A capacity analysis method suitable for high-speed railway

Abstract

The present invention relates to a method for analyzing the operation capacity of high-speed railways, which specifically includes: A. data preparation for four aspects of line infrastructure, train model, signal system and operation organization parameters; B. according to different route types, perform The division of partitions, specifically divided into five types: pick-up partition, departure partition, station lane partition, interval partition and line partition; C. Based on the signal system workflow and combining different operation scenarios, establish CTCS-2 level and CTCS-3 Blocking time models of different types of partitions under different grades; D. Capability analysis of bottleneck links in high-speed railway operation: Carry out capacity analysis on convergent line stations and stations that may have bottlenecks from the two indicators of the most unfavorable train interval and the most unfavorable average minimum train interval ; E. Interval-station integration is carried out capacity analysis, and the most unfavorable interval-station integrated operation plan is obtained.

Description

technical field [0001] The present invention relates to the technical field of rail traffic control, in particular to a capability analysis method suitable for high-speed railways under CTCS-2 and CTCS-3 levels, and in particular to a high-speed railway bottleneck link capability under CTCS-2 and CTCS-3 levels Analysis method of section-station integration capability. Background technique [0002] The Chinese Train Control System (CTCS) is the key technology and core equipment to ensure the safety of high-speed railways and improve the transport capacity. The construction and operation have played an important role. Both of them use the entrance of the block zone occupied in front as the end point of the traffic permit, adopt the quasi-moving block method, and the train occupancy check is realized by the track circuit. The information transmission characteristics of the CTCS-2 train operation control system are that the train occupancy information is transmitted through the...

AI Technical Summary

Problems solved by technology

[0005] (1) There are many receiving / departing lanes at the station and there are more than one approaching roads for the same receiving / departing lane. There are often more than 20 receiving and departing routes at large stations, and there are many types of vehicles running on the lines. The calculation workload will be extremely heavy for the design interval of each vehicle under various possible route combinations;

[0006] (2) The arrangement of the incoming / departing lanes at the station is highly random, and the entering order of the lanes cannot be specified, so the operation diagram scheme cannot fix the entering order of the lanes, and only the various possible operation diagrams under various possible vehicle combinations Under the scheme, the average minimum receiving and departing intervals meet the design interval, so as to ensure that the design interval meets

The formula calculation method cannot realize the capacity analysis under all operation chart connection / departure schemes;

[0007] (3) The influence of the vehicle control model of the train overspeed protection system and the working process of the signal system on the ability is not considered, resulting in an excessive deviation between the actual ability and the theoretical ability;

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