What is the difference between the white line and the yellow line on the road? Why do we need to split it into single-and-single-doubles?

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1. The yellow line is used to differentiate lanes in different directions. It is usually drawn in the middle of the road. It is like a quarantine belt that separates the road into two directions:
1. A single yellow line or dual yellow line is strictly prohibited as long as it is a solid line, such as overtaking, turning, and turning. When there is no special situation, the line should not be crossed.
2. No matter the single or double yellow lines, as long as they are dotted lines, you can overtake or turn around while ensuring security.
3. A single yellow line is generally used on a road within two-way 4 lanes (including bicycle lanes), and a double yellow line is generally used on a wide road surface.
4. If the dual-yellow line is solid, the other is dotted, and the other is on which side of the dotted line, the vehicle on that side can be crossed temporarily, such as overtaking or turning.

2. white lines are used to differentiate different lanes in the same direction.
1. the dotted line can be parallel and can be used to change lanes.
2. The solid line cannot be merged, and the lane cannot be changed at will.

 

In short, the yellow line is used to draw back and forth lanes.
The yellow dotted line is opposite to a car. You can turn or turn around on the yellow dotted line ..
The white solid line is used to divide lanes in the same direction, and the solid line is used to drive in the same direction.
The white dotted line is in the same direction as the dotted line, and can be crossed to another direction.