What color might pedestrian and school signs be?

Pedestrian and school signs are typically designed using fluorescent yellow-green because this color provides high visibility and is effective in alerting drivers to the presence of pedestrians and school zones. The brightness and distinctiveness of fluorescent yellow-green make it easier for drivers to notice these signs, especially in low light conditions or at dusk and dawn. This enhances safety around school areas, where children are often present.

Fluorescent yellow-green is specifically chosen for its ability to catch attention quickly, which is crucial in areas where children may unexpectedly cross the street. Other colors, such as white, do not offer the same level of visibility in critical situations, while fluorescent orange is more commonly associated with construction zones. Bright blue does not align with the color specifications for pedestrian and school signage, as it is used for services and information signs rather than for traffic control or warning signs.