Is U-turn allowed on a single solid line?

[LaMason]

U-turns are not allowed on single solid lines. Making a U-turn on a solid line is a traffic violation, regardless of whether it's a single or double solid line. According to Article 90 of the Road Traffic Safety Law, violators who disobey prohibited markings will be fined 200 yuan and receive 3 penalty points. Generally, on long roads, white solid lines are present in the middle section or before intersections. If the lines are yellow dashed or white dashed, U-turns are permitted. However, U-turns are strictly prohibited on any solid lines. Cases where U-turns are allowed: Intersections with U-turn signs: If there is a clear U-turn sign at an intersection, U-turns are permitted. If there is a U-turn traffic light, follow its instructions. If there is no traffic light, make a U-turn based on the specific situation, ensuring it does not obstruct other vehicles or pedestrians. Intersections without explicit no U-turn or no left-turn signs: U-turns are allowed if there are no explicit prohibitions. "No explicit prohibition" means the intersection lacks signs like "No U-turn," "No left-turn," or solid center lines. In such cases, U-turns are safely permitted. Yellow grid lines also allow U-turns: Yellow grid lines are no-parking zones marked at intersections prone to congestion due to temporary stops, important facility entrances, or other necessary locations. Parking (including waiting at traffic lights) on these grids is a violation. Although stopping is prohibited in yellow grid zones, U-turns are allowed as long as there are no central barriers. Yellow grid lines without barriers are equivalent to "U-turn permitted." Intersections with U-turn traffic lights: This is straightforward—if there is a U-turn traffic light, proceed only when the light is green. When both no left-turn and U-turn permitted signs appear: U-turns are allowed, but left turns are prohibited. Note that "No U-turn" is not the same as "No left-turn." Points to note when making U-turns at intersections: Observe road markings: If the line is solid, U-turns are prohibited under any circumstances. Continue driving to find a suitable U-turn location. If there is a "No left-turn" sign ahead, U-turns are also prohibited at that intersection, even if "No U-turn" is not mentioned, because U-turns inherently involve left turns. U-turns must be made from the innermost left-turn lane. If you are in the second left-turn lane, U-turns are not permitted at that intersection. Always yield to straight-moving vehicles when making a U-turn. Proceed only if it does not interfere with their normal flow; otherwise, you will bear full responsibility for any accidents. Near intersection stop lines, lanes often have guiding arrows. The leftmost lane may not always have a left-turn arrow. If it has a straight arrow, U-turns are prohibited even without explicit "No U-turn" signs. U-turns must not be made on crosswalks, as this is also a traffic violation.