Research on Optimization of Electric Multiple Units Circulation Plan

As the basis for formulating the EMU allocation plan and the maintenance plan, the EMU circulation plan is the core content of the transportation organization for EMU operation depot. According to the actual production work of the EMU operation depot, the optimization factors of the circulation plan are quantified into the assumptions and variables of the model, and the goal is to establish the minimum number of circulations, the total number of trains and the maximum use of the maintenance mileage cycle The optimization model of the EMU circulation plan under the background of multi-vehicle, single-base and single-point maintenance with constraints of connection and first-level maintenance. according to the model, a solution algorithm of two-step optimization of the circulation plan is designed. The genetic algorithm is introduced to further optimize the feasible solution to obtain the optimal feasible solution. Taking part of the actual train data of Taiyuan South EMU operation depot as the research object, the model and algorithm in this paper are verified. The feasibility and rationality of the method provide a reference method for the preparation and optimization of the circulation plan of the train used by the train.