What should drivers do when they see a lighted red arrow?

When drivers see a lighted red arrow, they are required to stop and wait for a green light. A red arrow signals that the movement in the direction of the arrow is strictly prohibited. This means that if a driver encounters a red arrow pointing left, for instance, they must not make a turn in that direction until the signal changes to green. This rule is important to ensure the safety of all road users, allowing traffic and pedestrians the right of way.

The requirement to stop at a red arrow distinguishes it from situations where drivers might be allowed to proceed with caution, yield, or make turns under certain conditions. Therefore, following this signal is crucial for maintaining orderly and safe traffic flow.