A Solution to Ensure Correctness of Movement Authority

Abstract

In the CBTC system, movement authority is the lifeline. Calculation error of movement authority can lead to vehicle destruction and cause enormous loss of life and property. Therefore, it is necessary to ensure correctness of movement authority for train use. This paper provides a solution to ensure the correctness of train movement authority. After calculating the movement authority for the train, the system uses a heterogeneous algorithm to re-check the obstacle information within the movement authority. Only when no obstacle information is found within the movement authority can the movement authority information be exported to the train. Otherwise, the system remains in safe status. This solution can effectively prevent the occurrence of major accidents.