METHODOLOGY OF MATHEMATICAL MODELING FOR PERSPECTIVE DEVELOPMENT OF NODES AND TRANSPORT ROUTES IN A MULTICOMMODITY HIERARCHICAL NETWORK. II. EXPERIMENTAL RESEARCH

This article is the second part of the work, which proposes a methodology for mathematical modeling of the step-by-step development of nodes and transport routes in a hierarchical network with multicommodity discrete correspondence flows. As a rule, such networks consist of a decentralized trunk network and networks in the internal service areas of trunk nodes. In a multicommodity network, each node can exchange correspondence (products, goods, cargo, messages) with other nodes. In the trunk network, all correspondence is transmitted via communication channels or transported in vehicles in transport blocks of a given size (capacity, volume). In this part of the work, using the example of transport networks, it is experimentally shown that the step-by-step solution of the problems of optimizing the structure of the trunk network and the distribution and routing of flows allows obtaining initial data for building dynamic deterministic and stochastic models of their development. It is also shown how these tasks can be used for operational redistribution of flows in case of equipment failures in nodes and on communication lines (exceeding the throughput capacities of nodes and communication channels, the carrying capacity of vehicles, etc.). Keywords: multicommodity hierarchical networks, discrete flows, combinatorial optimization problems, mathematical models, computer modeling.