JUSTIFICATION OF THE MAXIMUM PERMISSIBLE THICKNESS OF LOOSE SNOW DEPOSITS ON THE CARRIAGEWAY OF HIGHWAYS

Abstract

Substantiation of requirements to the normative indicators of the level of winter maintenance of highways, allows solving the problems of winter operation due to the correct organization of work: provision of road maintenance service with personnel, a park of cleaning equipment, manufacturing enterprises. The main normative indicator that must be used for planning winter operation is the maximum permissible thickness of uncompacted snow sediments on the pavement of the roadway. At the same time, the periodicity of measures established by state standard 58862-2020 for the treatment of the pavement with de-icing materials and snow removal are insufficient to meet the requirements for the permissible thickness of loose snow sediments. This circumstance negatively effects on the organization of winter maintenance. The article proposes a technical and economic approach to determine the value of this indicator, and shows that its optimal value may differ from the standardized one. The developed methodology takes into account the cost of transportation, losses from road accidents and the cost of clearing the roadway from snow.