What are the rules for making a U-turn with a car?

[DelJames]

There are many rules regarding making a U-turn with a car. Here is a detailed introduction: 1. Situations where U-turns are allowed: The main situations where U-turns are allowed include the following: yellow grid areas; intersections with U-turn signals; intersections without U-turn signals but with left-turn signals; intersections without 'No U-turn' signs are considered to allow U-turns. 2. Situations where U-turns are not allowed: The main situations where U-turns are not allowed include the following: intersections where left turns are prohibited; crosswalk areas; intersections with two left-turn lanes where the middle lane is not allowed to make a U-turn; intersections with 'No U-turn' signs; the leftmost lane with only a straight arrow; solid single yellow lines where U-turns are prohibited; sections of the road where U-turns are not allowed.