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Oklahoma Class D Knowledge Test Practice
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Traffic Signals & Road MarkingsStandalone practice
You drive on a road with a signal above each lane. The signal above your lane changes from a green arrow to a steady yellow X. What should you do?
A travels in the right lane beneath a steady yellow X. A green downward arrow is displayed above the empty lane to its left.
Correct answer: Move out of this lane safely, because it will soon close
Why
Lane control signals let a road change the direction or use of some lanes, for example during rush hours. A green arrow means that the lane is open to you, and a red X means that you must not drive in it. A flashing yellow X means that you may use the lane only for a left turn.
Verified against Oklahoma Driver Manual · Lane Control Signals · p. 27
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