As shown in the picture, what does the three-color line in the middle of the road mean? thank you

This is the main tourist route and has no special significance.

Liyang city rural tourist highway was built on 20 17, with a total mileage of 365km. With the theme of "driving freely and enjoying Liyang", liyang city will focus on "Three Mountains (Nanshan, Cao Shan and Wawushan) and Two Lakes (Tianmu Lake and Changdang Lake)", connecting the main urban attractions with rural tourist attractions, and building a 300-kilometer "Liyang 1 Tourist Highway".

Extended data:

In road traffic signs, there are two kinds of no parking signs:

1. No long-term parking line (yellow dotted line)

(1) is usually painted on the front and top of kerbs. Roads without stones can be painted on the road surface.

(2) It is forbidden to park vehicles on the roadside for a long time.

(3) Temporary parking of vehicles (such as loading and unloading goods, people getting on and off, etc.). ) is usually allowed.

2. No parking line (solid yellow line)

(1) is usually painted on the front and top of kerbs. Roads without stones can be painted on the road surface.

(2) No vehicles are allowed to park on the roadside.

References:

Baidu encyclopedia-road traffic marking

People's Network-Take a walk to build a 300km "1 tourist highway" in Liyang, Changzhou.