Research On The Coordination Of Capacity Between Lines And State Within The Railway Terminal Of Huaihua

The coordination between various subsystems within the railway hub（especially the coordination of the point and line capacity）,an important part of the road network system,directly affects the transportation efficiency of the hub itself and its transportation capacity in the whole road network,so it is of great applied research value to analyze and quantify the influencing factors for the coordination between the capabilities within the railway hub.Based on the theory of systems engineering,this paper mainly study the existing ordinary speed railway hub and analyzes the influencing factors of the coordination of railway hub point line capacity composed of Huaihua Station,Huaihua West Station,Huaihua East Station and surrounding small stations,constructs a coupling coordination degree model to evaluate the capacity of hub points and lines,and proposes improvement measures.Firstly,the existing research results of relevant experts and scholars at home and abroad are sorted out.Based on the system theory,the railway hub is divided into passenger stations,freight stations,marshalling yards,high-speed railway stations,locomotive depots and other systems,and the connotation of point-line capacity coordination of the railway system is discussed.Analyzed.It mainly includes the coordination of the internal systems of the stations in the hub,the coordination of the systems between the stations in the hub and the stations（the interval capacity of the hub）,and the coordination between the hub and its connecting lines.Secondly,it mainly analyzes the impact of unbalanced transportation on the pointline system of the railway junction.Taking the Huaihua railway junction as the research object,the non-special period is selected as a continuous 3d period,and the operation period is divided into intensive,ordinary and idle periods.Based on on-site data such as research,computer monitoring and playback,and train operation diagrams,the distribution fitting test of the arrival law of trains at the Huaihua Railway Hub is carried out,and it is determined that it approximately obeys the negative exponential distribution.Calculate the capacity utilization degree of each station in the hub,build the Huaihua Railway point-line capacity coordination degree model based on the coupling coordination theory,and compare the rationality of the model based on the actual operation.Finally,in view of the problems of insufficient utilization of Huaihua railway hub equipment,lack of equipment in some existing stations,and unreasonable traffic organization,optimization and adjustment measures are put forward to improve the degree of coordination between point and line capacity of Huaihua railway hub.As a typical case,it can provide a reference for the coordinated utilization of the national comprehensive railway hub capacity.