Operation Control Method for Degraded Trains after Shanghai Rail Transit Lines 3 and 4 Signaling System Upgrade and Renovation
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 11
Abstract
Objective After the upgrade of Shanghai Rail Transit Lines 3 and 4 signaling systems, their functions are highly concentrated in the on-board train controller. In the event of on-board train controller failure leading to train degraded status, the operational capacity of the line will decrease significantly, requiring a safe and efficient withdrawal of degraded trains from service. Method The structural characteristics of TACS （train autonomous circumambulate system） equipment for Shanghai Rail Transit Lines 3 and 4 are presented, the operational scenarios for train degradation are analyzed, and the operation control methods applicable after train degradation based on equipment role are elaborated. Result & Conclusion After a train enters the degraded state, the wayside train controller will take over the resource management from trackside resource controller. Based on the operational tasks assigned by train scheduling, a back-up localization system is utilized to replace the on-board train manager for resource interaction with the trackside resource managers and other trains，with signal lights serving to direct train operation. This method maintains the tracking logic for train-to-train communication, and is suitable for line upgrades by avoiding to add equipment on trackside and reducing construction and maintenance costs.
Authors and Affiliations
Yongzheng LI
Keywords
Related Articles
- EP ID EP751179
- DOI 10.16037/j.1007-869x.2024.11.006
- Views 33
- Downloads 0
Urban Rail Transit Passenger Travel Characteristics Mining and Passenger Classification Based on Workplace-residence Relationship
Objective When mining travel characteristics from urban rail transit travel trajectory data, passenger travel activity patterns are found closely related to the stations near their residence and workplace. This is reflec...
Effect of High-performance Fiber Reinforcement Agent on Anti-slip Coating Properties for Urban Rail Transit Vehicles
［Objective］ Anti-slip coatings for urban rail transit vehicles are typically applied to the surfaces of objects being contacted, forming a high-friction anti-slip surface, which could enhance the surface roughness and...
Application of Lattice Technology in Defect Rectification for Waterproof Board Cutting Lining Concrete at High-speed RailwayTunnel Arch
Objective Many defects related to the lining of high -speed rail tunnels gradually become prominent with the increase of the high-speed rail construction completion years. The waterproof board cutting lining concrete is...
Analysis and Improvement of Pantograph Carbon Strip Abnormal Wear on Luoyang Metro Line 1
Objective During inspection, problems like the bad pantograph and catenary relation, pantograph-catenary arcing on the main line, burning points and serious wear on the pantograph carbon strip are detected since the tria...
Earth Pressure Calculation Method for Deep Foundation Pit Excavation in Chengdu Pebble Stratum Area
Objective The existing theoretical calculation method of earth pressure does not take into account the discrete characteristics of pebble stratum such as large porosity and loose structure, and the calculated results are...