Research On System Capacity Coordination And Optimization Of Houma North Marshalling Yard

With the continuous improvement of Chinese railway network layout and the continuous deepening of the reform of transport enterprises,the railway transport organization has been making continuous progress towards the direction of marketization.Driven by the policy of transport structure adjustment in the battle of blue sky protection,more and more people have recognized the positive significance of efficient railway transport for the sound development of social economy.The railway hub is the link between the main railway lines and the complicated branch lines.It plays a dominant role in the road network and plays a key role in the overall transport efficiency.Based on the coupling coordination degree model,this paper studies and evaluates the coordination and optimization of the second-level four-field system capacity of Houma North marshaling station,and proposes the coordination and optimization measures.In this paper,the existing results at home and abroad are firstly sorted out.In view of the more complex characteristics of traffic flow exchange in each yard of the second-level four-field marshalling-station,the traditional coordination degree model is not applicable to the marshalling-station studied.Based on the influence of unbalanced traffic flow,the influencing factors of the utilization of the capacity of each yard are analyzed.Secondly,the distribution fitting verification of the arrival train law in Houma North Station is conducted through the investigation,and the distribution is determined to be subject to the Erlang distribution.Based on traffic flow regularity to reach to 3 h time divide the factors affecting the consolidation,the index system of influence factors for coordinate ability evaluation system,using the entropy value method to determine the index weight,then get each subsystem and system coordination degree of the marshalling station,and compared with the actual operation to verify the rationality of the evaluation system.Distribute subsystem,the author of this paper as ability to coordinate the bottleneck link of marshalling station system,from internal yard capacity expansion of the use of reconstruction,to the external traffic locomotive cohesion belonging to the implementation of the optimization countermeasures,such as effective in relieving the map of Houma North station and distribute limited link in subsystem coordination degree is not high,indirectly promote the ability of the entire station system overallcoordination level,for the same type of the whole railway network system capacity coordination optimization to provide the reference of the marshalling station...