What does a green arrow pointing to the left indicate while driving?

A green arrow pointing to the left indicates that drivers are allowed to make a protected left turn. This means that there is a designated signal granting permission to turn left while oncoming traffic is stopped. The green arrow provides assurance that the turn can be made safely without the risk of another vehicle coming from the opposite direction, as they are held at a red light during this period.

This signaling is crucial for helping to prevent accidents at intersections by clearly delineating when it is safe to turn left. Drivers can proceed with confidence, knowing that they do not need to yield to oncoming vehicles at that moment.