sign prohibits it.

Handbook p. 19 ↗

Know the rule

You may turn left on a red light from a one-way street onto a one-way street, unless a sign prohibits it.

Handbook p. 19 ↗

Know the rule

If the signals are dark, such as in a power outage, stop and yield the right of way to any vehicle in the intersection.

Handbook p. 19 ↗
Flashing red and flashing yellow signals (composite)
Flashing red and flashing yellow signals

Flashing signals (used late at night or in light traffic)

Flashing signals (used late at night or in light traffic)
SignalMeaning
Flashing redSame as a stop sign: STOP, go when clear
Flashing yellowProceed with CAUTION
Handbook p. 19 ↗
Left turn arrow signal sequence (red, yellow, flashing yellow, green)
Left-turn arrows: steady red, steady yellow, flashing yellow, steady green

Left-turn arrows

Left-turn arrows
ArrowWhat it means
Steady redSTOP. Left-turning drivers must stop and wait
Steady yellowWARNING. The left-turn signal is changing to red
Flashing yellowCAUTION. Yield to oncoming traffic and pedestrians first
Steady greenGO. Left-turning drivers have the right-of-way
Handbook p. 20 ↗

Know the rule

During a flashing yellow arrow, oncoming traffic will typically have a green light.

Handbook p. 20 ↗

Put it into practice

At 2 a.m. the signal ahead is flashing red. Treat it exactly like a stop sign: stop completely, then go when the intersection is clear of pedestrians and vehicles.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

What does a steady red traffic signal require you to do?
  1. Yield only if pedestrians are present
  2. Stop only if other vehicles are visible
  3. Stop at the marked line or crosswalk
  4. Slow down and proceed with caution

Answer: Stop at the marked line or crosswalk

A red indication means STOP; you must stop at a marked stop line or before a crosswalk and remain stopped until the light changes and the intersection is clear.

Handbook p. 19 ↗
What does a flashing red traffic signal mean?
  1. Proceed with caution, no stop required
  2. The same as a stop sign
  3. The same as a yield sign
  4. Signal malfunction, drive normally

Answer: The same as a stop sign

Flashing red means the same thing as a stop sign: come to a complete stop.

Handbook p. 19 ↗
When traffic signals are dark due to a power outage, what must a driver do at that intersection?
  1. Treat it as a yield sign only
  2. Proceed at normal speed
  3. Wait for a police officer before proceeding
  4. Stop and yield to vehicles in the intersection

Answer: Stop and yield to vehicles in the intersection

If the traffic signals are dark, the driver must stop and yield the right of way to any vehicle already in the intersection.

Handbook p. 19 ↗
When may you legally turn right on a red light in North Dakota?
  1. Only between 6 a.m. and 6 p.m.
  2. Only if a police officer waves you through
  3. After stopping, when the intersection is clear
  4. Never, right turns on red are illegal statewide

Answer: After stopping, when the intersection is clear

You may turn right on red after stopping when the intersection is clear, unless there is a sign prohibiting the turn.

Handbook p. 19 ↗
A steady green left-turn arrow means what for left-turning drivers?
  1. They have the right-of-way to go
  2. They may proceed only if no pedestrians are visible
  3. They must yield to all oncoming traffic first
  4. They must wait for a gap in traffic

Answer: They have the right-of-way to go

A steady green left-turn signal means GO — left-turning drivers have the right-of-way.

Handbook p. 20 ↗
A flashing yellow left-turn arrow means what?
  1. The intersection is closed to left turns
  2. You may turn left after yielding to traffic
  3. You have the right-of-way over oncoming traffic
  4. Stop and wait, the signal is about to turn red

Answer: You may turn left after yielding to traffic

A flashing yellow left-turn signal means you may cautiously turn left, but only after yielding to oncoming traffic and pedestrians.

Handbook p. 20 ↗
Take the lesson checkpoint in the app

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