Train Operation Adjustment Model Based on Intelligent Application

Based on the current research status of train operation adjustment theory and the analysis of existing research limitations, four key issues are proposed to be considered in establishing an automatic train operation adjustment model, such as some issues not related to train working diagram, EMU connection, crossing route conflict and track-line connectivity. Ten constraints are constructed based on these key issues proposed. Combined with the technical standards of intelligent CTC system, guided by the promotion of passenger satisfaction, according to passenger travel information and the idea of multi-objective optimization, an objective function is built to minimize the actual impact of train operation adjustment on passenger travel, and an automatic train operation adjustment planning model caters for intelligent application is constructed. This model is introduced into the development of intelligent CTC system and verified by three actual scenarios of train operation adjustment of Beijing-Zhangjiakou high-speed railway. Results show that the model can accurately deal with the train operation deviation in various scenarios, and generate practical and available train operation stage plans. The train operation plans generated can effectively eliminate the conflicts caused by train delay, such as crossing route, track utilization and EMU connection. At the same time, the plans can reduce the spread range of train delay and control delay spread while taking passenger transfer into account. © 2021, Editorial Department of China Railway Science. All right reserved.