PUBLISHED PAPERS #26

Jamila NAMAZOVA, Tabriz YADIGAROV, Dagbeyi ALLAHVERDIYEV.
Economic and mathematical modeling of operating costs in sea freight transportation under uncertainty
Abstract. The formulation of the problem of distribution of the fleet along the lines as a problem of linear programming assumes the complete certainty of the volume of traffic for the planned period on each cargo flow, the certainty of the availability of the fleet and the planned indicators of the use of the fleet. Meanwhile, due to a number of reasons, it is not always possible to determine the amount of cargo flows for navigation with the required degree of reliability. An analysis of the reporting data of the transport fleet in terms of cargo flows showed that the planned applications of shippers are often implemented with deviations of 4-15% in the direction of excess and decrease [4]. Although these changes can be largely taken into account in the operational regulation of the fleet, in some cases it is advisable to take into account possible fluctuations in traffic volumes in the economic and mathematical model of the fleet arrangement at the stage of developing the annual schedule scheme. The size of fluctuations in traffic volumes is of a different nature and varies depending on cargo flows. In this regard, to solve the problem of fleet placement in the presence of a significant fluctuation in traffic volumes, it is advisable to consider the use of parametric programming. In the article based on statistical data 20013-2021, analysed and estimated costs per 1 ton-kilometre cargo turnover for the sea transport fleet. An economic-mathematical model was built here and the scheduling problem was solved to minimize operational costs of transportation under conditions of uncertainty on two operational lines of the Transport fleet [5].
Keywords: fleet; ship; economic-mathematical model; cargo flow; carrying capacity; inequality; optimal plan; parameter
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DOI: https://doi.org/10.54381/plmo2023.26