Take a deep dive into US road signs and learn what each MUTCD traffic sign means. Roadway signs in the United States come in different colors: red is only used on stop, yield and prohibition signs. Regulatory signs always have white background, and yellow is used to convey a general warning message.

Road signs are vital for safe driving, providing information about the road ahead, guiding traffic flow, and ensuring the safety of all road users. This guide introduces the basics of road signs. For a more comprehensive understanding of road signs, including detailed definitions, shapes, and colors, be sure to visit our Road Sign Encyclopedia .

Take this free road signs test to see how well you know US traffic signs. Road signs are extremely important as they warn you of possible hazards and inform you of speed limits or road changes.

Two way traffic signs are posted before or on two-way roadways. These two way traffic signs warn drivers that they’re leaving a one-way roadway and entering a roadway with opposing traffic. This might restrict the driver’s ability to freely pass cars.

A yield sign is a regulatory traffic sign that instructs drivers to slow down and, if necessary, stop to allow other road users (vehicles and pedestrians) the right-of-way before proceeding. Characterized by its inverted triangle shape, the sign has a red border, a white background, and prominently displays the word "YIELD."

Side road signs indicate there is a side road that enters the highway, typically from the right. The entry side will be indicated on the sign. This side road sign warns drivers of an upcoming intersection so they can be aware of traffic entering or exiting the highway.

The "Divided Highway" sign means that the two lanes of opposing traffic on the highway ahead are divided by some type of physical barrier or median such as a guardrail, concrete barrier, or a strip of land.

Dip signs indicate that there is a dip or low place in the road. Drivers are suggested to slow down when they see a dip sign. It’s hazardous to encounter this sharp depression in the road while driving at a high speed.

A stop sign is a regulatory sign - a traffic control device that warns drivers to slow down and prepare to stop. It’s used when there are no other cars around, or at the end of a line of traffic. The stop sign shape is an octagon, characterized by …

The slippery road sign is a warning sign. Slippery road signs are posted in areas where a slippery condition might exist. Drivers should use extreme caution and slow their speed when the road is wet or icy. Avoid any sudden changes in direction when conditions are poor.