Answer:
Not allowed to change lanes or cross the line.
Step-by-step explanation:
A solid white line between two lanes of traffic indicates that you are not allowed to change lanes or cross the line. It serves as a clear separation between the lanes and is typically used in areas where lane changes are unsafe or prohibited. Drivers must stay within their designated lane and should not cross over the solid white line unless directed by traffic signs or authorized personnel. This line helps maintain order and safety on the road by preventing unnecessary lane changes or merging in areas where it may be hazardous to do so.