When is it prohibited to make a U-turn?

Making a U-turn on a curve or hill is prohibited primarily for safety reasons. This restriction exists because visibility is often limited in such areas, making it difficult for drivers to see oncoming traffic or obstacles that may be approaching. Performing a U-turn where visibility is compromised increases the risk of collisions since other drivers may not have enough time to react to your sudden maneuver. Therefore, U-turns are only safe to perform in locations where there is a clear line of sight, allowing both the driver making the turn and other road users to maintain a safe distance from potential hazards.