Arrival regularity of the train flow in marshalling station on trunk line with increased speed

The arrival regularity of the train flow in marshalling station is mainly affected by the number of its connecting directions, the technical characteristics of the connecting directions, the distance between marshalling station and railway passenger terminal station, and the type of marshalling station layout and so on. On the basis of analyzing technical working charts of a number of marshalling stations selected from Beijing-Guangzhou and Beijing-Shanghai railway lines, this paper summarizes three characteristics of the arriving train flow as follows: Superposed train flow, reciprocal train flow and major direction train flow. Based on arrival intensity of train flow the whole day is divided into three phases: Busy, idle and normal. According to the characteristics of the train flow, the arriving interval rule of the freight trains in all phases is processed and classified in connecting direction by CurveExpert. The results show that the arriving interval rule of the freight train basically tallies with Heat Capacity Model and Harris Model in idle phase, Harris Model and Heat Capacity Model in normal phase and Harris Model in busy phase.