Signaling System Retrofit and Reverse-connection Scheme for Shanghai Rail Transit Line 13 Beidi Road Depot
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 11
Abstract
Objective Beidi Road Depot of Shanghai Rail Transit Line 13 is undergoing an upgrade from a conventional interlocking system to CBTC (communication-based train control) system. This upgrade is characterized by a short nighttime commissioning period, numerous reverse-connection equipment, and stringent safety requirements. To meet the demands of signaling system retrofit and commissioning, it is essential to explore a suitable reverse-connecting scheme. Method A detailed reverse-connection scheme for signal machine, axle counter device, turnout switch machine, and communication network equipment is provided, focusing on the reverse-connection processes for reusable turnout switch machines on existing lines, indoor communication network devices, and trackside wireless access points. Result & Conclusion During non-commissioning periods, all newly added train and shunting signal machines and axle counter devices must be powered down. The railway signal AX series relays are used as a reversing device for large DC turnouts. SDH (synchronous digital hierarchy) equipment cannot be removed directly. The newly installed industrial Ethernet switch machine can only be integrated as a subnet device into the backbone network, maintaining its connection until the completion of the SDH network retrofit. And then the industrial Ethernet switch machines are connected to the retrofitted mainline communication network. The existing trackside AP (access point) devices can be connected in batches with the new signal rooms to avoid a complete simultaneous cutover, thus reducing construction difficulty and risk.
Authors and Affiliations
Haiping CHU, Kehan SUN
Keywords
Related Articles
- EP ID EP751196
- DOI 10.16037/j.1007-869x.2024.11.023
- Views 42
- Downloads 0
Digital Twin Simulation System of Rail Transit Vehicle Based on Virtual Reality
[Objective] In order to improve the visualization and interactivity of the vehicle simulation system in rail transit, a digital twin simulation platform of rail transit vehicle is built based on VR (virtual reality) tech...
Inbound Passenger Flow Prediction of Spatio-temporal Graph Convolutional Neural Network for Urban Rail Transit Based on Spatio-temporal Correlation
Objective Accurate short term passenger flow prediction is of great significance to improve the operation and management efficiency of the ultra-large scale of urban rail transit network. However, the current research on...
Problems and Optimization Suggestions for Metro Interval Evacuation Design under Flood Conditions
Objective Evacuation in metro interval under flood conditions is often overlooked in metro engineering design. Besides, currently there are no industry standards for such scenarios. Attention should be paid to this issue...
Construction and Application of Index System for Safety Effectiveness Evaluation of Urban Rail Transit Line Maintenance Construction
Objective At present, there are relatively few studies on the safety assessment of maintenance and construction of urban rail transit operation lines. In order to reduce the operation safety risk of urban rail transit li...
Construction and Operation Development of Low-Capacity Urban Rail Transit System
［Objective］ With the advantages of diverse functional positioning, flexible line layout, economic and environmental protection, low-carbon, etc., the low-capacity urban rail transit system has become an important part...