Analysis On Marshalling Station Arrival-classification System Coordination And Reasonable Tracks Calculation

The rapid transit railway forms network fast, which makes transportation capability of original lines increase drastically and make original lines adapt to the transition of freight transport to modern logistics. But as the varieties of railway transportation goods increasing, the capability of marshalling station becomes the bottleneck which limits the development of freight transport, however Arrival-classification system is an important link that restrict marshalling station’s coordination, it is huge research significance. This paper raise an analysis of marshalling station declassification system, which is based on the influence factors of marshalling station’s coordination. It raises the study method of declassification system’s load degree and optimizes the resource allocation of freight train examination. It is vital for study on marshalling station declassification system’s coordination and optimizing the capability of declassification system. This paper’s core research content is represented as follows.In chapter 1, some existing domestic and overseas study achievement is referenced. This paper studies on marshalling station declassification system’s coordination and raises influence factors of declassification system’s dispatch.In chapter 2, this paper raises the concept of declassification system’s coordination. Based on chapter 1, it analyzes the major factors that influence the imbalance transportation and marshalling station’s capacity.In chapter 3, this paper studies on the coordination degree of declassification system through the number of tracks which from marshalling station coordination factors. This paper is based on the wave of trains arrival marshalling station, divides one day into two time interval. Judge receiving yard reasonable number of track according to arrival-classification trains in busy period, and then analyze receiving yard reasonable load degree. From the function relationship between trains’arrival interval time in busy period and practical number of tracks in receiving yard, receive reality load degree of arrival-classification system in marshalling station.In chapter 4, this paper studies on improving freight train examination of declassification system’s coordination. It establishes a model of freight train examination in marshalling station. Regard it as a target that the waiting time of freight train examination in marshalling station is the shortest. It considers those uncertain factors in examining progress, such as uncertainty inspect train time and disintegrate time, and etc. At the same time, it optimizes freight train examination of marshalling station, and changes trains inspect task from original groups to basic groups and temporary groups. Basic groups are used in un-busy period and temporary groups are used in busy period, verified by simulation as well.In chapter 5, based on the data of Fengtai west and Kunming east Marshalling Station, this thesis analyzes the probability distribution of the arrival time, inspecting time and sorting time of the trains. Meanwhile, it imposes the researches mentioned above, and analyzes the reasonable number of tracks, reasonable load degree and the coordination degree of arrival-classification system, and simulation Kunming east marshalling station trains inspect task.