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Why are buildings not allowed to display building signs?

On the one hand, it will cause urban visual pollution and cause strong interference to drivers and pedestrians.

Secondly, due to weather conditions such as heavy rain and strong winds, it may fall and injure pedestrians.

Three aspects, if you hang on, I want to hang on, but eventually everyone hangs on, and everything will be chaos.

Fourth aspect, repair and maintenance are difficult, and sometimes they will shine at night. However, if something goes wrong, some companies will not repair them in time, and there will be a lot of ambiguities and jokes about fonts, which will have a bad impact on society.

Fifth, hanging building signs is actually a means of advertising. Nowadays, there are many types of online media, and you can promote it through other media.