Where there are many people, the traffic is blocked, there are many buses, there are many cars, the car does not let people, people do not let the car, everyone has a big thing to do urgently, not only in Guangzhou, I believe that in many cities, the traffic jams caused by buses and cars are commonplace. This year, the three-dimensional express bus project under discussion in Mentougou, Beijing, will become the world's most environmentally-friendly and passenger-carrying bus system. This innovative idea of allowing cars to freely walk through the bottom of the bus comes from the hands of Song Youzhou, a king of invention with a primary school education. This concept is absolutely no less than the design of the flying hub in the movie, because it will become a reality to serve the public. In the following video, Mr. Song explains the express bus system in detail.