Simulation Software for Multicommodity Flows Model of Interregional Trade

The paper defines a multi-commodity network flow equilibrium approach. The “gravity” model is used for the transportation costs. The model is reduced to the nonlinear optimization. A software toolkit is realized for interactive modeling and result visualization. The simulation module is implemented on a high-performance server platform, control and visualization modules are implemented on the IACPaaS cloud platform. Asynchronous http-queries are used for interaction between the platforms. For data exchange between the modules a declarative model in the JSON format is developed. It consists of three main types of objects: products, zones and communications. The paper demonstrates a practical use of the software for the simulation of inter-regional traffic in the Far East region of Russia.