Construction zone signs are identified by which color scheme?

• A. White background with black letters.
• B. Yellow background with black letters.
• C. Blue background with white letters.
• D. Orange background with black letters.

Answer: (D)

Color cues help you quickly grasp the situation on the road. Construction zone signs use an orange background with black letters because orange is reserved for temporary work zones and grabs attention in changing driving conditions. The high-contrast orange-and-black message signals drivers to slow down, be prepared for lane changes, and follow directions through the work area. Other color schemes indicate different purposes: white with black letters are regulatory signs, yellow with black letters warn of hazards, and blue with white letters point to services or information. So, orange with black letters specifically identifies construction zones.