Rails are an important part of railways and mainly serve the following functions:
1. Support and guide the train. The load capacity and speed of trains are very high. In order to ensure safe travel, a solid and stable foundation is required, and rails are this foundation.
2. Share the train load. Steel rails can share the load of trains, ensure smooth running of trains, and avoid wear and tear on the roadbed.
3. During high-speed driving, the rails also play a role in shock absorption and buffering. Since the rails ensure the stability of the train, the vibrations that occur during driving will be absorbed by the rails, reducing the impact on the car body and personnel, and improving the safety and comfort of operation.