Introduction. Nowadays there are various manufacture methods of pipe taps. One of the most laborious operations during manufacture is a marking of pipe taps for subsequent machining. Work layout operations are performed using special tool ware and outfit. These operations are performed manually and it leads to the decrease in accuracy and to the increase of laboriousness. The authors suggest the method of determination of the latent base of pipe tap (average plane) using an anthropomorphic robot. The results of research would help to make the virtual calculation of tool position of the anthropomorphic robot for marking and to generate the robot trajectory. Ultimately, such research would also decrease laboriousness and increase accuracy of marking operation.
Materials and methods. The authors suppose to use latent base, namely the average plane of the pipe tap as a measuring base. The robot is calibrated from the base plane placement and chooses the shortest circular arc by comparative approach. Therefore, such shortest arc would form the average plane. The authors carry out the determination of the curve line length by the triangulation method using the interferometer.
Results. The result of the research is the technology development for determination of latent base in the average plane form.
Discussion and conclusions. The proposed method of latent bases determination of pipe tap would allow making the automated system of marking of pipe taps. Moreover, such method would help to reduce time of performing operations as well as to decrease the manufacture laboriousness on the following stage of technological process.

Introduction. The paper examines the overall and local stability of a telescopic boom (TS).
Materials and methods. The author uses methods for analytical research of oscillatory systems with a finite number of degrees and methods of the Deformable Solid Mechanics, such as Material Resistance. Moreover, the author applies Solid Edge Simulation as finite element analysis program based on FEA Femap analysis technology and the NX Nastran solver.
Results. As a result, the author develops a methodology for monitoring the overall and local stability of the vehicle. The usage of the calculation for the overall stability of the vehicle allows to determine the load-height characteristics, parameters of the working equipment that ensure the steady state of the system, and also to track the overall steady state of the vehicle as a function of the vehicle characteristics. In addition, the usage of local stability calculation allows to track the maximum stress state of the vehicle, which is a criterion of local stability and provides the ability to monitor the stability of the most loaded shelves and walls. The proposed method for calculating the stress state takes into account the combined effect of external and local horizontal and vertical loads.
Discussion and conclusions. The usage of methods of monitoring the overall and local stability of the vehicle allows to set automatically the most optimal characteristics of the working equipment, including the developed method in the crane safety system, and to increase the level of safe operation of load- lifting cranes equipped with vehicles.

Introduction. Currently, manufacturers of vibrating plate compactors practically do not give recommendations on the choice of model and justification of the equipment operating modes when compacting the soil in specific process conditions. This is partially due to the lack of a methodology for determining the results of soil compaction with vibrating plate compactors. One of the development stages of such technique should be the analysis of the technical characteristics of vibrating plate compactors, which could reflect experience in the production and operation of the equipment.
Materials and methods. The authors conduct statistical processing of technical characteristics of vibrating plate compactors in STATISTICA 10 based on 65 models of various manufacturers from Russia and other countries.
Discussion and conclusions. The authors demonstrate that the operating modes of vibrating plate compactors are between the operating modes of vibrating rollers and self-propelled vibrating plate compactors. To note, relative driving forces are in a similar range as the working range of self-propelled vibrating plate compactors, and their vibration frequencies are in a similar range as the working range of vibrating rollers. Moreover, low values of the determination coefficient for oscillation frequency and relative forcing force depending on the mass of the equipment also indicate the lack of consensus among manufacturers about the required characteristics of vibrating plate compactors and an assessment of their technological capabilities.
Due to a significant excess of driving force of vibrating plate compactors over their weight, the base of the plate should come into partial uplift from soil, and that should be taken into account while the mathematical model of interaction development between vibrating plate compactors and soil. Practical implications. The results of the analysis reveal the peculiarities of the vibrating plate conductors’ interaction with the compacted soil and also clarify the requirements for the future mathematical model. The resulting regression dependencies of driving force and oscillation frequency, as well as the base dimensions of the vibrating plate compactors, the weight of the excavator and the required oil consumption should be taken into account when developing a methodology for determining the results of soil compaction with mounted technological excavator plates. Therefore, the obtained results could also be used by manufacturers in the design and modernization of the vibrating plate compactors’ structures.

Introduction. The production of precast concrete compaction of concrete mixtures is most often carried out on vibration platforms with the use of additional cantledge. Equipment operation is carried out in the mode, in which the oscillation frequency is higher than the resonant. With the turning on the vibration exciter, the entire system (vibration platform, product shape, etc.) passes through the resonance, which is accompanied by increased vibration amplitudes.
Materials and methods. The authors applied the experimental method of the research of the dynamic braking process of the inertial vibrator. The parameters of the deceleration and oscillation of the desktop were recorded by the computer monitoring installation.
Results. The ending of the product compaction process is characterized by increased oscillation amplitudes of the desktop. At the same time, air could be sucked into the product and the lamination of the mixture could take place, which adversely affects the quality. This effect is observed with the vibrator turning off. To reduce the negative phenomena from the passage of resonance, especially at the end of the sealing cycle when the product is already formed, quickly stopping of the vibration exciters of the technological installation could be applied. The paper presents the results of experimental studies of various methods of the vibrator rotors braking. The authors give comparative characteristics of the braking process.
Discussion and conclusion. The authors give recommendations on the use of the most effective braking schemes of the inertial vibrator.

Introduction. Road capacity refers to the main indicators, characterizing the working conditions of streets and highways. For the street capacity as a whole the minimum value of a certain section is taken, which includes adjustable intersections in one level.
The capacity of intersections in one level largely determines the performance of the entire city transport system, the level of comfort and safety of movement. Therefore, the increase of the regulated intersections’ capacity is necessary not only for improving the traffic conditions, but also for improving the economy and movement comfort of the entire stream of cars on the street.
Materials and methods. Traffic jams form almost on all regulated intersections of the city and stretch more than ten meters. Traffic jams becomes commonplace not only during rush hours, but also during the whole day.
Results. The paper presents the results of the dynamic research of the adjustable intersections’ throughput observed while changing the parameters of the traffic lights’ cycle.
Discussion and conclusions. The authors monitor the traffic flow conditions on the regulated intersections of Bishkek to study the degree of influence of the traffic light regulation cycle parameters on the road capacity of the regulated intersections in one level. The authors select 6 problem intersections as research objects.

Introduction. Law changes concerning road service and cargo traffic rules lead to the necessity of maximal axel load calculating during the cargo transportation. Such problem is particularly important while friable cargo transporting, as accelerating or breaking cargoes (road-trains) at a longitude inclination or turning could provoke partial lading shift towards the cargo axles. The paper demonstrates the results of friable cargo offset experimental research (grail, broken stone) while transporting. Moreover, the authors also describe influence of the friable cargo offsets on freight transport axle load changing.
Materials and methods. The research measured friable cargo level in the road-train semitrailer before and after the experiment, axle weighting and the full mass weighting. In addition, the authors made video filming of friable cargo offsets.
Results. Analyzing the experimental data of axial weighting, the authors noted that during the friable cargo transportation, the cargo was redistributed inside the semitrailer and such process led to a change in axial loads of the road-train. The axel load changing was not included into the measurement accuracy and was about 1,4 – 4,9%. Another argument of the friable cargo shift inside the semitrailer was cargo video filming while transporting. Video analysis showed that both chip stone and gravel was moving inside the semitrailer while the road-train accelerated motion.
Discussion and conclusions. As a result, the research proves the experimental verification of the friable cargo offset over the semitrailer ramps while braking. Such offsets lead to the changing of freight transport axle load.

Introduction. The paper describes the method of increasing the capacity of transport interchanges, providing entry into the city, on the example of Belgorod and through the introduction of traffic light control system - Ramp metering. The authors investigate 4 transport interchanges at the entrances to the regional center and evaluate geometric parameters of the congresses. Moreover, the authors select the optimal site for the implementation of the Ramp measuring system, basing on the analysis of geometric parameters and calculations of intensity parameters and time delays.
Methods and materials. The use of intelligent transport systems in cities and urban agglomerations traffic management allows minimizing vehicles delays and such method is quite topical for traffic organization at peak times and reduction of accidents through the use of intelligent machine control of the vehicle flows.
Results. The authors develop the approach to the intelligent transport systems’ usage at the entrance areas to the cities and urban agglomerations, which takes into account changes in the basic parameters of traffic flow and geometric parameters of transport interchanges.
Conclusion. As a result, it is necessary to use intelligent transport systems through the introduction of Ramp measuring system, as well as through the study of changes in the basic parameters of traffic flow and geometric characteristics of urban transport interchanges.

Introduction. The paper presents the design solution of the computational model to the transverse strength resistance of reinforced concrete bending elements, taking into account the influence of bending moments.
Materials and methods. The author analyzed the methods of the reinforced concrete elements’ strength calculation by transverse force and also presented the solutions of such problem.
Results. As a result, the paper describes the calculation model of the bearing capacity of reinforced concrete elements by the transverse force, taking into account the joint action of transverse force and bending moments. The author uses the analogy between the arch with tightening and the trajectory of the main compressive stresses in the beam (arch effect) to determine the effect of the transverse force on the stress state of normal sections. Moreover, the paper concludes that one of the main regulators of the reinforced concrete elements’ reliability is the calculated value to the concrete shear resistance. The manuscript demonstrates the comparison of the calculation results by the proposed method to the previously obtained experimental data.
Discussion and conclusions. The bearing capacity of reinforced concrete elements on the transverse force depends on the strength of the concrete compressed-shear zone over cracks, the size and stress state of which are determined by the arch analogy. The application of the proposed model eliminates the empirical shortcomings of the normative calculation method and greatly simplifies the strength assessment on the bent concrete elements’ design.