Research on Train Tracking Interval of Urban Rail Transit under Communication Delay

The tracking interval between the two workshops is the main factor that affects the line passing capacity. This article focuses on the communication delay problem in the train-to-ground communication of the CBTC system used in rail transit, and obtains the constraint relationship between the communication delay and the train speed, and combines it with moving block Based on the characteristics of the tracking interval, a model of the wireless communication delay following the train tracking interval is established, and the influence of the wireless communication delay on the train tracking interval is simulated and analyzed. The relationship between the tracking interval and speed of the following vehicles with different delays is obtained.