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- W2290168604 abstract "This article is found in the International Journal of Management SciencesVol. 3, No. 1, pp. 1-20 which was published in 2014. It focuses on Train Schedule Optimization with a case of National Railways of Zimbabwe.,The locomotive assignment problem involves assigning a set of locomotives to each train in a pre-plannedtrain schedule so as to provide sufficient power to pull them from their origins to their destinations. Anintegrated model that determines the set of active and deadheaded locomotives for each train, light travellinglocomotives and train-to-train connections is presented. The model explicitly considers consist-busting andconsistency. A Mixed Integer Programming (MIP) formulation of the problem that contains about 92 integervariables and 56 constraints is presented in the study. Three models are discussed for assigning locomotivesto wagons and coaches and the results are compared amongst the models themselves and compared to theexisting scenario at National Railways of Zimbabwe (NRZ). The models generally improve the number ofsaved locomotives and number of used locomotives. The Locomotive Assignment Model(LAM) solutionobtained showed savings of over 70 locomotives, which translates into savings of over one-hundred thousanddollars weekly." @default.
- W2290168604 created "2016-06-24" @default.
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- W2290168604 date "2014-01-01" @default.
- W2290168604 modified "2023-09-24" @default.
- W2290168604 title "Train Schedule Optimization: A Case Study of the National Railways of Zimbabwe" @default.
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