Road transport
Technosphere safety
In this article, on the basis of the methodology for the evaluation of integrated indicator of "the level of service provided by infrastructure" (eng. Cycling Level of Service, CLoS) demonstrated the shortcomings of the design of the bike lane on the Boulevard ring of Moscow and shows that the existing design solution does not create favorable conditions for the use of this infrastructure by Bicycle users (CLoS = 39 points, therefore the bike lane should be classified as low-quality, suitable only for very experienced cyclists).
Thanks to the relatively simple measures proposed in the article, it is possible to increase the level of quality of service of cyclists (CLoS) more than twice, to a value of 90 points, which will allow to consider the Bicycle lane as high-quality, suitable for cyclists of all ages and qualifications. The implementation of the proposed measures is likely to lead to an increase in the intensity of the use of the Bicycle infrastructure under consideration.
The proposed method will allow reasonably and as objectively as possible to assess the quality of the existing and planned Bicycle infrastructure in Moscow and other cities, and increase the efficiency of its use.Transport equipment
As part of the study and student exchange program between European institutions of higher education in Parma, Italy, under the Erasmus + program.
During the period of study, the Russian student was the initial material of the discipline “Material Mechanics and Structural Integrity [1]”. The ABAQUS software was mastered, which allows analyzing design structures, evaluating new functionality, and modeling technological processes. Were obtained laboratory tests of samples obtained in the laboratory of the University of Parma, Italy. After processing and analyzing the results, conclusions were drawn about the possibilities of using the tested materials for the production and repair of car parts and components, for example, for inserts of a crankshaft of an internal combustion engine.The hydraulic cylinder is a key link in the hydraulic system of road-building machines. In the process of its operation, malfunctions may occur, leading to breakdowns or a decrease in the performance of the system as a whole. The object of the study is the hydraulic cylinder rod. The subject of the study are various methods of repair of scoring, including the use of polymer composite materials. The purpose of the study is to compare these methods, identify their advantages and disadvantages.
The review of traditional repair technologies, such as: the method of repair dimensions, surfacing and spraying. It is revealed that the technology of applying graphite-filled two-component epoxy glue is a more effective technical and economic solution compared to the above methods. The use of polymer coating will not only improve the performance of the repaired rod, but also the level of its reliability and maintainability throughout the life cycle.Construction
In the article it is discussed the main types of waste generated during the demolition of buildings. The most common are waste concrete and reinforced concrete. Since 2018, renovation has been carried out in the Moscow region, during which the estimated volume of concrete scrap will be more than 13 million m3. The most effective way to utilize concrete waste is to use crushed concrete as coarse and fine aggregate in hard concrete mixtures when constructing road foundations.
The research of the sand grains surface has been conducted by micrographs. The properties and features of crushed concrete have been determined. Formulations of rigid rolled concrete with replacement of natural aggregates to sand and crushed concrete crushed are selected. Conducted research on the properties of concrete on aggregates of crushed concrete. The economic efficiency of the use of crushed concrete in rigid concrete mixtures for the construction of road foundations has been determined.Road safety
Economics and management
Engineering education
Physical culture
Military Affairs
Materials 77th scientific-methodical and scientific-research conference MADI. Section "Philosophy and science"