Crew rostering plan is a work schedule designed for crews, the quality of which directly affects the operational safety and cost-efficiency of high-speed railway. To ensure a reasonable connection of crew routes and a smooth transition between old and new plans, a two-stage optimization strategy is adopted to optimize the rostering plan of high-speed train crews. In the first stage, a model is formulated with the objectives of minimizing total connecting time and balancing the redundancy connection time, aiming to determine the sequence of crew routes and long time-off arrangements in the new plan. In the second stage, a model is developed with the goals of minimizing the number of crew deadheading and plan alternation costs, aiming to reasonably allocate specific tasks undertaken by drivers on the first day of the new plan. Utilizing real data from a EMU fleet of China Railway Nanchang Group Co., Ltd. as background to design the case, the commercial solver Gurobi is employed for solution. The results show that, compared with traditional methods, the first-stage model further reduces connecting time, shortens the plan cycle by 1 day and reduces the plan required number of drivers by 1. The second-stage model effectively controls the impacts of plan alternation, during which only 2 instances of crew deadheading occur, only 1 driver consecutively undertakes multi-day routes, and no driver misses long time-off.
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