What is the purpose of yellow-green traffic signs?

Yellow-green traffic signs are specifically designed to alert drivers to potential hazards related to pedestrian activity. These signs are utilized in areas where pedestrians may be crossing or present, serving as a warning to drivers to be vigilant and prepared to stop. This color choice is distinct from other traffic signs, making it easily recognizable and emphasizing the importance of pedestrian safety.

In contrast, regulatory signs are typically white or red and provide rules that must be followed, while construction information signs are generally orange and indicate work zones and related hazards. Driver services signs often use blue, providing information about services available to motorists, such as rest areas and gas stations. Each of these other categories has a specific function and color coding that distinguishes them from the critical warnings associated with yellow-green signs.