What does a green arrow signify for the indicated lane of traffic?

A green arrow is a traffic signal indicating that vehicles may proceed in the direction the arrow points, similar to a circular green light. However, an important distinction exists: when a driver sees a green arrow, they are only permitted to move in the direction indicated. This is crucial for managing traffic flow and ensuring safety at intersections, especially where turns are involved.

In contrast, while a circular green light allows traffic to proceed in any direction, a green arrow specifically restricts movement to the lane and direction indicated by the arrow, emphasizing the need for adherence to the traffic control device. This clarification helps prevent confusion and supports safe driving practices at intersections where multiple movements may occur simultaneously.