A 3-minute lesson from the Utah course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Warning signs tell you a hazard is ahead so you can slow down before you reach it. Most are yellow diamonds. Orange signs mean a work zone, where people are working near traffic and fines for speeding double.
Know the rule
Warning signs are usually diamond-shaped and yellow with black letters or symbols. They warn of possible danger ahead.
Stop Sign AheadAdvisory speed around a curveSchool Crossing
Know the rule
Work zone signs are diamond or rectangular and orange with black letters or symbols. They warn of workers ahead, reduced speed, detours, slow-moving road machinery, or surface changes.
You pass an orange 'Flagger Ahead' diamond, then see a worker holding a STOP paddle, even though the light at the next intersection is green. You stop and wait until the flagger turns the paddle to SLOW.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
What shape and color are most warning signs, such as curve or merge warnings?
Round, red with white letters
Square or rectangular, blue with white letters
Diamond, yellow with black symbols
Octagon, red with white letters
Answer: Diamond, yellow with black symbols
Warning signs are usually diamond shaped and yellow with black lettering or symbols.