Question: what is the difference between a solid white line and a solid yellow line?
Answer: Markings: Colors, Patterns, Meaning Broken White Line: you may change lanes if it is safe to do so. Solid White Line: requires you to stay within the lane and also marks the shoulder of the roadway. YELLOW LINES mark the center of a two-way road used for two-way traffic. ... Two solid yellow lines mean no passing.