I contacted Dieter Ramsey's biography and mentioned the reason why he did not participate in automobile design, that is, the concept of automobile was defined in a wrong place by the United States at the very beginning. He was not willing to do more exploration in the wrong direction and worried that more hidden dangers would be caused by the traffic problems. I hope to redefine the concept of public transport system through my own thinking and summary, according to the current situation and development trend of transportation and city, and find a more suitable public transport system for the current and future urban development. The design intention of the bus is to avoid the conventional road and carry passengers through the sky track without waiting and stagnation. The terminal models the daily passenger flow of each station, and controls the speed, departure and arrival according to the data model every day, which greatly reduces the waiting time of passengers. The window is made of silver bromide and copper oxide. The glass will darken automatically under sunlight. Real time display of holographic route map, as well as today's temperature, time, etc. In consideration of efficient passenger transport in short distance, we should make full use of the interior space, cancel most of the conventional seats, and use cushions and tables that are flush with the buttocks of the human body. The top roller device is equipped with a steel wire rope storage cabin, which can be lowered to a position flush with the road to ensure the safe evacuation of passengers when the bus stops operation due to some irresistible factors. The second to fourth floors of high-rise buildings will be considered as bus stops. Relying on the national comprehensive three-dimensional transportation network policy, improve the future urban public transportation network, and provide more convenient travel solutions for urban office workers.