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The concept and methodology of calculating the parameters of a transport logistics network are considered as a phenomenon in modern logistics that expands the concept of a “logistics chain” from the level of interaction between two organizations to the level of intraregional and interregional interaction of industrial groups within a regional transport network. An example of this is the parallel commodity flows between Asia and Europe through the Suez Canal, through the Cape of Good Hope and through the Northern Sea Route. The answer is given to the question why logistics flows simultaneously exist on parallel routes at different levels of transportation costs, while it would be logical to assume that the logistics flow should focus onto be on the least expensive path. A mathematical apparatus is proposed for solving the problem of the distribution of logistics flows within a transport logistics network, presented in the form of an oriented graph, and determining the parameters of each segment of an established transport logistics network for the movement of material resources based on the relationship of these parameters. The proposed mathematical apparatus makes it possible to establish the relationship between the four main characteristics of a logistics route – cost, speed, safety and service based on their overall impact on the costs associated with transportation along this route. The given calculation method allows us to estimate the change in material flows along different routes when changing the material characteristics of routes – cost, speed, safety.
Vladimir A. Lazarev (Thu,) studied this question.