Simulation Research On Container Operating System Of Road-rail Intermodal Freight Hub

The road-rail intermodal freight hub is an important part of the modern comprehensive transportation system,in which the container operation system is the core to realize the two modes of road-rail transshipment.The cooperation degree of container intermodal operation has greatly affected the overall production efficiency of the road-rail intermodal transport system.The research on reasonable optimization and collaborative scheduling of container operation links is conducive to improve the production level and intermodal capacity of the road-rail intermodal transport hub.Due to the characteristics of large investment,long construction cycle and difficult change of operation mode,the computer simulation method with repeatable experiment and low cost can provide optimization scheme and verification means for the design,planning and operation management of road-rail intermodal transport hub.Taking the container operating system of road-rail intermodal freight hub as the research object,this thesis establishes the simulation model of the operating system,optimizes the cooperative scheduling scheme of the operating system,and provides a theoretical basis for the reasonable planning and operation organization of the operating system.Analysis of a container operating system of road-rail intermodal freight hub.The function of the container operating system of the road-rail intermodal freight hub is studied qualitatively.The container operating system’s facilities is specified,such as the container operation area,storage area,and other supporting facilities.The equipment necessary for the container operating system’s operation is specified.This section explains the container operating system’s operation procedure in terms of different container destinations.The optimization model of container collaborative scheduling is created,which is the joint optimization model of container handling equipment operation sequence and container stacking position,taking into account the facilities and equipment needs of the container operating system.The combined schedule optimization of "Rail Gantry Crane-Inner truck-Outer truck-Front crane" is part of the loading and unloading equipment operating sequence optimization.The control optimization base of the container operating system simulation model is a two-stage solution algorithm.Construction of a container operating system simulation model.Based on the operation process of the container operating system inside and outside the freight hub,as well as the collaborative scheduling optimization of container loading and unloading operations,a simulation model of the container operating system is established based on the software of Anylogic,and the interface is used to input the results of the container collaborative scheduling model to realize the road-rail intermodal freight hub’s functional area division.Container operating system simulation experiment.With the change of the number of loading and unloading equipment,the arrival time of external truck,the number of gate channels,the layout of main storage yard and other parameters,the sensitivity analysis is carried out by using simulation model and scheduling optimization model,and reasonable suggestions are given.The research results can provide reference for the production and operation of container operating system of road-rail intermodal freight hub.