Maintenance Scheduling Optimization for 30kt Heavy Haul Combined Train in Daqin Railway

The freight demand on Daqin Railway is growing yearly, but the maintenance scheduling is almost based on field experience, which makes great impact on transport capacity. Based on maintaining theory, this paper focuses on modeling and algorithm, offering scientific maintenance scheduling for Daqin Railway. With the investigated data, it analyzes the current maintenance scheduling of Daqin Railway. Then the paper models maintenance scheduling based on description of an example illustration, aiming at the least impact of maintenance scheduling on train scheduling. With the algorithm ready, the train operation database is established and the scheduling solving system is developed. Finally, a theoretical maintenance scheduling is provided for 30kt heavy haul combined train in Daqin Railway. The offered maintenance scheduling can meet the actual demand with different maintaining durations.