Research On The Key Technology Of The Comptuer Aid System For Making Stage Plan For District Station

The district station is very important in China technical railway stations, the transportation organization in it has characteristics as "small and complete", "transitional". By use the message of the number of loading and unloading cars of each daily and destination and numbers of the car flow, according to the request of train diagram a, freight train formation plan and the station technical working, train station make station operating plan to organize it’s various work in each day and each phase. In this way the train can promise it’s equipments work well and met or surpassed the daily production tasks transport.Station work plan includes daily plan, stage plan and shunting operation plan. The daily plan is the most basic plan and it reflects the tasks and requirements for dispatching railway station specified. Stage plan is to arrange a specific daily plan of each phase of the work to ensure the completion of the daily plan. The main content of stage plan is to determine the main content source train, shunting locomotive plan and plan to use the arrival and departure line. Domestic and foreign scholars do lots of research on how to address three key issues of marshalling station stage plan, but few for district station.Firstly, this article analysis from the district station equipment, operation process, station layout and the operation system of coordination, put forward organization method to improve transit train, adaptation of freight train and the station operations trains organization. Then from the phase of the program content and guidance station work flow analysis, analyzing the difficulties station planning stage and general optimization strategy, and on the basis of analysis of the use of computer planning phase characteristics and difficulties. After comparison with the previous scholars flow problem solving phase plan to build a model, combined with the actual situation of the district station, the introduction of "traffic continue aging" and "traffic organization priority" for the parameters, set up assignment plan for solving general transport model. Finally, analysis of the structure and main characteristics of decision support systems, then discuss requirements and the system functional modules of Computer aid system for making stage plan for district station.