Ontario Bus Driver Knowledge Test 2025 – 400 Free Practice Questions to Pass the Exam

School zone signs are colored yellow and green to enhance visibility and alert drivers that they are approaching an area where children are likely to be present. This combination of colors is specifically chosen for its high visibility, particularly during the day and in different weather conditions. Yellow signifies caution, while green is often associated with safety, making these colors effective in conveying the need for vigilance in school zones.

Using yellow and green in school zone signs is part of a broader strategy to promote safety. These colors differentiate school zones from other types of warning signs, ensuring that drivers recognize the increased need for careful driving in these areas. The design and color scheme are standardized across many regions for consistency, which helps drivers to quickly understand the importance of the sign when they see it.

The other color combinations listed do not provide the same level of visibility or context related to school safety.