What is the function of the yellow dividing line in the middle of the road?

[DelLuna]

The yellow dotted line in the center of the road is an indicator marking. The yellow dotted line in the center of the road is mainly used to separate opposing traffic flows; if the center of the road has a yellow solid and dashed line, vehicles on the solid line side are prohibited from crossing the line or making left turns, while vehicles on the dashed line side are allowed to cross the line for overtaking or making left turns. Here is some knowledge about yellow lines: 1. Yellow dashed line at the roadside: A yellow dashed line at the roadside indicates that long-term parking is prohibited. Yellow lines are used to distinguish lanes in different directions, generally painted in the middle of the road, acting like a barrier that divides the road into two directions. 2. Double yellow dashed lines: Double yellow dashed lines indicate a tidal flow lane. A tidal flow lane refers to a lane that is opened on certain roads based on varying traffic conditions during peak hours, adjusting the number of lanes by changing the direction of lane lights to control the direction of traffic flow on the main road, thereby improving lane usage efficiency.