Why draw a circle outside the word "demolition" written on the demolition room?

With the continuous development of society, more and more cities begin to make new plans. As we all know, in the early years, China's economic situation was backward and there was no reasonable urban construction plan. It can be said that the distribution is uneven and it is a mess. Therefore, many cities have started new construction work. In this process, many buildings participated in the planning and will be demolished later. I believe everyone is familiar with the relocated households, which is the best way to get rich overnight. Before the demolition work begins, a big word "demolition" will be written on the exterior wall of the house, and a circle will be drawn outdoors.

The most widely used function is security warning. In the process of demolition, the house may collapse. If passers-by don't pay attention to this situation, they will be easily hurt by these construction wastes. To avoid this, the word "demolition" was written on the wall. Draw a circle to attract attention. As we all know, at first glance, writing a word on the wall may be graffiti, which can relax the mood. But after drawing a circle, people will unconsciously look at the contents in the circle, so people will also pay more attention, thus reducing the occurrence of accidents.

The second point is to emphasize and protect. Naughty children can easily fool a word "demolition". If others add something else, the warning function of the word "demolition" will change. For example, if a person makes a boring change to "demolition", then the warning slogan will become popular on the Internet, and naturally it will not work. This circle has played a role of emphasis and protection.

Not only that, this circle also hopes that the demolition work will be successfully completed. Generally speaking, demolition is caused by urban construction, so the workload is very large and it is easy to lead to safety accidents. The circle also means full, indicating that the staff hope that the demolition work can be successfully completed. To sum up, all this is to successfully complete the demolition work.