Research on the Adjustment and Optimization of Train Working Diagrams Including Tourist-Dedicated Trains

Because China’s high-speed railway diverts many passengers from the existing railway, the existing railway network capacity has greatly increased, which provides convenient conditions to begin tourist-dedicated train projects. Due to the lack of research on the optimization of train working diagrams, including tourist-dedicated trains, first, the time characteristics of tourist-dedicated train passengers are analyzed. Then, according to the proposed optimization principle of train working diagram under the condition of tourist-dedicated train operation, the optimization model is constructed, the operation line of dedicated train is added to the original operation diagram, and the optimization is adjusted. The validity of the model is verified by examples and comparative experiments. The research results show that the constructed train working diagram optimization model and algorithm can adjust and optimize the running lines of dedicated trains and has good practicability. This study fills the gap in the research of this problem and makes a theoretical innovation in the theory of train working diagram optimization, and can provide a theoretical basis for the operation planning, transportation organization and other process optimization of subsequent tourist-dedicated train projects of railway transportation management departments.