One of factors that negatively influence on an environment is noise. Noise can negatively influence on a health man. Determination of effective measures of noise rotection of workplaces became the aim of our researches. Certainly, that the most more showy measure are the so-called screens. It is significant, it is the most effective entrance of the city. They became the theme of our research. By us were the studied systems of classifications of screens. They are divided depending on such parameters: on the method of action; after a geometrical form; after an outline in a plan; after the method of arranging, on material. Defining advantages or lacks of the two following charts is impossible (id est there is not sense). They are accepted as given. Consideration of frequent is carried out from the source of noise, that it is located in a narrow corridor between an abat-voix and other obstacle. For simplification it is possible to accept the location of source of noise directly on the surface of soil: the point of source of noise is successfully approximated by a location directly on the surface of soil; distance between this surface and very had an actual mestome to the locations, easily yields to the calculation, i always can be a little rather entered in a calculation as an insignificant additional correction. If we consider reflections not from the left, but from the right screen, absolutely adequate formulas can be derived, in which (taking into account the mirror symmetry of geometric construction), the corresponding indexes are simply replaced... At some stage, the multiple reflection stops. This happens when the height of one of the reflection points exaggerates the height of one of the screens. The sound beam has nothing more to reflect, and it enters the space (to the sky). Therefore, when describing each reflection, we provide boundary conditions for its happening. A voice ray falls on a screen, and reflected from a that screen under the same corner q. It is suggested to "delete" a voice ray by us, directing him to sky above an oppositely stand-up screen after the first beating back.

One of the directions of the economic development of the state is the construction industry, in which the issues of labor protection and improving safety are extremely acute, since its effective growth depends on the solution of this issue. With the development of scientific and technological progress, as well as digital technologies, the question of the possible application of this area in matters of ensuring the safety of production processes becomes relevant. Today, in the construction industry, BIM technologies are actively being used. BIM (Building Information Modeling) - Building information modeling is the process of creating an integrated model of the future construction project, which includes all stages of the life cycle of the project from the design stage to the dismantling stage. BIM technology is the very tool that shows how to improve the interaction of all project participants. BIM is based on a three-dimensional information model. The information model of the building means obtaining full information about the future construction site according to the most popular sections of the design documentation. This technology is a universal information platform that allows you to integrate various software modules into the BIM model of investment and construction projects. Thanks to this approach, it became possible to digitize construction production while monitoring the safety of work, as well as labor protection using a risk-oriented approach. Considering the application of this technology and the result, it can be seen that all research is aimed mainly at the work of designers. However, if we consider BIM technology as an information platform (base) on which new software products (complexes) can be superimposed, then we can create a qualitatively different approach in the application of this technology. In particular, it is possible to review the approach to the assessment of industrial safety and labor protection, in another perspective to approach the scheduling of construction schedules, consider the possibility of applying such programs in the assessment of construction and installation risks during the implementation of the investment and construction project. The article discusses 3D modeling of objects, such as a construction site. Individual areas with boundary assignment were analyzed to assess the degree of safety in these areas. To assess the state of labor protection, a breakdown of the studied object to 100 square meters was adopted. The stage of determining the most hazardous production factors, as well as possible risks that may be involved in the construction work has been investigated. According to the results of ranking of hazardous and harmful production factors, hazard zones are determined regardless of the type of construction and installation work. Based on the distribution of hazard zones (boundaries), it is possible to rank safety levels that characterize the safety situation at the construction site. The Construction Safety Index allows you to identify the processes and factors that most affect labor safety, which makes it possible for inspectors to most effectively correct the selection of protective measures at the construction site.

Recent research has shown that city noise has a negative impact on human health. Noise maps have been widely used in recent years and are used to visualize the noise regime of territories. When constructing such noise maps, lines of the same sound level connect those points on the terrain plan, where quantitatively equal decibel values are recorded. However, such a picture, as well as having a good time in the two-dimensional expanse, in the area, it is not enough to precisely identify the boundaries of the zones of acoustic discomfort, which may cause a trivial vimir. Spacious pictures to noise can be a large number of spacious figures, which can show the standard sound for the objects in the highest noise in the decimal areas (three open spaces), the base must be left open, open, vimіr is a hang over the surface of ґrunt. Vicoristuyu described in the robot model, vrakhovuychi characteristics of the direct soundness of the energy and noise, there is the ability to computerize the process of awakening sound fields in the vast expanse. The presence of trim models also significantly increases the accuracy of noise maps. To gain a spacious picture of dzherel noise, the technique described in the robot is to be heard. To evaluate the noise clutter in the territory of the center of Kharkiv metro station, in the capacity of the butt, the bull was inspired by the 3D model of the given data from the specifications of the features of the rel. Keywords: ArcGIS 3D model, noise map, model, noise.

The use of modern thermal insulation materials in construction is one of the additional sources of harmful production factors and also lead to the formation of fine dust. To date, the risk of loss of health of workers in the construction industry in contact with mineral wool is little studied. To reduce the risk of health of workers in the construction industry, it is necessary to give a comprehensive assessment of harmful factors of the production environment when using mineral wool in the technological process and justify measures to improve working conditions. The paper provides information on a widely used in the construction industry insulation material - mineral wool. Its chemical composition is given. The main unfavorable factors of the working environment are revealed. In the construction industry, one of the most pronounced harmful production factors is the formation and release of dust, which is an aerosol of predominantly fibrogenic action. The development of the construction industry, the introduction of new insulation materials in the construction of industrial buildings, installations and structures, as well as residential and public buildings lead to new, insufficiently studied factors of the production environment that affect the health of workers and may increase the risk of health loss. To date, information on the effects of mineral wool on the body of workers and the toxicological characteristics of different types of mineral wool are fragmentary. The chemical composition of the dust determines the nature and severity of the adverse effects of dust. The dispersion composition of the dust determines the depth of penetration of particles into the respiratory organs of workers. The stability of dust particles in the air of the working area, their concentration, shape and duration of exposure determine the dust load and the risk to the health of workers. Dust particles can sorb on their surface other pollutants, which both in the complex and in isolation pollute the air of the working area and have an adverse effect on workers. An important criterion for the safety of mineral wool under inhalation is the dispersion of the dust formed. It is generally accepted that the most dangerous mineral wool dust with a dispersion of 3 microns or less.

The problem of managing the safe operation of hoisting machines with an expired service life is associated with solving extremely complex interrelated tasks through a set of organizational and technical measures aimed at establishing the actual risk and economic feasibility of further operation. The most important condition in this case is the conduct of an expert examination of industrial safety and technical diagnostics, the results of which make it possible to establish the real state of hoisting machines at the current time. The safety of hoisting machines, including after the expiration of the standard service life (assigned resource), is associated with design features, workmanship, installation quality, their operation modes and a number of other factors. However, for heavily loaded hoisting machines, the main technical obstacle to safe operation is metal fatigue The results of a statistical analysis of defects detected by expert diagnosis of self-propelled boom-type cranes that have fulfilled the standard operating period are presented. The largest number of defects is associated with the destruction and wear of structural elements, the occurrence of fatigue cracks and the violation of the operating conditions of the equipment. The greatest number of defects is found in the hydraulic system of cranes, elements of the cable-block system, less often in metal construction. To conduct a risk analysis of self-propelled jib cranes in conditions of insufficient information, a methodology for expert assessments is proposed. It allows you to evaluate the impact of potential defects of self-propelled jib cranes on the amount of economic damage to the crane itself and the transported load and on the magnitude of the traumatic impact on humans. Defects and damage to the metal structures of the cranes discovered during the examinations are the result of the following combination of reasons: low quality of the metal (mild steel); unsatisfactory design; unsatisfactory quality of manufacture and installation of individual elements; environmental aggressiveness; operation of cranes in an unintended mode, poor maintenance and repair Keywords: safety, propelled jib crane, defect, expert assessment, risk analysis, diagnosis.