Aiming at the problem of the co-station operation of mainline and cross-line trains and serious operational conflicts in the throat area of stations in high-speed railway passenger transport hub station, firstly, the train operation characteristics of these 2 types of trains are analyzed, and a division method of track harness is proposed. Then, with the objectives of optimizing track occupancy balance degree and plan interference resistance of the track utilization plan in high-speed railway passenger transport hub station, considering various constraints such as the technical operation time calibration for trains, the occupation of passenger resources by trains and the conflict of passenger resources occupation, a 0-1 integer programming model is established to formulate track utilization plan in the busy high-speed railway passenger transport hub station, and an improved genetic algorithm is designed. Finally, case studies are carried out at a busy high-speed railway passenger transport hub station. The results show that the designed algorithm exhibits superior convergence, being able to ensure the formulated track utilization plan as the globally optimized solution. Compared with the original plan of the station, the track utilization plan formulated by the proposed method improves by 99.1% and 23.5% in the track occupancy balance degree and plan interference resistance, respectively. While adopting the proposed method to formulate the plan, track occupancy balance degree and plan interference resistance should be considered in a balanced way. When the train delays, if the delay time is an integer multiple of the minimum track occupation interval, the actual arrival time of the train should be delayed appropriately to alleviate the impact of delay on the track utilization plan.
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