When is it permissible to make a U-turn on a curve or near the top of a hill?

Making a U-turn on a curve or near the top of a hill is considered unsafe due to visibility concerns. The main issue is that drivers cannot see oncoming traffic or obstacles when they are approaching these areas. A U-turn requires a significant amount of space and time, and executing one where visibility is limited increases the risk of collisions. Therefore, it is always prohibited to make a U-turn in these situations to ensure the safety of all road users. This rule helps maintain traffic flow and prevents accidents caused by unexpected maneuvers in areas where other drivers may not see you in time to react appropriately. Understanding this regulation is vital for responsible driving and ensuring the safety of oneself and others on the road.