Train operation optimization and capability analysis of high-speed maglev station

High-speed maglev has grown to be a significant component of public transportation as a practical method offering high speed and great comfort. The high-speed maglev system is currently in the technology research and development phase, and its commercial operation is still in its infancy, especially not much research has been done on station capacity. The train operation optimization and capacity utilization of high-speed maglev stations were investigated based on the transportation organization needs of high-speed maglev trains. Considering the integration of arrival-departure tracks and routes of high-speed maglev station, an optimization model of high-speed maglev station operation arrangement based on the provided schedule was established under the dual constraints of time and space from the aspects of station route application and station route section unlocking. Based on the characteristics of the problem, a genetic simulated annealing algorithm was developed by combining the global search performance of the genetic algorithm with the local search performance of the simulated annealing method. A case was used to obtain the optimization scheme of station operation arrangement with total delay of 0, and the utilization of station capacity was examined. To calculate the carrying capacity of high-speed maglev stations under a specific type and proportion of train flow by compressing the interval time between station receiving and dispatching trains in a given schedule, a heuristic algorithm based on the compact arrangement of train operation was designed. Comparing, evaluating, and exploring the general principles of the station carrying capacity under various train diagram scenarios of transport demand. It is concluded that the utilization efficiency of station carrying capacity decreases successively by the through train without stop, arrival-departure train, through train with stop, turn-back train. This study completes high-speed maglev technology from the standpoint of train operation organization at the train station, which can provide reference for the operation arrangement and capacity utilization of high-speed maglev station. © 2023, Central South University Press. All rights reserved.