What must you do before making a U-turn?

Before making a U-turn, it is crucial to ensure the road is clear and there are no prohibitive signs. This step is vital for several reasons. First, checking the clarity of the road helps ensure that you have enough space to safely complete the U-turn without interfering with other vehicles or obstacles. Secondly, being aware of prohibitive signs, such as "No U-turn," is essential for complying with traffic laws and avoiding potential fines or accidents.

This action contributes to overall safety by allowing the driver to assess if the maneuver can be carried out legally and without risk. It's important to note that while looking for pedestrians and yielding to oncoming traffic are also significant for safe driving practices, the initial check for clear roads and signs specifically addresses the legality and safety of performing a U-turn.