In article traffic safety and capacity of bridge crossings is considered. The road accident which happened on the bridge crossing sharply reduces its capacity and, therefore, all road in general. At emergence of danger to the movement in difficult road conditions the driver is compelled to apply the emergency braking. Thus the road accident won't occur when a distance between cars more or is equal to the size of a stopping way. At determination of length of a stopping way of the car at the emergency braking values of sizes of time of delay of operation of the brake drive and time of increase of delay are used.

Keywords: traffic safety, bridge crossing, capacity, stopping way, distance

The main problems of Russian transport infrastructure are considered. On the example of European experience the ways of solving these problems are proposed. The article also discusses in more detail the transport situation in the city of Rostov-on-don, what are the problems and how they can be solved in the near future.

Keywords: transport infrastructure, highways, Parking, concept, neighborhood, traffic flow, car, Parking, building, congestion, flow, disaster

The process of designing open-cast mining, in particular a quarry, is justification of technical solutions, economic efficiency, environmental and industrial safety of the construction of a new or reconstruction of the old quarry, identification of its key parameters characterizing the quarry as an industrial facility. The article raises the question of providing the enterprises of the oil and gas industry with construction materials, and, in particular, the project side of the main stages is being studied. So, in the article the features of engineering surveys, geological exploration and design works are studied in detail. The section ""Surveys"" describes the composition of the full complex of engineering surveys, the necessary grounds for their performing, as well as the requirements for their implementation. In the ""Design"" section, the composition of project documentation for the quarry development is studied in detail. The strategic tasks, which are solved by the project of common mineral resources deposits open development, are presented. The article reveals the main design (technical) solutions that should be adopted at various stages of the project documentation development. Special attention is paid to the disturbed lands reclamation section. The project stages are also described. In the section ""Obtaining the right to use a subsoil plot for the purpose of commonly used minerals mining "", the process of licensing of quarries and possible schemes for registration of rights is described. The conclusion is made about the need for further development and modernization of normative acts regulating relations for the preparation of project documentation.

Keywords: elaboration of design documents, design, stripping, common commercial minerals, quarry, engineering survey, geological exploration, licensing, mining rights

The possibility of revealing the main defects that arise when strengthening reinforced concrete structures by external reinforcement systems based on carbon fibers is considered. The efficiency of active and passive methods of thermography is compared, and the possibility of using the passive method at negative ambient temperatures is considered. Under laboratory conditions, ferroconcrete samples with defects in the form of air bubbles and glue were made and a comparison of the mapping of these defects on thermograms was made.

Keywords: composite materials, reinforcement, external reinforcement systems, infrared thermography, defect, work quality assessment, technical condition assessment, span structures, bridge supports

In article traffic safety in intensive transport streams on bridge crossings is considered. In a case when the bridge crossing has on one lane in each direction, at repair of a half of width of the carriageway - density of a transport stream sharply increases. The increase in density of a transport stream leads to change of speed of the movement of vehicles and to reduction of minimum safe distance between the cars moving in the passing direction on the bridge crossing during its repair or reconstruction. At the movement of vehicles with minimum safe distance specified in the table the maximum capacity of the bridge crossing at its repair or reconstruction will be provided.

Keywords: traffic safety, bridge crossing, intensity of the movement, repair of the carriageway, minimum safe distance

This article focuses on a method of drone-assisted assessment of road transportation and exploitation conditions. The nature and types of defects to the road surface and their effect on calculated speed of motion are registered based on the inclusion of a private coefficient. This coefficient is calculated based on the presence, amount, and relative area of motion. The algorithm of this method is implemented as a software programme, which allows to increase operational accuracy of the calculation. Additionally, the developed method allows to implement expedited assessment of an automobile road's transportation and exploitation conditions.

Keywords: automobile road, road surface defects, transportation and exploitation conditions, air drone

Article is devoted questions of road design taking into account its visual smoothness. In article questions of influence of visual smoothness on the providing by it of velocity of movement of vehicles are considered. 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. The necessary increase in the minimum parametres of norms of designing for maintenance of movement of vehicles with settlement speeds is recommended. The special attention in article is given transitive curves as their use at observance of principles of coordination of elements of the plan and a longitudinal profile provides visual smoothness and clearness of a line of a highway. It in turn raises traffic safety on these lines. The considerable attention is given the analysis of technical and psychological safety, as to the reasons of emergencies on roads. In article raising factors of values of radiuses for achievement of psychological comfort by the driver are offered at passage of curves to the plan.

Keywords: Road line, longitudinal profile, visual smoothness, landscape designing, radius of a horizontal curve, spiral curve, safety of traffic

The article presents a study of the existing practices of the use of toll roads on Federal highways of the Russian Federation, with the designation of the main advantages of users of toll roads and road facilities defined primarily by saving operating costs (transport costs) when traveling on a toll road, by reducing the consumption of fuels and lubricants, tire wear, repair costs and costs for other items of operating costs, and also saving of time of delivery of freights and passengers increase of comfort and safety of the movement

Keywords: a toll road, the toll gate, efficiency, savings, vehicle, the alternative road

Article is devoted geodetic researches, as the most important at designing of highways and airdromes. The complexes of works made at researches and designing are considered. Importance of topographical shooting of district by geodesists for creation of new cards, in the absence of cards, plans in contemporary records is noted. The special attention in article is given the modern geodetic equipment, such as: electronic recording tacheometer, GPS - antenna, and the 3D- scanner. These devices, their versions, scopes are in detail considered. The purposes and problems GPS of measurements, and also methods of work GPS of receivers are considered. In article- geodetic maintenance at building of elements of an airfield is in more details considered. Kinds of the works, which are carried out by geodesists, are designated. It is noticed that use of the modern equipment and software product AutoCAD, AutoCAD Civil 3D, CREDO, GENERAL PLAN Geonics, etc. To analogues of these software allows to save not only time for processing of field measurements, but also to carry out continuous control of a thickness of separate layers at packing that, in turn, leads to economy of means. In the conclusion authors underline special importance and responsibility assigned to geodetic service. It is noticed that introduction of the innovative equipment in all structures of road building will undoubtedly set good rate in development of a network of highways and airdromes.

Keywords: Geodetic researches, highway, electronic recording tacheometer, GPS - antenna, laser 3D - the scanner, topographical shooting, airdrome, aerial photography

In is paper investigated and confirmed the Deposit of bentonite clay on the studied road section of Osh-Isfana. Osh-Isfana road is an international meaning road. The road is located in the Nookatsky district of Osh region of Kyrgyz Republic and connects the two regions and gives access to the territory of neighboring States – Tajikistan and Uzbekistan. Overestimation of the roadbed with moisture is an extremely dangerous phenomenon, since the strength of the pavement and the stability of the slopes of the mounds and excavations are greatly reduced. When designing the basis of the road on collapsible soils are equally important inside the event with the aim of reducing the likelihood of soaking the soil. The recommendations on the use of local building material as a waterproofing layer of the road structure, interrupting the movement of moisture, while ensuring the removal of water from rain and snow melt.

Keywords: slope, water-heat regime, sediment, moisture, waterproofing material, X-ray spectral analysis, shale clay, bentonite clay

The article contains an analysis of the shortcomings of the majority of existing stabilizing additives for shale-mastic asphalt-concrete mixtures. In the paper, the results of the use as a stabilizing additive for blast-mastic asphalt-concrete mixtures of a composition consisting of cellulose fibers treated with organic binder and mineral fiber are considered.

Keywords: stabilizing additive, crushed-mastic asphalt concrete, cellulose fiber, mineral fiber, bituminous binder, road surface

The article deals with the design of bimetallic bridges, their advantages in comparison with reinforced concrete bridges. Its given the characteristics and chemical composition of conventional bridged steel and high strength steels. The scheme of dividing continuous lash of span structure into spans is considered and the ratio of spans with equal bending moments is calculated. Its given the calculation of an effective three-span system. The existing efforts and bimetallic standard blocks of three types are proposed for them. Blocks are made of two types of steel: conventional cross section of bridge steel, heavily loaded cross section of structural high tensile. In block A, the lower belt; in block B the lower belt, the wall and thongs of the orthotropic plate; in block K the lower belt and the beam wall is made of strong steel. Such unification will significantly reduce labor intensity and weight of the structure.

Keywords: bimetallic, span structure,steel grade,enveloping the diagram, normal stresses, mounting block, sheet hire

The problems of reconstruction of transport infrastructure and road network in residential areas are very important. Transport directly affects the labor and cultural activity of the population, largely determining the technical and social progress of society. Transport highways and street-road network form the frame of the city, form its planning structure. Gravity retaining wall in cross section is a trapezoid with base width of 1.0 m and a width of the top of 0.3 m. the length of the angled sections of the retaining walls were determined from the conditions of placement of the pit for their buildings, side streets the Moscow highway and technical strip for lining of engineering communications. The front surface of retaining walls has a curvature of R=15.8 m. similar to the front surface of the side walls of tunnel overpasses. Frame retaining walls are an inverted U-shaped frame. The front surface of a retaining wall, consisting of paired radial curves of radius R=15.8 m and R=1.8 m. the curvature of the front retaining walls similar to the front surface of the side walls of the underpasses of tunnel type.

Keywords: problems of road construction, roads, reconstruction, Kurumoch, strip, public transport, planning, transportation

The paper presents the results of a study of the physico-mechanical properties of the granular colorless binder "Recofal" and polymer concrete prepared on its basis.

Keywords: Colored polymer concrete, granular binder "Recofal", physical and mechanical properties, polymers, pigments

АнглийскийПеревести вGoogleBingThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the projectThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the project

Keywords: permafrost, perennial cryolithozone, quarries, sand, sand, career preparation to sand mining, development of oil and gas fields.production

Repair of the bridge superstructures made to restore the performance of the facilities from damage incurred during operation. The main technical measures to improve the durability of structures buildings are reconstruction work on the prevention of water penetration from the roadway construction on the underlying design of superstructures and supports. Repair badly damaged sections of shelves extreme beams of the superstructure shall be mopping up indicators of acidity of not less than pH> 12 (concrete), followed by reduction of the dimensions of the concrete B30; F300 (in Spanish hlor.solyah.); W8 with pre-staging of additional rebar epoxy glue. Repair surface defects superstructures beams includes: To prepare and clean the defective concrete surfaces slabs beams superstructures sandblasting method, a chemical cleaning of the valve; Repair of surface defects of slabs beams non-shrink fast-hardening dry mix containing polymer fiber EMACO®90 and EMACO ®S88C; To restore the protective layer thickness of 20 to 40 mm is provided the use of a repair composition EMACO®S88S. For hydrophobic facades superstructures, attachments, etc. used water repellent water-based to protect concrete surfaces, which is designed for use on old and new concrete surfaces of bridges MASTERSEAL®303V.

Keywords: repair; concrete bridge; superstructures; fittings; waterproofing; anti-corrosion coating; MASTERSEAL; EMACO

In the article the results of the analysis of the main factors affecting the wear mechanism of asphalt concrete pavements are given attention to the properties of the stone material and the binder. The questions of the influence of dust formed as a result of deterioration of coatings on the environment are considered.

Keywords: asphaltic concrete, road surface, environment, wear products, wear resistance, wear factors

The assessment of the quality of the production of works on the construction of the upper layers of the road cover by the destructive and non-destructive method is considered, both methods are compared by searching for the main advantages and disadvantages. The order and the scheme of the production of each of the estimates are described.

Keywords: motor roads, quality assessment, road facilities, gamma density meters, electromagnetic (dielectric) densitometers, radioisotope densitometers, densitometer

In this article we consider correspondence problem of the supporting parts containing deformable polymers used in the beam bridges (used in bridge constructing - лишнее, мне кажется). According to the shear diagram, supporting parts shall provide free angular and linear displacements of the beams' end faces sections. Otherwise gradual destruction of the nearby areas is possible. We study a rubber supporting part (RSP). Factors contributing to the deformation of the supporting part and their calculation with different algorithms, including the differential equation of the curved axis and Mohr method are given. The values of angular and linear deformations for the concrete reinforced bridge beam are calculated.

Keywords: bearing, adjustable bearing, deformation, bridges, bridge beam, shear strains, angular displacement, linear displacement, crumple.

The article is devoted to the topic of interdisciplinary balance in the solution of problems of the urban transport systems development. On the example of the concept of the transport system in Yekaterinburg development, the authors suggest ways of introducing interdisciplinary research: the author's multi-criteria system for assessing the transport system is proposed. The introductory part of the article is devoted to the formulation of the main goals and tasks of the development of transport systems in the Russian city. When considering the transport system in Yekaterinburg, it is proposed to use the zoning of the city's territory to formulate strategies for its development, taking into account local conditions. Also, the authors propose to take into account at the project level various international trends in the development of transport systems.

Keywords: transport systems, master plan, urban planning, interdisciplinary research

Nowadays the manufacturers offer a variety of mobile road laboratories, which are equipped with systems for measuring the automobile roads' properties and further assessments of their exploitation conditions. The absence of one or several of these systems in the lab equipment leads to the price reduction for consumers; however, it also lowers the effectiveness of the diagnostic process. This article suggests that preliminary research of the effectiveness of the automobile road diagnostic process be conducted using mobile road laboratories in various implementations by the means of an imitation model design. The main indicators of the effectiveness will be time spent on the road section diagnostics as it constitutes the labour costs, the necessary amount of fuel, and the overall funding. This diagnostic process model is implemented using a computer programme. It calculates and assesses the road conditions that may affect the laboratory's speed, number and duration of stops necessary for manual measuring which depends on the proper equipment. The designed model allows to analyze the duration of time spent on road diagnostics. The results allow for advance assessment of the financial expenses, including the cost of labour, together with diagnostic planning of the automobile roads of a given region and its specifics.

Keywords: automobile road diagnostics, model design, road conditions, effectiveness research

This article analyzes the existing technical means designed to monitor automobile roads and transportation infrastructure, including their main disadvantages. It demonstrates the research results of the potential capabilities of the existing technical means for creating a multifunctional mobile road laboratory, implementation of which would allow to solve a wider range of tasks. These tasks amount to measuring in unfavourable conditions, including the roads without hard surface, searching for automobile roads, conducting water barrier research, and identifying the nature of large damage to the automobile roads and transportation infrastructure. The multifunctional laboratory's equipment is based on the existing technical means, which are resistant to the negative environmental factors. Moreover, some systems are subject to amelioration and additional design, particularly the transverse surface evenness measuring system. Besides the traditional technical systems, which equip the existing mobile road laboratories, the usage of aerial drones is also suggested.

Keywords: automobile road monitoring, transportation infrastructure, road laboratory, aerial drone

This paper presents an analysis of domestic and international experience in the construction of modern non-rigid pavements. An assessment of existing structures on roads with high traffic volume; designated directory structure of non-rigid pavements, developed on the basis of the research.

Keywords: construction, non-rigid pavement, structural layers, the total number of rated load applications, traffic load class

An approach to assessing the safety of road traffic in the context of emergencies is developed based on an integral indicator of traffic safety, the use of which allows taking into account various factors affecting safety

Keywords: traffic safety indicators, emergency situation, traffic safety assessment, road, integrated indicators

Considered the work to be undertaken during the reconstruction of the road network of the city of Penza, and, in particular, the viaduct over the river Sura. The analysis of the major defects giving rise to the reconstruction of the bridge. Presents the main decisions and the progress of the works themselves.

Keywords: the bridge span, corrosion, bearing capacity, pile wrap