The article presents the concept of sustainable development of a street road network segment connecting the Koptevo district and the Timiryazevskiy district in the Northern Administrative District of Moscow. When designing the concept of changes, the authors used common scientific methods in their research in order to determine problems and related domain objects. It was found that the sustainable development of this area requires modernization of the district’s transport system. All traffic flows, their objects, relations and external characteristics affecting the nature of traffic were identified for this road segment. This resulted in a formal model of traffic flow. By analyzing the research findings, the authors developed a concept of road infrastructure changes to improve the time, environmental and safe efficiency of traffic flows. To substantiate the efficiency, a formal traffic model was developed along with its respective parametric model being a basis for the imitation model.