On the basis of the study, an analysis was made of the capacity of the roundabout according to the existing traffic intensity in the city, taking into account the composition of the traffic flow, the main factors affecting the passage of vehicles at the entrance to the self-regulated intersection are given. The possibilities of reducing congestion within the framework of the existing street and road network of the city are analyzed, conclusions and recommendations are given based on the results obtained.

Keywords: traffic capacity, traffic composition, roundabout, design speed, vehicle spacing, center island, load level, congestion, normalized traffic volume, number of lanes, service level

The paper presents the results of a study of the possible fight against snow drifts in the Murmansk region on the example of an auto-approach to the village of Teriberka. The volume of snowfall is calculated, recommendations are given on climatic data for the region, recommendations are given on possible options for dealing with snow in the Far North regions.

Keywords: snow drift, snow transport, road climatology, motor road, protection against snow drifts, drifting road sections, permanent and temporary snow protection

With the help of the software package of finitely elementary analysis, a methodology was modeled with subsequent analysis of the performance of the gauge coatings made of reinforced concrete slabs on the basis of earthworks of variable stiffness.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The paper presents the results of a study of the road network of the Republic of Karelia, identifies the most significant problems of the road sector, assesses the mutual transport accessibility and transport links of all regional centers of the republic.

Keywords: road network, road density, population size, length of roads, road facilities, factor analysis, transport accessibility, operational condition, transport links