Under what conditions is it legal to make a U-turn?

Making a U-turn is legal under specific conditions that prioritize safety and traffic flow. It is permitted when there is no oncoming traffic, allowing the driver to complete the turn without endangering themselves or other road users. Additionally, the lack of prohibitive signs indicates that the area is suitable for such a maneuver. These precautions ensure that the U-turn can be executed safely without causing disruptions or hazards to other vehicles.

In contrast, making a U-turn during heavy traffic may lead to dangerous situations as it can obstruct the flow of vehicles and create confusion. Similarly, executing a U-turn on a wet road conditions could increase the risk of losing control of the vehicle, making it unsafe. Lastly, U-turns are not necessarily determined by the presence of signals; a signal might inform drivers of traffic rules but does not dictate the safety of making a U-turn. Thus, ensuring clarity about the absence of oncoming traffic and no prohibitive signs is critical when considering making a U-turn.