Chapter 5: Signs, Signals, and Road Markings

A driver must be able to instantly understand and obey a complex system of traffic controls to navigate safely. These signals, signs, and pavement markings form a universal language that directs the flow of traffic, warns of hazards, and establishes the rules of the road. A thorough knowledge of this language is not just a requirement for the written exam; it is a non-negotiable skill for preventing crashes and ensuring orderly travel for everyone.

Sign Colors and Shapes

The color and shape of a traffic sign provide the first and most immediate clue to its meaning, often allowing a driver to understand the message even from a distance before the words are readable. Each color and shape has a specific, standardized meaning.

Sign Colors

• Red — Prohibitive or stop. This color is used for stop signs, yield signs, “Do Not Enter,” and “Wrong Way” signs, indicating an action the driver must not take or a critical command that requires an immediate response.
• Black and White — Regulatory. These signs state the law, such as speed limits, parking rules, and other legal requirements.
• Yellow — General warning. This color alerts drivers to upcoming hazards or changes in road conditions, such as a curve, a slippery surface, or an intersection ahead.
• Fluorescent Yellow-Green — Pedestrian, bicycle, and school-related warnings. This bright color is used for signs near schools and crosswalks to increase their visibility and alert drivers to the presence of vulnerable road users.
• Orange — Construction and maintenance warning. Orange signs indicate a temporary work zone ahead, signaling the need for reduced speed and heightened caution.
• Green — Directional guidance. These signs provide information on destinations, distances, and directions, such as on highway exit signs.
• Blue — Motorist services. This color indicates nearby services like hospitals, gas stations, food, and lodging.
• Brown — Public recreation and scenic guidance. These signs point to parks, historical sites, and other points of interest.