The white dotted line is the distance confirmation line. There are two groups of white dotted lines in front of the ground. This sign line is called the white broken line distance confirmation line, which is generally set on the road section with certain driving risks. When you see such a marking, you should take the initiative to judge the distance from the car in front and keep it within a safe distance.

This broken line is divided into two groups, each group is 50 meters apart. If you need to keep a distance of 100 meters from the vehicle in front, the method is simple. When your vehicle just reaches the broken line, watch the car in front of you just cross a set of broken lines and press it on the second set of broken lines in front of you. At this time, the distance is just 100 meter.

There are three kinds of distance confirmation lines:

1. White polyline distance confirmation line: the total width of the white polyline distance confirmation line is 300cm, and the line width is 40cm or 45cm. Starting from the confirmation base point of 0m, set a line every 5m and two lines every 50m. Five groups can be set repeatedly, or multiple groups can be set according to the site.

2. White semicircle distance confirmation line: The hemisphere radius of the white semicircle distance confirmation line is 30cm, and the spacing is 50m. Generally, it is set continuously in a certain road section;

3. Expressway distance confirmation sign: used in conjunction with the distance confirmation sign, it is located in the section where overtaking is frequent and accidents are prone to occur or other necessary sections. The function of expressway distance confirmation marking is that when the driver sees this marking, he should keep a safe distance from the vehicle in front to avoid traffic accidents. Million car purchase subsidy