Where is it NOT safe to make a U-turn?

Making a U-turn on the curve of a road is not safe due to several factors that affect visibility and control. When you attempt a U-turn in such a location, the curvature can limit your view of oncoming traffic and reduce your awareness of potential hazards. Additionally, the proximity to the road's edge in a curved area can make it difficult for other drivers to anticipate your movement, thus increasing the risk of an accident.

In contrast, executing a U-turn on a straight road, near a traffic light, or in a parking lot tends to provide clearer visibility and better conditions for safely completing the maneuver, as these settings generally offer more space and predictable traffic patterns. Therefore, the curve of a road presents unique challenges that make it an unsafe choice for a U-turn.