Can You Make a U-Turn Over Double White Dashed Lines?

[DiJaxon]

Double white dashed lines allow U-turns. Roads with yellow single dashed lines, yellow double dashed lines, white single dashed lines, or white double dashed lines all permit U-turns, turns, and overtaking—provided safety is ensured and normal traffic flow is not obstructed. Other scenarios permitting U-turns include: Presence of U-turn traffic lights or signs: At intersections with dedicated U-turn traffic signals, U-turns are allowed when the indicator is green. If U-turn signs exist at the intersection or U-turn markings appear on the lane, executing a U-turn is permitted after ensuring safety for all road users. No U-turn signs but left turns allowed (absence of no U-turn signage): Vehicles may U-turn at intersections permitting left turns where no prohibitory U-turn signs/markings exist. Note that drivers must follow left-turn signal indications without disrupting other vehicles. For intersections with left-turn waiting zones, enter the waiting area during the straight green light, then complete the U-turn when the left-turn signal turns green. U-turns permitted at dashed lines: Both white and yellow dashed lines authorize U-turns. For dual yellow lines (one solid, one dashed), U-turns are allowed only from the dashed-line side when safe; solid lines prohibit U-turns. At intersections with such markings, U-turns may initiate from the dashed side without crossing the stop line ahead.

[VonAnderson]

I've been driving for over a decade. These double white dashed lines mainly separate same-direction lanes. You can't casually cross the middle section of white dashed lines to make a U-turn. If the double white dashed lines extend to the stop line at an intersection, and there's no no-U-turn sign, you can make a U-turn when the light is green—but remember to signal in advance and check oncoming traffic before turning. Special reminder: never make a U-turn directly across double white dashed lines in the middle of the road—that counts as crossing a solid line violation. A friend of mine got ticketed for that. If you really need to turn around mid-section, it's safer to drive a few hundred meters further to find a dashed line area or intersection.

[Ivy]

Last week, I just finished invigilating the subject one exam for students and happened to cover this knowledge point. Double white dashed lines usually appear in the middle of road sections to separate same-direction lanes, and they definitely don't mean you can make a U-turn across them. If you recklessly make a U-turn when you see these lines on the road, you'll lose 3 points and 200 yuan. However, the double white dashed lines before the stop line at an intersection are an exception - you can make a U-turn when there's no prohibition sign, but you must pay attention to three points: only turn when the light is green, don't affect straight-going vehicles, and avoid the zebra crossing area. Some intersections may have additional no-U-turn signs, which take precedence over road markings.

[SanElena]

Double white dashed lines are categorized as lane division markings in the 'Road Traffic Law,' designed to guide same-direction traffic flow rather than permit turns. Many mistakenly treat white dashed lines as universal passage lines, which can lead to consequences. Personal experience has taught me: U-turns are only allowed where there are dashed lines beneath traffic lights at intersections and no no-U-turn signs. The dashed lines in the middle of roads, like those in front of banks, are only for lane changes, not crossing. Extra caution is needed where temporary double white dashed lines are painted during road construction—it's best to avoid these temporary markings altogether.

[VonHector]

Last year, I learned this lesson the hard way under the Huanghuayuan Bridge in Chongqing. At the time, I saw double white dashed lines on the ground and immediately made a U-turn, only to miss the 'No U-turn' sign overhead. The traffic police clearly explained: double white dashed lines are not permission lines for U-turns, especially near tunnel exits and bus stops—even if there are dashed lines, making a U-turn can still result in a fine. The safe operating procedure should be: move to the left lane in advance → check the traffic lights at the intersection → confirm there are no prohibition signs → yield to pedestrians and then proceed quickly. The emergence of shared bikes has increased the risks of U-turns, requiring even more caution.

[LeLyla]

In practice, it depends on where the lines are. When encountering double white dashed lines before the stop line at an intersection, they function the same as single dashed lines—you can make a U-turn after confirming it's safe. But here's the key point: double white dashed lines in the middle of a road section strictly prohibit U-turns, even if there are no cars around. Last year's updated traffic regulations also clarified that U-turns are prohibited near school entrances regardless of road markings. It's advisable to develop a habit: before attempting a U-turn, first check if there's a red prohibition light in the signal group, then look for roadside signs, and finally observe the camera positions. If you're unsure at an intersection, following a taxi ahead is usually a safe bet.