What do the three dashed lines on the highway mean?

[McAmelia]

Deceleration markings, used to warn drivers to slow down ahead, are typically placed at toll plaza areas, exit ramps, or other sections requiring reduced speed. Below is additional information: 1. Channelizing lines: These lines are commonly seen on both urban roads and highways, primarily guiding drivers through complex intersections. Vehicles must follow the designated path around channelizing lines without crossing or straddling them. Parking or making U-turns within these marked areas is strictly prohibited—doing so on highways is not only hazardous but also incurs penalty points and fines. 2. Following distance reference lines: Thick white parallel solid lines remind drivers to maintain safe distances, providing visual spacing cues when used with distance confirmation signs. They are often installed in overtaking zones, accident-prone sections, or other necessary locations. Highway distance markers include not only white zigzag lines but also semicircular and rectangular variants.