Problems and Solutions Caused by Different Types of Track Circuits.

When there are asymmetric high-voltage pulse track circuit and 25 Hz phase-sensitive track circuit in the main line of the station at the same time, due to the inconsistent time characteristics of the two track circuit systems, there are phenomena of missing unlocking, train loss and code loss in the track section during single locomotive operation, causing interference to normal train operation. By analyzing the time characteristics of the two track circuit systems in detail, this paper analyzes three operation fault scenarios, and gives different solutions for each scenario, which has certain guiding significance for future engineering design. [ABSTRACT FROM AUTHOR]