Construction signage typically employs a combination of orange and black, or sometimes fluorescent yellow-green and black. Orange is commonly used for warning signs indicating potential hazards, slow-moving vehicles, or temporary traffic controls. Fluorescent yellow-green is often reserved for signs related to pedestrian safety or school zones. The high contrast of these color combinations enhances visibility, especially in low-light conditions or complex work environments.
The standardized color scheme for these signs plays a vital role in ensuring worker and public safety. Consistent use of specific colors allows for immediate recognition of potential dangers and instructions, facilitating quick reactions and preventing accidents. This standardization also reduces confusion and improves communication on construction sites, contributing to efficient traffic flow and overall project safety. The adoption of these colors has evolved over time, influenced by research on visibility and human perception.