Final answer:
A green arrow traffic signal indicates a protected turn where oncoming traffic is stopped, allowing a safe turn for vehicles and crossing for pedestrians.
Step-by-step explanation:
When a green arrow traffic signal is shown alone, it typically means that you have the right of way to make a protected turn in the direction of the arrow. This ensures that the vehicles making the turn do not have to yield to oncoming traffic, as the oncoming traffic would be stopped by a red light. Pedestrian safety is enhanced during this phase because the traffic signal allows them to cross at appropriate times, reducing the likelihood of needing to dodge traffic.
A green arrow traffic signal shown alone typically indicates a protected turn. This means that vehicles are allowed to make a turn in the direction of the arrow, while vehicles coming from other directions are required to yield. It is important to obey the green arrow signal and yield to oncoming traffic before making the turn. For example, if you are at an intersection with a green arrow signal pointing to the left, you can safely turn left while oncoming traffic has a red signal.