What is the sign of a narrow road?

There is a triangular box outside the narrow road sign, with a vertical line on the left and a line from wide to narrow on the right. The upper part is divided into narrow roads, and the lower part is divided into wide roads. The color of the line is black, and the color of the triangle box outside is red. Narrow roads are prone to traffic accidents. After encountering a narrow road sign, it proves that the road ahead will become narrower. If the vehicle does not slow down, it is very easy to collide with the target vehicle, causing danger. Therefore, when encountering a narrow road sign on the road, the vehicle must slow down and be ready to stop at any time.

Classification of narrow road signs:

1. Narrowing on both sides is used to warn vehicle drivers to pay attention to the narrowing of the roadway or road ahead, and to slow down and avoid oncoming vehicles. Narrowing on both sides of the lane mainly refers to the road that narrows symmetrically along the road center line. This sign is set in front of the starting point of the section where the width of the two-lane road surface is reduced to less than 6 meters.

2. The narrowing of the right side is used to warn the driver of the vehicle to pay attention to the narrowing of the right side of the roadway or road ahead and slow down to avoid oncoming vehicles. This sign is set in front of the starting point of the section where the width of the two-lane road surface is reduced to less than 6 meters.

3. The narrowing of the left side is used to warn the driver of the vehicle to pay attention to the narrowing of the left side of the roadway or road ahead and slow down to avoid oncoming vehicles. This sign is set in front of the starting point of the section where the width of the two-lane road surface is reduced to less than 6 meters.