In this paper, the results of modeling the system "vibrating roller - compacted asphalt concrete" are considered. The analysis of the state of the quality of compaction of asphalt concrete mixture by the method of continuous control of compaction of asphalt concrete, as well as the influence of the behavior of the fluctuating mass of the roller on the viscosity properties of asphalt concrete is given. A mathematical model has been developed that allows taking into account the influence of asphalt concrete properties changing during the compaction process on the vibration characteristics of the vibrating roller. The spectrum of accelerations of the vibrating roller and the graph of the dependence of the stress of the asphalt concrete mixture in the compaction process are obtained. The developed model makes it possible to determine changes in the properties of the compacted material and the nature of vibrations of the vibrating roller. It is determined that with an increase in the value of the stiffness coefficient of asphalt concrete, the acceleration spectra of the vibrating roller also change. When the vibrating roller is in constant contact with the surface, only the harmonic at the operating frequency of the vibrating roller is visible on the acceleration spectrum, without the manifestation of other harmonics and subharmonics.

Keywords: vibration roller, asphalt concrete, material compaction, dynamic model, vibration characteristics, acceleration spectrum

Due to the increasing pace of construction and overhaul of roads, there is a need to introduce more economical and efficient technologies. One of such technologies is soil stabilization. Based on the study of various scientific literature and project documentation, typical soils of the foundation and roadbed of the Kirov region have been established, and their features have been identified. During the study of the soils of the region, several dangerous geological processes were discovered that affect the operation and construction of roads. The article analyzes various methods and techniques of stabilization of heaving soils, as well as possible design solutions for the construction of a layer of modified soil. In addition, the mechanisms by which stabilization is carried out and cases of their application were given. In the course of the study, the main types of stabilizing additives, their features and principle of operation were considered. In order to identify the degree of influence of various binders on the technological sequence of construction, variants of schemes for the production of work on soil reinforcement are presented, depending on their types. According to the results of the study, it was concluded that the stabilization technology is one of the most modern, efficient and cost-effective and provides various advantages in comparison with other alternative methods of strengthening of heaving soils. The relevance of this method for the Kirov region is also proved.

Keywords: road, construction, technology, stabilization, soils, additives, recycler, binders, soil cement, heaving, strengthening

Based on available literary and photographic sources, the architectural, spatial and planning methods of reconstructing railway stations into transport interchange complexes are analyzed and the main ones are identified. The conclusion is made about the most important methods of reconstruction from a functional and planning point of view, which allow transforming stations into modern transport interchange complexes.

Keywords: transport interchange complex (TPC), transport system, transport complex, railway station, railway station, transport junction, railway junction, modernization of the station, reconstruction, reconstruction of the station, methods of reconstruction

During the construction, overhaul and reconstruction of highways, various transport and technical and hydraulic structures, timely and effective drainage of ground water through the use of high-quality drainage systems is of paramount importance. It is well known that the main cause of deformation and destruction of the roadbed is both surface and ground water. It is necessary to ensure good filtration capacity, high water permeability, strength characteristics and reliability of the drainage system, thereby increasing the bearing capacity of the roadbed throughout the life cycle of the structure used. The authors of this article decided to set up an experimental section of the drainage system in the summer, during the period when the UGV is the lowest. A trench with the lowest permissible slope of water intake pipes is arranged primarily, depending on their diameter, they should be in the range from 0.001 (at d = 500 mm) to 0.007 (at d = 150 mm) and a depth of 40 cm below the UPG. The width of the trench is 45-50 cm larger than the diameter of the pipe. The bottom of the trench is leveled and compacted. After the trench is installed, a leveling layer of sand with a filtering capacity of at least 5 m / day is laid into it. and a thickness depending on the type of soil (loamy 15 cm, clay at least 20 cm), which is covered with a geotextile cloth so that the edges come out of the ditch with a sufficient margin for subsequent closure of the structure. The horizontal tubular drainage system should include inspection, drop-in and receiving wells. At the bottom of the trench, already with the geotextile laid, crushed stone of a fraction of 10-20 mm is filled in, with a layer thickness of 30 – 40 cm. Then the laying of drainage pipes begins, from the drainage well, in compliance with the slope. The next step in the installation of drainage pipes will be filling them with a layer of crushed stone, about 20 cm thick, and its subsequent sealing. After that, the structure is wrapped with geotextile cloths located on the surface with minimal overlap on each other, securing the joints with a rope or thin wire to prevent disclosure. The remaining part of the trench is filled with local soil with its layer-by-layer compaction.

Keywords: pipe filter, drainage system, non-woven geotextile, drainage pipe, filtration, water permeability, surface density, life cycle of the structure, ring stiffness

The article analyzes the accident rate in the city of Khabarovsk for 2011-2021, determines the indicators of the severity of incidents, the severity of consequences and social risk. The regulatory documents that regulate the placement of advertising structures in the Russian Federation are considered. The data of a public opinion poll on the impact of advertising structures on road safety in the city of Khabarovsk are given. It was determined, by the method of topographic analysis, the number of advertising structures that should be dismantled in Khabarovsk in accordance with clause 5.1 of GOST 33027-2014. To carry out topographic analysis, a geoinformation model was created in the Qgis software package, which combined data on the places of concentration of accidents in the city of Khabarovsk for 2021 and data on the locations of advertising structures in one coordinate system.

Keywords: advertising constructions, traffic safety, traffic accident, accident rate, accident focus, social risk

Winter roads are winter roads that are temporary in nature and their construction takes place directly from the snow cover. Complex construction of roads with the use of optimizations created for temporary and economic efficiency, improving the quality of the final result, will increase the effectiveness of decisions made during the construction of winter roads. Improving the efficiency of detailed factors in the construction of winter roads, which affect the result of further work of calendar construction, will allow for faster delivery of materials, personnel and equipment to hard-to-reach objects, within the conditions of the Far North. Winter roads are the most profitable solutions in tundra conditions, since the method of using air transport to deliver materials, equipment and workers is economically unprofitable and less safe. Therefore, the timely construction of winter roads is so important for remote regions.

Keywords: highway, road, construction, winter construction, winter truck, "Polar elephant", road construction, seasonal construction, optimization, efficiency

The construction of winter roads in the Russian Federation is determined by the geographical location and climatic features. Most of the territories are located in unfavorable climatic zones, and there are also settlements, accessibility to which can be realized by means of temporary roads. The process of erecting such engineering structures is expensive and labor-intensive. In order to reduce costs, it is necessary to modernize technologies and ground transport and technological facilities. The proposed combined machine based on the KamAZ vehicle is a technical solution that allows to reduce the time and cost of building winter roads. The article considers the configuration of components and assemblies of a modernized machine for the construction of winter roads based on KamAZ, as well as a calculation of the power balance.

Keywords: winter road, melting, technique, power source, consumers, balance, versatility, economy, application, working units

The paper presents the classification of the main causal aspects of the occurrence of catastrophes of large-span bridge structures, given with elements of the analysis of actual examples of the destruction of structures of various types. Also are described the innovative developments applicable in the field.

Keywords: fatigue failure, bridge, large-span bridge, failure of structures, destruction of bridge structures, accident in construction, resonance, wear, aerodynamics of bridge structures, stiffness beam, bolted joint

The paper presents the systematization of the main methods for increasing the rigidity and stability of the cable-stayed and hanging types bridge structures , its given in conjunction with the analysis of the real objects. Among the methods presented are such techniques as: improving the quality of the material; additional structural elements that perceive vibrations; modification of the main elements of the design scheme. Also in the paper innovative developments applicable in the field of study are described.

Keywords: transport structure, bridge, cable-stayed bridge, suspension bridge, bridge construction, guyed, pylon, rigidity of the bridge structure, stability of the bridge structure, operational safety of the bridge, aerodynamics of the bridge

Article is devoted problems of safety of traffic. In given article are sounded a number of the reasons of occurrence of failures on highways. In article questions of influence of psychophysiological features of drivers on occurrence accidents are considered. The special attention is given that use of cellular telephones by drivers (despite prohibition by traffic regulations), and also every possible advertising materials in sight of drivers do not promote concentration of attention on driving process. Also in article questions of increase of safety of pedestrians, as participants of traffic are mentioned. In article the interrelation between road conditions and safety of traffic is investigated. That fact is marked, the reasons of adverse influence of road conditions can be obvious and hidden. In article the developed practice of roads design is analyzed. The given practice, in a due measure, does not consider requirements of landscape designing. Which, in turn, though are registered in the arch of rules, but have recommendatory character. Also in article questions of use of the minimum parameters of highways are mentioned at its designing.

Keywords: Safety of traffic, accidents , a highway, the driver, the pedestrian, roads design, a road condition, road conditions, intensity of movement, the road maintenance, landscape design of road

Porous concrete is a new type of concrete with high permeability of water flows. It is advisable to use this type of concrete in road construction for the device filtration zones. This will allow to remove water from the carriageway, especially in places where there is no storm sewer. Infiltration of water flows through concrete pavement coatings contributes to their rapid removal from the surface, reducing slipperiness and water planning. The use of macroporous concrete will minimize flooding of car parks and roads. The results of the study confirm that permeable concrete surfaces function stably over time and are not silted with sand and soil.

Keywords: porous concrete, permeable surface, filtration, storm sewage, water

The article discusses the use of reinforced polymer fibers in architectural and structural design of bridges on the example of structures in the Netherlands. The chemical structure of this material is presented - a polymer matrix reinforced with natural or artificial fibers. A brief historical background of the use of composite materials is given, a comparative analysis of structures made of new construction material and the traditional one is carried out. The problems and possibilities of this relatively new material are discussed. The variants of constructive solutions for the bridge construction of a new generation are proposed. The basic methods for the production of bridge components that meet aesthetic and economic requirements are described: the use of modular elements of the edges of the flooring, the construction of smart formwork and monocoque structures. The physicochemical properties of polymeric materials have been studied in detail, of which it is currently possible to manufacture reinforcement for bridges. In conclusion, the analysis of the effectiveness of the use of this material in architecture and construction over the past decades has been carried out and suggestions have been made about the future vector of the study and application of polymers.

Keywords: biocomposites, bio-resins, composite materials, lamination, monocoque structures, bridge deck, bridge construction, pultrusion profile

The paper considers the existing analysis of traffic at the intersection of Ave. Lenina - st. Koroleva. A new scheme for the organization of traffic at the intersection is proposed, the calculation of the traffic light cycle is carried out, taking into account the introduction of new traffic lights. The results of the research will allow solving a number of problems of the road complex of the city of Donetsk to improve the transport and operational status of the existing network of public roads of local importance and the structures on them, bringing the technical parameters and the level of engineering equipment of the roads in line with the achieved traffic intensity.

Keywords: road safety, traffic management at the intersection, traffic light traffic control

The paper considers the existing analysis of traffic at the intersection of Ave. Lenina - st. Maxim Gorky. A new scheme for the organization of traffic at the intersection is proposed, the calculation of the traffic light cycle is carried out, taking into account the introduction of new traffic lights. The results of the research will allow solving a number of problems of the road complex of the city of Donetsk to improve the transport and operational status of the existing network of public roads of local importance and the structures on them, bringing the technical parameters and the level of engineering equipment of the roads in line with the achieved traffic intensity. The article was published as part of the implementation of the program of the International Forum "Victorious May 1945".

Keywords: road safety, traffic management at the intersection, traffic light traffic control

The article deals with the problem of pedestrian crossings and congestion of highways of the city of Volgograd. It described the situation on the highways and solutions to eliminate congestion on the road. Car traffic was conditionally divided into 3 categories: transit, the transit from the center and the car flow moving into the center. Studied the question of the safety of pedestrians on the road, because, except for pedestrians with the intersection increases their safety. The study and analysis of all previously implemented measures was proposed construction of underground pedestrian tunnels. Several embodiments of tunnel junctions have been considered. Analysis of the current transport situation revealed the busiest places in the city center.It was noted that the construction of underpasses solve the problem of vehicular traffic in the city center and pedestrian safety, and the city will have new underground space.

Keywords: Сar flow,highway, tunnel transition, transit transport, carriageway, longitudinal,security,road traffic

This article describes the approbation of the humidity sensor in the real operating conditions of the road. The authors have developed a protective design of humidity sensors that meets the requirements for their laying in the ground floor, developed a mobile portable data reader. The technology of calibration, calibration and laying of sensors in the soil of the roadbed is presented. The analysis of the data obtained after calibration of the sensors.

Keywords: the soil subgrade, moisture monitoring in the conditions of the road, the humidity sensors

The main purpose of this work is to determine the optimal operation modes of vibratory rollers, which contribute to the effective compaction of sandy soils. The relevance of the article is due to the need to apply different methods of work of vibrating rollers when compacting sandy soils, taking into account constantly changing conditions. The article reveals the dependencies of the main indicators in the production of compaction: the speed of the roller during compaction, the weight of the roller, the thickness of the compacted soil layer and the number of penetrations. The practical significance lies in the possibility of determining the optimal operating modes of various vibratory rollers during the compaction of sandy soils, which will determine the most productive and economically feasible parameters of their use

Keywords: compaction, compaction efficiency, vibration roller, sandy soil, compacted layer thickness

In the construction and use of software technologies, including roads, using GIS and CAD technology. We can also use technologies without data to work with attribute information. GIS is used to manage a large number of different-scale information on construction, reconstruction,etc.Any construction consists of several stages, including the construction of roads, starting, as we see from the planning, then the design and coordination of objects and putting it into operation. GIS during construction is considered in conjunction with all stages., at what first analyze the location of the object on the map. GIS in construction is one of the most important links in the overall planning system.

Keywords: construction, geographic information systems, reconstruction,management, stages, planning, digitization, route, facilities, road

The construction and repair of the road network, taking into account the use of new materials, technology and, accordingly, technologies, raises the question of improving the management system of work methods and the targeted use of road construction machinery. The constructed algorithms for the constant monitoring and control of the execution of work on the objects are based on the methods of pattern and character recognition. This control system monitors and controls the movement of construction equipment and functional operations performed by the working bodies of road-building machines in real time. The search and selection of optimal solution algorithms, both managerial and production tasks, is based on solving problems in conditions of uncertain factor space and on the basis of economic justification. The main criterion for the advancement of production automation is economic feasibility.

Keywords: integrated mechanization and automation of road construction works, automated control systems, pattern recognition, 3D model, information systems, uncertainty, factor space, structural layers, road bed, auto grader, machine

The developed equipment is being created to increase the cost savings during the construction of the road infrastructure, to improve the quality of temporary winter roads, as well as to build them more quickly and conveniently. This technique replaces two cars in the construction of auto winter roads.

Keywords: auto-wintering, melting, combination, versatility, innovation, snow melting unit, economy, application, design, methods

The developed version of the snow plow plow is created in order to improve the performance of a single unit of equipment when clearing snow on wide streets and to preserve unimpeded movement in a dense stream of cars, as well as the use of technology on narrow streets

Keywords: clearing, productivity, folding, trails, KAMAZ, transportation, costs, area, speed, snow

The article deals with the problem of the functional state of the bridge park in Russia. The statistics of the number of bridges, newly built bridges. Attention is focused on the inconsistency of old bridges with modern regulatory requirements for safety, carrying capacity, and carrying capacity. Noted on the relevance of flood impact on bridges and roads. The causes of occurrence are described. The problem of flood forecasting is highlighted. Examples of accidents of bridge structures from the effects of water flow are given: sediment, roll of supports and abutments, erosion of the embankment approach. Based on the situation in the city of Chita, the statistics of the frequency of flooding in different years are given, the critical levels of these disasters are indicated, and statistics on the consequences of the impact of the flood is given. The impact of the normative water flow is considered, and it is proposed to analyze the effect of the excess flow arising from the maximum level of bottling. Presents the results of calculations for which comparisons are made of various approaches to determine the depth of erosion of the channel.

Keywords: bridges, flood impact, safety, bridge destruction, regulatory documents, erosion depth, water flow

This article is dedicated to one of the symbols of Volgograd city, which is the Astrakhanskiy Bridge. We described the history of creation and the technical specifications of the bridge over the Tsaritsa river. After conducting an investigation, some defects in the bridge construction were uncovered. The framework arcs have longitudinal cracks, the protective layer of concrete is destroyed; the longitudinal main reinforcement is exposed and corroded. The protective layer of concrete was removed and the longitudinal main reinforcement was corroded on the longitudinal beams. During operation of the bridge, the defects that decrease load capacity and durability appeared: destruction of the protective layer of concrete on a plate of about 2 square meters. This led to the beginning of corrosion of the lower reinforcement net. Steel brackets, holding the walkway slabs, are heavily corroded; the protective paint coating on them is destroyed over significant lengths. The analysis of detected damage allowed to evaluate their impact on the durability and load capacity of the construction and determine those, who are responsible for its occurrence. It is noted that postponing of repair operations has a negative impact on the state of the bridge.

Keywords: bridge, city symbol, superstructure, roadway plate, defects, arch, bridge system, bearing structures, durability, load capacity

In this paper, the authors present a method for estimating the longitudinal adhesion coefficient of motor vehicles with road covering on approaches to level crossings. A feature of the technique is the possibility of using as input data in assessing the coupling qualities of road pavements, a large number of variables characterizing both moving vehicles and road paving combined with weather and climate factors. A multi-factor assessment of the adhesion coefficient at approaches to level crossings contributes to the improvement of traffic safety at railroad crossings as part of the development of a road maintenance management system

Keywords: adhesion coefficient, level crossing, road maintenance, fuzzy decision tree

This article considers the use of asphalt as the main component of the cold organo-mineral mixture intended for patching of city streets and roads during the off-season. The General characteristics of mixtures and their components are given, the pros and cons, as well as the possibility of their application are given. As a powder emulsifier and activator, it is recommended to use lime-containing waste (calcium oxide hydrate) of the chemical industry.

Keywords: organo-mineral mixture, asphalt granulate, asphalt concrete, road construction, binder, lime-containing waste