Arizona Improv Traffic School Practice Exam 2026 – Complete Preparation Guide

Construction signs are typically orange because this color is used specifically to alert drivers to reduced visibility due to roadwork, detours, or construction hazards. Orange is highly visible and stands out against a variety of backgrounds, making it effective for catching attention. The use of orange signals that caution is needed as it indicates temporary conditions that could affect safe driving.

While other colors are significant in road signage—for instance, yellow is generally used for warning signs about potential hazards or changes in road conditions, green is used for informational or directional signs, and blue indicates services—orange remains the standard color for construction-related signage to ensure drivers are aware of ongoing work and potential delays or changes in road conditions.