Final answer:
False. Red, white, and black are not the only colors found on regulatory signs.
Step-by-step explanation:
Your statement is accurate. Regulatory signs, which convey specific rules and regulations to road users, are not limited to red, white, and black colors. While red often signifies stop or yield, white is commonly used for speed limits, and black is employed for various regulatory instructions like parking restrictions.
However, caution and warning signs play a crucial role in road safety and are represented by colors such as yellow, which is frequently used for general warning signs, orange for construction and maintenance warnings, and green for directional guidance or information. Understanding the diverse color codes on regulatory and warning signs is essential for drivers to navigate roads safely and adhere to specific rules and potential hazards. The use of various colors enhances the visibility and comprehension of these critical road signs.