Recently, the terminal message of Beijing Daxing Airport has received widespread praise from passengers for its simplicity, directness, and Beijing style. The passenger arrived at Daxing Airport by subway and looked up to see a row of large letters hanging above their heads: "Let me tell you a secret: domestic flight check-in and security check can be done on this floor without going upstairs." There was also a large arrow next to it. The signboard not only has a large font size, but also emphasizes the key content in red and underlined like a primary school student taking notes. In addition, various child friendly audio and "rambling" style directional signs such as "Look here for transit passengers", "This is the west exit on the second floor", "You are currently on the third floor, that's right! No matter which boarding gate you go to, you have to go downstairs first" make people feel warm. Currently, many transportation hubs such as airports, train stations, and subway stations are generally built on a large scale and have multiple functional areas due to long-term planning and design needs such as passenger throughput reservation and the convergence of multiple transportation modes. This often requires infrequent travelers to spend some time finding the functional areas they need in transportation hubs. As a public infrastructure, the friendliness of transportation hubs towards passengers is an important measure. Providing good route guidance and optimizing the effectiveness of signage should be an important part of serving large transportation hubs. The common signs we see are mostly in written language. In daily life, some passengers may have tight flight schedules due to various reasons, and when faced with written language style signs, they may inevitably encounter difficulties in understanding the "shell". Therefore, it may be better to make the guidance signs more clear at a glance. Obviously, simple and clear expressions such as' please go to the third floor for processing ',' do not go upstairs', 'handle here' are more likely to help passengers travel efficiently and smoothly. How to provide friendly services for public infrastructure construction? The erhua audio version and "rambling" style signage at Beijing Daxing Airport this time is a beneficial demonstration. Traditional warning signs, with their small changes, have a disruptive effect and are highly favored by tourists, indicating that urban governance should simplify complexity and adapt to local conditions. This colloquial design of guidance signs not only brings passengers closer together, but also embodies the humanistic concept in the design, operation, and maintenance of public facilities such as transportation hubs. (New Society)