Purpose. To increase the efficiency of the process of bulk cargo delivery by exit routes by optimizing the techno logical parameters of the supply chain. methodology. The optimization of the technological parameters of the supply chain for cargo delivery was carried out using mathematical modeling. To assess the effectiveness of the process of cargo delivery, an analytical method of research was applied. Findings. As a result of the research, optimum values of the technological parameters of the production and trans portation chain of ore cargo delivery by exit routes were obtained: the composition of the formed route is 38 cars, the loading point performance is 324.2 t/h, the delivery interval is 1.75 days. Using the optimal technological parameters of the supply chain for the delivery of bulk cargoes by exit routes, the operational work of the railway transport is planned, ensuring compliance with the delivery interval for the purpose of implementing the requirement "just in time". The dependences of the specific costs of these parameters, which allow evaluating the nature of their changes in various given conditions, are constructed. Originality. The components of the economic effect of the supply chain for the delivery of bulk cargoes (coal, ores, etc.) by means of exit routes have been formalized and a method for evaluating the economic effect for both subjects of the supply chain is proposed: the owner of cars and production. Practical value. Recommendations on the formation of the technological process of functioning of the entire sup ply chain are given for given values of the duration of the supplier's and customer's production cycles, the duration of transportation, the intensity of the input of the delivered raw materials into production. To improve the efficiency of delivery of bulk goods, it is recommended to use the developed schedules of interaction between production, trans port and consumption. At the same time, the intensity of raw materials receipt into production determines the opti mal composition of the formed exit route and the delivery interval.

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Application of the offered methodology of the costs assessment of customer service for transportation of small perishable cargoes in urban areas makes it possible to choose the rational brand and cargo capacity of the truck, depending on the number of delivery locations in conditions with constantly changing demands for transportation services. The developed mathematical and imitation models allow simulating the process of small perishable cargoes delivery in urban areas at rendering transportation service to small cargo customers, including the service of retail chain shops, hotel and restaurant businesses. These models allow for quickly estimating the specific expenses for perishable cargoes delivery depending on price values and technological parameters. The methodology is of interest for practical use for PL-forwarders at the assessment of possible transport costs in conditions of the constantly changing demand for transport services, as well as for customers (malls, restaurants, hotels, mini-markets) of small perishable cargoes.

The introduction of environmentally friendly technologies is becoming increasingly necessary to combat global warm-ing and air pollution in cities. The concept of eco-logistics is seen as an effective approach to the management of materials and related flows in order to reduce environmental and economic damage to the environment. The sustaina-ble development of green supply chains is based on the use of environmentally friendly types of vehicles, reduction of energy and other resources consumption, optimization of transport and technological processes in delivery systems. As part of the development of green supply chain, it is proposed to transport goods by freight trams, which eliminates the need for heavy trucks in the city, improves traffic conditions and reduces the environmental impact of transport. The research was conducted for the city of Poznan. The distribution system of the city of Poznan operates in conditions of stochastic demand for deliveries from clients and the risk of lack of sufficient supplies in distribution centers. To take into account the specificity of the distribution system of cargo delivery in conditions of uncertainty and risk, a simula-tion model of the organization of the material flows within the transport system of the city of Poznan has been pro-posed. The result of simulation is the optimal assignment of clients to the distribution centers, as well as the value of total mileage with the load, which is a random variable. It is assumed that the random variable is distributed according to the normal distribution law. The results were calculated and compared for two variants, i.e. for constant demand and sufficient quantity of cargo in distribution centers, and for variable demand and uncertainty conditions, e.g. insuffi-cient cargo quantity in distribution centers. The purpose of the paper is to develop a simulation model for planning supplies of small consignments of goods by trams implementing green logistics concept with variable demand for transportation. After a short introduction of the problem, the literature review related to the concept of green logistics and requirements of transport and distribution system are presented in section 2. In section 3, the research problem and research methodology are described. Section 4 provides the results of assignment of clients to distribution centers. The paper ends with concluding remarks.