A cross over a U arrow means?

A crossover with a U arrow is a roadway symbol that indicates that making a U-turn is prohibited. This is an important sign for drivers to be aware of, as it helps maintain traffic flow and safety on the roads. The U-turn ban is typically in place in areas where a U-turn could create dangerous situations, such as near intersections, in areas with limited visibility, or where traffic conditions do not allow for safe turning maneuvers.

In this context, other options do not accurately describe the meaning of the symbol. While "No left turn" could be relevant in some situations, it does not pertain to the U-turn specifically. "Must turn around" implies that drivers are required to make a U-turn, which contradicts the prohibition indicated by the sign. Lastly, "Only U-turns allowed" is incorrect as the presence of the U arrow signifies that such maneuvers are not permitted at that location. Understanding this symbol helps drivers navigate safely and adhere to traffic regulations effectively.