Traffic Signs and Signals Flashcards

What does a green arrow traffic signal mean?

Answer: You may proceed in the direction of the arrow — other traffic is stopped

A green arrow is a protected signal meaning you may proceed in that direction and oncoming conflicting traffic is stopped by a red light.

What does a red X displayed over a highway lane mean in Oklahoma?

Answer: This lane is closed — do not use it

A red X over a lane signals that the lane is closed and drivers must not travel in it, often used in reversible lane systems.

What does a railroad crossing (RR) sign require Oklahoma drivers to do?

Answer: Look, listen, and slow down — be prepared to stop

Railroad advance warning signs require drivers to slow down, look and listen for trains, and be prepared to stop if a train is approaching.

What is the shape of an advance warning sign for a school crossing in Oklahoma?

Answer: Pentagon (five-sided)

School zone advance warning signs are pentagon-shaped (five-sided) with a yellow-green color to alert drivers of children near the road.

A solid white line separating lanes of traffic traveling in the same direction means:

Answer: Lane changes are discouraged but not prohibited

A solid white line discourages lane changes but does not legally prohibit them — drivers should avoid crossing unless necessary.

What does a circular sign with a red border and red slash over a symbol indicate?

Answer: The action depicted by the symbol is prohibited

A red circle with a slash is the universal prohibition sign, meaning the action or movement depicted within it is not allowed.

What does a broken (dashed) yellow center line on an Oklahoma road indicate?

Answer: Passing is permitted when it is safe to do so

A dashed yellow center line indicates that passing is permitted when the way is clear and it is safe to pass in that zone.