What does the sawtooth lane line on the highway mean?

[Pluto]

Highway sawtooth lane lines are a type of deceleration marking, which can be divided into horizontal markings and vertical markings. Below is a partial introduction to deceleration markings: 1. Deceleration markings can be categorized into horizontal deceleration markings and vertical deceleration markings. These are white dashed lines set up in toll plaza areas, exit ramps, or other sections where vehicle deceleration is required. They come in forms such as single dashed lines, double dashed lines, and triple dashed lines, arranged perpendicular to the direction of travel. 2. The primary function of deceleration markings is to create a sense of visual narrowing of the lane, inducing a feeling of pressure on drivers, thereby prompting them to automatically reduce speed at locations requiring deceleration, such as curves or slopes.