Study On The Optimal Location Of The Locomotive Maintenance

Firstly, this article analyzed the process of locomotive fuel supplymanagement, by studying on the characteristics and laws of the fuel supplyprocess and combining with present situation of locomotive preparednessfacilities. Secondly, the problems of railway locomotive depot of fuel supplymanagement process were discussed along with current management methodswhich were used widely in practical environments. After a review andcomments on proposed locomotive depot fuel management at home andaboard, we finally put forward some optimization strategies of locomotivefuel supply management.After describing the productivity distribution of electric locomotive depotin Shijiazhuang railway station, we discussed the input-output projectpreparation method of service track. By consulting some experts we selectedthe fuel consumption, fuel transportation, fuel management and labor as inputitems and locomotive traction assignments as an outcome item. We used DataEnvelopment Analysis (DEA) method to evaluating performance under theconditions such as considering the change of returns to scale or not.According to the evaluation results we knew that currently Shijiazhuang,South Park and Hengshui West, Xingtai are the relatively efficientpreparedness point and that they should be given high priorities to retain therefueling facilities in this service track.Based on the analysis of some relevant guiding principles for facility layout,combined with the special requirements of the Maintenance Readiness pointsto oil storage tank capacity and other factors such as locomotive routing, weformulated a non-linear0-1planning layout model for refueling facilities,which included many types of variables. Objective function was chosen byconsidering both the interest of the policy makers and that of customers inorder to achieve the minimum total cost of the fuel system. The oil depot and locomotive fuel reserves bound volume were regarded to be as locomotivefuel constraints in our model. These constraints are important components forthe refueling facility layout optimization problems. The model and results inthis paper established a primal basis for further study on the dynamic changesof the locomotive routing refueling facilities under the conditions of layoutoptimization.