Crossing control method and system for urban rail transit

Abstract

The invention relates to a crossing control method for an urban rail transit. The method comprises the steps of 1) when a train is close to a crossing, an ATS subsystem sending a setup instruction of entering a path through the crossing to a CI subsystem; 2) after the crossing occupied by the train is judged to be close to a section and the condition that a delay timer counts to zero, sending a train approaching message; 3) closing a road annunciator, meanwhile prompting a crossing terminal to close a rail, and lowering the rail after the crossing terminal confirms that the crossing is clear; 4) lowering the rail and sending a closing message to the CI subsystem; 5) automatically starting a crossing protection annunciator; 6) authorizing the train to pass the crossing after an opening message from the crossing protection annunciator; 7) after the train passes the crossing, removing the train approaching message and sending to the crossing control subsystem; and 8) lifting the rail. Compared with the prior art, the crossing control method for the urban rail transit has the advantages of precisely locating the position of the approaching triggering informing point, optimizing the crossing occupation time of the rail transit train, automatically managing the crossing informing messages and the like.

Description

technical field [0001] The invention relates to urban rail transit, in particular to a crossing control method and system for urban rail transit. Background technique [0002] Urban rail transit (Rail Transit) generally adopts a fully enclosed method, which has the characteristics of large capacity, fast speed, safety, and punctuality. However, some cities are limited by geographical environment and construction funds, and some areas of urban rail lines will cross roads. In this case, there is a level crossing. A level crossing is a plane intersection of two transportation systems with different dynamics, different braking distances, and different traffic rules. It is the same coordinate point on a plane. For resource conflict occupation, different time slots can be assigned to the two transportation systems during specific implementation, but the division of time slots is not a simple division process. Since the two transportation systems of road and rail are quite differe...

AI Technical Summary

Problems solved by technology

This scheme has relatively high requirements on the length of the approaching section (an additional track section needs to be set up near the crossing), which increases the project investment cost, and when the rail transit operation density is high, the road traffic will still be greatly affected

[0006] Therefore, no matter which control method is adopted, it is difficult to automatically and efficiently allocate level crossing resources

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