What is a common warning sign for pedestrians?

A yellow or fluorescent yellow-green pedestrian crossing sign is a common warning sign for pedestrians because it is specifically designed to alert drivers to the presence of pedestrians in the area, particularly at crossings. These signs are highly visible and indicate where pedestrians are likely to be crossing the road, helping to enhance safety for individuals on foot. Identifying such signs is crucial for drivers to take the necessary precautions and reduce speed in areas where pedestrian activity is high. The color and design of these signs draw attention, making it clear that extra caution is required.