The boy who lost the manhole cover in Taizhou cleverly set up a marker to remind him. What problems can the boy's actions avoid?

The boy's action can avoid the problem that people trample on the manhole cover unintentionally, and also avoid the problem that people crush the manhole cover while driving.

A little boy put up a striking sign on the manhole cover. The little boy's behavior makes people feel warm. Such eye-catching signs can avoid many problems.

For example, it can avoid the phenomenon that people can't see the manhole cover when driving, thus driving over the manhole cover, resulting in the lower limit of the car, and it can also avoid the situation that people accidentally step on the manhole cover and fall.

The little boy's actions can avoid potential safety hazards. When we were walking on the road, we found that some manhole covers were similar in color to the road surface. If some people have poor eyesight or myopia, they may not know the difference between the manhole cover and the road surface.

When they pass by, they may not be able to avoid the manhole cover. So many people may fall into the sewer when they pass by.

The little boy put up an eye-catching sign on the manhole cover, so that people can know that there is a manhole cover at a glance and avoid passing through it.

Little boy, his actions can prevent people from passing through the manhole cover while driving, leading to the lower limit of the car. Usually when riding an electric car or motorcycle, passing through the manhole cover may cause the vibration of the car. Because the height of the manhole cover is different from the height of the road surface, when you pass by that place, it may cause the lower limit of the car.

And if an eye-catching sign can be erected in that place, people will know that there is a manhole cover there. When you know there is a manhole cover, you will try to walk around it without causing the phenomenon of the lower limit of the car.

The little boy's behavior can prevent some people from stepping on the air. Some people have poor eyesight, so they may step empty when walking. But if a sign is set up there, people can see at a glance that there is a problem, and they will pay attention to avoiding it when walking, so it is not easy to step on the air.