What does a flashing green light mean in a pedestrian crossing?

A flashing green light at a pedestrian crossing indicates that pedestrians are allowed to cross the road safely. This signal is specifically designed to alert both drivers and pedestrians about the crossing status. When the light is flashing green, it serves as a clear indication that pedestrians may proceed, promoting their right of way.

In terms of traffic flow and safety, this signal helps manage interactions between vehicles and foot traffic effectively. It is crucial for drivers to be attentive and prepare to yield to those crossing at that moment, ensuring that the area is safe and accessible for pedestrians.

The other choices may lead to misunderstandings about pedestrian rights in this context. For instance, caution for drivers is not the primary message conveyed by a flashing green light; rather, it emphasizes the action that pedestrians should take. Likewise, "stop for pedestrians" would correspond to different signals indicating that pedestrians are already crossing or about to cross, while "pedestrian crossing is closed" would not be represented by a flashing green light at all. Therefore, option C accurately reflects the intended meaning of the indication, ensuring clarity in traffic laws and pedestrian safety protocols.