Application and Analysis of an Integrated Simulated Model for Railyards Operations

This paper addresses the problem of proposing a new simulation model based on train flows to describe the operations in railyards. The model accurately reflects the coordination conditions of cars flow variation, yards devices (hump, tracks and engines) and management methods in railyards. On the basis of the model and developed simulation software, the influence of increasing speed of passenger trains on a real yards freight operations has been evaluated based on history data of 1993, 1997 and forecasting data of 2002. The simulation results show that our simulation method provides more accurate and feasible ways to analyze the new changed operations and capacity of railyards.