What are the main types of highway directional and regulatory signs?
Nov 12, 2025
You encounter three main types of traffic signs on the road: regulatory, warning, and guide (directional) signs. Each plays a key role in keeping you safe and informed as you drive. Understanding green guide signs helps you follow routes, find exits, and reach destinations more easily. These signs follow color codes and international standards to make navigation clear. Ignoring or misunderstanding signs can have serious consequences. For example:
In Texas, posting fatality statistics on electronic signs led to a 4.5% increase in crash likelihood within the next 10 kilometers.
This trend could mean about 2,600 extra crashes and 16 more fatalities each year in Texas.
Across the United States, similar effects might cause around 17,000 car crashes annually.
By learning how to recognize and r...
