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Train operation design based on decision preference controllable

MENG Xue-lei1,2,JIA Li-min2,BU Meng3,WU Tao3,MENG Wei4 (1.School of Traffic and Transportation,Lanzhou Jiaotong University,Lanzhou 730070,China; 2.State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China; 3.Nanjing Subway Operating Branch Co Ltd,Nanjing 210000,China;4.School of Highway,Chang'an University,Xi'an 710064,China)  
Taking the minimal summary generalized cost of passengers and the minimal operating cost of the subway company as the objectives and train full-load ratio,train length and operation frequency as the constraints,a multi-objective programming model was built and solved.The multi objectives are united into a single objective by setting the weights.Three schemes were proposed,when their the problem solved accordingly and the effect of the weights on the solutions were analyzed.The weights can exactly describe the decision preference in line planning for subway and this approach can support the line planning,which is very valuable.
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