Bicycles should be followed one by one, and there can be deviations in the front-to-back alignment queue. The deviation distance is generally 20-80 cm. It is not a swarm of people chasing each other forward in a wide lane. Especially at intersections, it is necessary to be able to let others predict the trajectory of each bicycle. Because as long as there is a dynamic traffic flow and the movement has a continuous speed, the difference in behavior between people will be amplified by speed, and people's judgment ability and ability to deal with danger will be challenged. Interactions between people must be advanced, and traffic control measures must be used to prompt, control and actively guide. The necessary technical elements for the operation of high-speed dynamic traffic flow cannot be ignored because the absolute speed capacity of bicycles is lower than that of motor vehicles, the model is smaller than that of motor vehicles, the quality is small and the protection is weak. The spacing between vehicles can be reduced, and the width of lanes can be narrowed, but neither can be without, let alone give up control over riding behavior. The complexity of human interaction cannot be ignored, especially the order and control needs of different speeds of traffic flow sharing road space.

The first thing to be corrected in this regard is the width of bicycle lanes, especially the width of bicycle lanes before entering the intersection area and preparing to complete the interweaving operation with the flow of motor vehicles.