What does it mean when you see a "No U-turn" sign?

Seeing a "No U-turn" sign indicates that U-turns are specifically prohibited at that intersection. This means that drivers are not permitted to turn their vehicle around to go in the opposite direction at that location due to potential safety hazards, traffic flow concerns, or road design factors. Such restrictions help maintain order on the road and reduce the risk of accidents, as U-turns can often disrupt the travel of other vehicles and create dangerous situations, especially at busy intersections.

In contrast to the other choices, which either imply the allowance of U-turns or indicate specific conditions under which they might be permitted, the presence of a "No U-turn" sign makes it clear that such maneuvers are not allowed at that point. This regulation is in place to promote safe driving practices and to facilitate smoother traffic movement.