Basic and Alternative Route Determination in Interlocking Table and Conflicting Signal Verification for Urban Rail Transit Depot
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 3
Abstract
[Objective] As the standard for debugging, opening, acceptance, and subsequent use of computer interlocking devices, the interlocking table plays a crucial role in improving operation efficiency, extending equipment lifespan, and ensuring driving safety in urban rail transit depot. [Method] With a non-ATC (automatic train control) urban rail transit depot in Hangzhou as the research object, the principle and method of determining basic and alternative routes are introduced. The above method is used to seek the conflicting signals in five selected routes. By optimizing the conflicting signal conditions, the interlocking table is simplified, and the patterns of conflicting signals within the interlocking table are summarized. [Result & Conclusion] In the interlocking table, conflicting signals within one route are categorized into five types: the first type is the conflicting signal between the starting and ending buttons in the route; the second is that located in front of the starting button and in the same direction as the starting signaler; the third is that located behind the ending button and in the opposite direction of the starting signaler; the fourth is that when the entrance section signaler and the main departure signaler are juxtaposed and function as the starting signaler in the entrance/exit section; the fifth is that on adjacent track sections in the route. Through the proposed method, the conflicting signals in route can be identified rapidly and accurately, avoiding the miss of conflicting signals or conflicting signal conditions. Through optimizing conflicting signal conditions by finding critical switches, the compilation of the interlocking table is simplified and the design quality of the interlocking table for the depot in urban rail transit is improved.
Authors and Affiliations
Chunchuan FU
Optimization of CBTC System Protection Section Trigger Strategy
Objective The CBTC (communication-based train control) system on urban rail transit lines has certain limitations in specific scenarios: when there are multiple protection sections along a route, the interlocking system...
Dynamic Inspection Technology of Tunnel Deformation Based on Onboard LIDAR
Objective In view of the poor real-time performance, high cost and low efficiency of tunnel deformation monitoring methods in China, it is necessary to effectively improve the efficiency of tunnel deformation monitoring....
Time Synchronization Scheme for Train FAO Signaling System
[Objective] Time synchronization is the foundation for ensuring the coordinated linkage of sub-systems within the signaling system, which directly affects the punctuality and operational safety of trains, serving as the...
Analysis and Application of Stratum Support Stress Under Action of Foundation Pit Retaining Pile
[Objective] Foundation pit retaining piles play a vital role in building construction. In order to ensure the safety and stability of foundation pit construction, it is necessary to make in-depth study on the stress dist...
Simulation Analysis on the Mud Film Stability for Urban Slurry Shield Tunnel
Objective As the sand layer located at the launching end of the slurry shield section is connected with seawater during the tunnel construction of Xiamen Metro Line 3, accidents like water and mud gushing, ground collaps...