Analysis And Coordination Of Marshalling Station Capacity On Railway Freight Organization Reform

Marshalling station, the basic unit of railway freight transportation system, is also an important part of it. The performance of marshalling station directly relates to transportation efficiency and service quality. In the reform of railway freight organization, new requirements for marshalling station operation has been put forward that it needs to recalculate the adaptive capability of marshalling station, as well as to reconfigure the layout according to the traffic flow feature in order to meet the demands of the new situation.Chengdu North Marshalling Station, Chengdu, Sichuan province, is the main distributing center of freight traffic flow in southwest China, so it plays an important role in the railway network. In the background of freight organization reform, the researcher chooses Chengdu North Marshalling Yard to be the research object, making the capability analysis and doing coordinate research of the station. The researching procedures and substances are as followings:First of all, the researcher gives an introduction of the marshalling station from aspects of equipment configuration, traffic condition, structure, influencing factors as well as the coordination ability, based on which the researcher analyzes the operation capability and coordination ability of the marshalling station. Second, in this paper, the researcher concludes the main characteristics of railway freight organization reform, and analyzes its influences on traffic structure and capacity adaptability of Chengdu North Marshalling Station. Based on the analysis, the researcher put forward new requirements for the marshalling station. Thirdly, the researcher collects the data and statistics of ascending and descending trains in Chengdu North Marshalling Station, then makes the qualitative analysis and does quantitative calculation of it. The results show that the intervals distribution of trains in the line with gamma distribution, and the quantity distribution of the trains obey normal distribution. The researcher estimates the operation capacity and coordination ability of Chengdu North Marshalling Station based on the formula which is applied under traffic imbalance arrival condition, as well as normal distribution of coordination degree model.Finally, the researcher gives measures for improvements according to the results of the requested data and the operation condition of Chengdu Northern Marshalling Station, and these measures can be used as reference and supportive proof for the expansion, enlarging capacity and upgrading of the station in the future.