Road Sign Meanings: What are the Rules of the Road?
Have you ever passed a road sign and realized you didn’t understand what the message or symbol was telling you to do? Or have you ever wondered if the color and shape of the road sign have a specific meaning? Or simply curious about the road sign meaning?
Drivers must be able to identify road sign meanings quickly and accurately. Understanding must also take place while traveling at what may be high speeds. For that and other reasons, a universal set of guidelines has been established to help people quickly answer, “what do road signs mean?” while driving.
With so many signs on the road, it’s easy to get confused wondering about road signs and meanings. The problem is compounded when language barriers, color vision deficiencies, and illiteracy are factored into the equation. Unfortunately, one wrong interpretation of road sign meanings can lead to a serious accident or injury.
To help prevent this, the U.S. Department of Transportation (DOT) has increasingly used symbols rather than words to convey the different safety messages on roadways and highways. Pictograms and symbols are easier to recognize and understand, cross various language barriers, and often close the communication gap. Symbols are quickly becoming the standard for traffic control devices throughout the world.
Understanding the traffic signs and meanings can be as simple as recognizing what the colors, shapes, and symbols on the sign represent. For many drivers, this system eliminates the need to read road signs and allows for quick identification of the intended meaning.
For instance, the colors that make up all road signs are an essential indicator of the information they contain. The standards for the design and application of the signs as controlled under the Manual on Uniform Traffic Control Devices (MUTCD) explain the significance of the colors on road traffic signs.
Although the colors play a critical factor in providing consistency throughout the roads and highways, each shape of road signs has a specific meaning, as well. The shape of road traffic signs can alert drivers about the message prior to reading the contents. Depending on weather conditions, the only thing you might be able to make out is the shape of the sign. If that’s the case – the shape of the sign is just as critical as the message, if not more.
Many road sign meanings can also be established through their outlines. For drivers unable to determine a sign’s color, the shape could play a pivotal role in conveying the intent or meaning of road signs.
There are some exceptions to the shape and color rules for road sign meanings. For example, the railroad crossbuck sign is an indicator of an upcoming railroad crossing, but it is not circular. However, the generally uniform application of standards makes it easy to ascertain the meaning of road signs when driving.
The MUTCD has specific requirements for the size of signs and the material the message is printed on, in addition to the color, shape, and symbol as mentioned above. For example, when signs are used at night, they need to be either retroreflective, with a material that has a smooth, sealed outer surface, or illuminated to show similar shape and color both day and night. However, custom traffic signs are often needed for unique messages, too.
Now that you know the answer to “what do road signs mean?” when it comes to colors and shapes, take a few minutes to read what road sign symbols mean and see a few examples
Lockout tagout is a safety procedure that ensures machines and equipment are properly shut off during maintenance or repair work.
Shop premium-grade lockout tagout locks, kits, devices, and supplies. Make OSHA compliance a priority and have a safe and secure workplace.