Cause Analysis and Control Measures for Inaccurate ATO Parking Accuracy of Qingdao Metro Line 13
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 10
Abstract
Objective In order to solve the stop mark exceeding/failing problem of Qingdao Metro Line 13, it is necessary to deeply analyze the control principle of ATO (automatic train operation) parking and the factors affecting its accuracy, and formulate effective control measures accordingly. Method The principle of ATO parking accuracy control for Qingdao Metro Line 13 trains is briefly described. The causes of train stop mark exceeding/failing are analyzed from the aspects of signal system factors and vehicle system factors respectively. Optimization control measures for accurate parking are proposed. Result & Conclusion ① Signal system factors: by optimizing the speed measurement logic, balise layout and ATO algorithm, the train positioning and parking accuracy are improved; ② Vehicle system factors: through fine-tuning the braking conversion timing to match the signal system requirements, the train accurate parking is achieved. These optimization measures jointly improve the train parking accuracy and significantly enhance the operational efficiency.
Authors and Affiliations
Ping LYU, Chenggang NIU, Minggong XU
Research and Application of Train Communication Network Based on Time-sensitive Networking
Objective TCN (train communication networks) has complex topologies and requires high real-time transmission capabilities. Currently, train data transmission mainly relies on TRDP (train real-time data protocol) for carr...
Development and Application of Mechanical Shield Tail Clearance Measurement Device Based on Angle Sensor
Objective In view of the constant changes of shield tail clearance during shield or tunnel boring machine excavation process, to ensure construction safety, it is necessary to measure shield tail clearance in real-time....
On-line Flexible Marshalling and Coupling Operations in Different Scenarios
[Objective] To address the issues of uneven passenger flow distribution over time and space, there is a need to conduct research on flexible marshalling and coupling operations in different scenarios. [Method] The co...
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...
Development of Automatic Calculation Program for Passenger Flow Assignment in Urban Rail Transit Network Based on VISUM
[Objective] In view of the much repetitive work in the calculation process of passenger flow assignment in urban rail transit network, an automatic calculation program is developed on the basis of the research on the pas...