What color are signs typically used in construction zones for warning drivers?

In construction zones, signs are primarily used to warn drivers about potential hazards and changes in roadway conditions. The color most commonly utilized for warning signs in these situations is yellow with black lettering. Yellow is chosen because it is highly visible and draws attention, helping to alert drivers to the need for caution ahead.

Yellow is universally recognized as a warning color, and when paired with black lettering, it allows for clear communication of important messages such as "Road Work Ahead" or "Detour." This ensures that motorists can quickly comprehend the sign's message and respond appropriately, which is critical for their safety and the safety of construction workers.

Utilizing a color scheme like yellow with black lettering significantly enhances visibility and legibility, especially under varying weather conditions and during both day and night. Therefore, the correct understanding of construction zone signage directly contributes to overall road safety.