The research on countrywide railway operation simulation system

Based on the analysis on Countrywide Railway Operation Simulation System, the logic model which is on the basis of Data Flow Diagram (DFD for short) has been put forward. The simulation analysis on the whole system has been divided into Section I and Section II. Based on the Train Operation Diagram Data, Section I will transform the data format, obtain the simulation data, realize the simulation, and output the simulation results. On the basis of Section I, the simulation based on the Countrywide Railway Real Time Operation Data has been added in Section II. In this section, the real time data will be acquired from Railway Train Dispatch and Control System (TDCS for short), which will be transformed into simulation data, and the trains´ status will be displayed and updated on the Countrywide Railway Digital Map. The System Frameworks have been designed separately based on Section I and II. Finally, System key issues have been analyzed, including Geographic Information System (GIS for short) Design, Countrywide Digital Map Design, the Interface between Operation Diagram and Simulation System, Simulation Control, etc. This simulation system covers simulation for Train Operation Diagram and Train Real-time data from TDCS, which will provide global view for decision makers to learn and master the railway net operation status, so as to ensure the effective and safe railway net running through appropriate means of control.