Analysis and model the train set shunting plan safety optimization problem in the hub type high-speed railway station

The hub type high-speed railway station plays a critical role in the high-speed railway network, because it directly affects the safety of the operation organization of the whole railway network. The characteristics of the operation organization of four types of stations with different layout structures are analysed in detail. The characteristics and adaptability of different layout structures of various hub type high-speed railway stations are compared and analysed. A mathematic model is built to minimize the stop time of the train set in the yard on the basis of no train route conflict in the operation plan. A computer system is developed based on the mathematic model, a real world case study shows that the model proposed in this paper can eliminate the route conflicts among all the trains in the hub type high-speed railway station, thus ensured the safety and feasibility of the operation plan. And the stop time of the train sets in the yards is significantly decreased.