ЭКОНОМИЧЕСКАЯ МОДЕЛЬ ВЫБОРА МУЛЬТИМОДАЛЬНОГО ТРАНСПОРТНОГО КОРИДОРА ДЛЯ СКОРОПОРТЯЩИХСЯ ГРУЗОВ: КОНЦЕПЦИЯ ПОРОГОВОГО КАЧЕСТВА И ИНТЕГРАЛЬНЫЙ ПОКАЗАТЕЛЬ Jₖ

Abstract:
This article presents a comprehensive analytical model for solving the problem of selecting a multimodal transport route for the delivery of perishable goods in cases where quality losses cannot be financially compensated due to their irreversibility. The main innovations in this theoretical part lie in the following three aspects: first, an economic category (quality threshold) has been defined. In the context of the binary sanitary and philosophical management of Rosselkhoznadzor, the function of logistics losses in the “cold chain” has a discontinuity; therefore, the solution to the optimization problem will differ from the TCO model. Secondly, an integration index Jₖ has been introduced, which includes travel time, total transport costs, and the cargo safety factor; a rational economic lower limit for the quality weight value wʷ ≥ 0.40 has been determined, based on the irreversibility of losses. Thirdly, a principle for classifying the competitive advantages of structural and situational corridors has been developed. The methodological validity of the Jₖ index has been proven using sensitivity analysis based on 180 observations across three competitive corridors. The results obtained make it possible to formulate well‑founded practical recommendations for logistics companies and government agencies when choosing a strategy for delivering perishable goods to the Arctic zone of the Russian Federation.