A 3-minute lesson from the Missouri course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Lines on the pavement show where lanes are divided, which way traffic flows, where you may pass or change lanes, and where to stop. Two things decide what a line means: its color, and whether it's solid or broken.
Two solid yellow lines mark the center of a four-lane road
Know the rule
Two-lane roads may have no passing zones, marked by a solid yellow line on your side of the center line. They're on hills or curves where you can't see far enough ahead to pass safely.
Crosswalks mark where pedestrians cross. Yield to pedestrians in or about to enter a crosswalk. Not all crosswalks are marked, so watch for pedestrians at intersections without them.
On a two-lane road, you're about to pass a truck when you see a solid yellow line starting on your side just ahead. You must finish a pass before the zone begins; since you can't, stay behind the truck.
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 does a yellow line on a roadway separate?
Traffic traveling in the same direction
Opposite-direction traffic
Turning traffic only
Bicycle lanes from car lanes
Answer: Opposite-direction traffic
Yellow lines separate traffic traveling in opposite directions.