Can You Make a U-Turn on Double Yellow Dashed Lines?

1 Answers
Lance
07/29/25 4:28pm
Under safe conditions without obstructing traffic, left turns are permitted on double yellow lines on main roads, but U-turns are not allowed. Here is some relevant information about double yellow dashed lines: 1. Double yellow dashed lines indicate tidal flow lanes. Tidal flow lanes are experimental lanes on certain roads that adjust the direction of traffic flow based on varying traffic volumes during peak hours, using lane signal lights to change the direction of travel on main roads, thereby increasing lane efficiency. 2. Traffic police can use handheld remote controls to adjust the direction of variable-direction lanes according to real-time traffic conditions. If an intersection has clear traffic patterns, police can pre-program the timing for changing lane directions in the absence of emergencies, allowing automatic adjustments. Additionally, control centers can monitor intersection conditions and remotely adjust signage as needed. For intersections with computer-linked signal systems, automatic recognition and adjustment systems can also be employed.
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