Collaborative Optimization between a Passenger Train Operation Scheme and a Comprehensive Maintenance Gap in the Net of a Passenger-Dedicated Line

摘要

To solve the contradictions of operation and maintenance in the net of passenger dedicated line, the problem of optimizing passenger train operation scheme and comprehensive maintenance gap was addressed by taking into account the reasonable operation time of passenger train and the importance degree of key train. Aiming at minimize the importance degree of total passenger line influencing by maintenance gap , a collaborative optimization model was proposed, and a corresponding algorithm was designed. Computational results show that the best maintenance gap period is received, which is the train reasonable operation time with least importance degree of the key train. And with the increase of maintenance gap, the number of key train and importance degree has a tendency to increase.