The existence of these signs will undoubtedly bring great convenience to people's lives.
In the city center of many cities, you can see dense types of orientation signs everywhere: directions, signs, subways, sightseeing, and so on. The existence of these signs has undoubtedly brought great convenience to people's lives, but with the changes in the scale and structure of the city, these existing guidance systems have to face the possibility of renovation, addition, or even overthrow after a few years. Because these static signs will not be able to meet the rapidly changing spatial information: insufficient information, inaccurate spatial structure, conflict between old and new content and other problems, another phenomenon caused by this is that a large number of useless signs will occupy limited public space. Space, but also affects the urban landscape, the above problems are destined to be limited and short-lived, because it lacks the updateability and adaptability of information.