Can You Make a U-Turn in a Left-Turn Lane?

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Some left-turn lanes allow U-turns while others do not, primarily determined by the signage at the intersection. If there is a dashed line between the left-turn stop line and the crosswalk, you may turn left early, but whether you can turn left on a red light depends on the presence of guardrails or green islands. U-turn rules at traffic lights: 1. No U-turns are allowed if there is no left-turn lane before the traffic light; 2. U-turns are not permitted on the crosswalk at a traffic light; you must pass the crosswalk before making a U-turn; 3. If there is a clear sign prohibiting U-turns or left turns at the traffic light intersection, U-turns are not allowed at any time; 4. U-turns are not permitted if the center line of the road at the traffic light intersection is a double solid yellow line; if it is a double yellow line, vehicles on the dashed side can make a U-turn, while vehicles on the solid side cannot; 5. If there is a yellow grid line at the traffic light intersection, U-turns are allowed, but vehicles must not stop on the yellow grid line; 6. If there is a U-turn sign or a U-turn signal, you must wait for the green light before making a U-turn; 7. If there is no U-turn signal but there is a left-turn signal, you must wait for the green light in the left-turn lane before making a U-turn.