Oklahoma driving lesson · Signs, Signals and Markings
Pavement markings and lane control signals
A 3-minute lesson from the Oklahoma course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Pavement markings regulate traffic. The color tells you direction: yellow lines separate traffic moving in opposite directions, white lines separate traffic moving the same way. Whether a line is solid or dashed tells you whether you may pass.
Yellow and white markings show you:
Which lane you should be using
Where visibility is limited and passing is dangerous
Where traffic is traveling toward you in the next lane
Where you may safely wait for an opportunity to make a left turn
White solid, white dashed and yellow solid lines on a divided road
Know the rule
A solid yellow line on your left tells you that you're on the proper side of the road, and that crossing it is dangerous because of approaching vehicles or obstacles in the median.
On a two-lane highway the center line is solid on your side and dashed on the other side. You may not pass, even though drivers coming the other way may. You may cross only to turn left.
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 single solid yellow line in your lane mean?
Do not pass
Passing is allowed when safe
You are on a one-way street
Merge left ahead
Answer: Do not pass
A solid yellow line in your lane means do not pass, though you may cross it to turn left.
