A "U-turn" is a driving maneuver where a vehicle makes a 180-degree turn to go in the opposite direction. This action is often performed at intersections or on roads where it is legally permitted. U-turns can be useful for drivers who need to change their route quickly or return to a previous location. In many places, specific traffic signs indicate whether U-turns are allowed. Drivers must ensure that the maneuver is safe, checking for oncoming traffic and pedestrians. Making a U-turn in a busy area can be challenging, so it's important to follow local traffic laws and regulations to avoid accidents.