Signs & Signals
Utah traffic signs are built so that shape and color tell you the message before you can read the words. Reading them at a glance is the foundation of safe driving and a major part of the knowledge test.
Shapes and colors
A red octagon always means STOP and a downward triangle means YIELD. Yellow diamonds warn of hazards ahead, the five-sided pentagon marks a school zone, and white rectangular signs are regulatory, such as posted speed limits you must obey.
Traffic signals
A steady red means stop and stay stopped, while a steady yellow warns the light is about to turn red, so stop if you can do so safely. A flashing red works like a stop sign: stop, then go when it is safe.
Pavement markings
A solid yellow line on your side means no passing, while a broken yellow line means you may pass when the way is clear. White lines separate lanes moving in the same direction.