Copper is one of the main components of friction materials used in vehicles’ brake systems. It is mainly used due to two features: good thermal conductivity and lubricity. Unfortunately, it is harmful no only to humans but also more to aquatic life. For this reason, there is an attempt to minimize its use. This paper presents the results of testing four groups of samples with...
Authors in the article present an original method of risk assessment, taking “human errors" into account in its assumptions, filling an existing methodological gap in this field of study. This article presents a general concept of a method: estimating risk assessment and modeling human factors as the main cause of a road accident. Fuzzy logic techniques have been used to generate...
This paper is based on the results of an experiment aimed at studying attention distribution and switching among students using a stationary eye-tracking device. The hypothesis was that the operator’s distraction tolerance should be influence by his or her general mental strength; temperament, which is a derivative of the characteristics of the nervous system; and the level of...
The paper presents the results of an experiment devoted to studying attention distribution and switching using eye-tracking technology. The experiment was conducted in two stages. At the first stage (year 2016), 48 students majoring in air traffic control were examined. At the second stage (year 2017), 43 students studying to become civil aviation pilots were involved...
In recent years, regarding the influence of the production processes and vehicles on the environment, new technical solutions for reducing air pollutions have been studied and developed. One of the new constructions is fuel cell electric vehicle (FCEV). The production and running conditions of the vehicles are specific in different countries. Hence, a study of these conditions...
The article deals with the stress-strain state of the cutters used in the mills of a new design for the restoration of the working surfaces of locomotive wheels. A comparative analysis of stresses in the cutters was carried out using the finite element method, which showed a significant advantage of the new technical solution, the novelty of which is confirmed by the patent.
The article presents the implementation in the Omsk region of the project "Safe and high-quality roads," which is currently being implemented in various regions of Russia. Studies included the development and implementation of programs for the development of roads and municipalities, bringing the urban agglomeration network into a normative transport and operational state...
Logistics activities are present in different business functions, which is why unified decision making in logistics has a significant effect on the organization of logistics processes in companies. Scientific literature highlights various aspects of logistics decision making, but so far, no survey has been conducted that can accurately illustrate the effect of centralized...
This paper deals with the issue of operating damage of combustion engine valves. It presents an innovative way and construction of a tool for strengthening piston engine valves by way of surface working. It presents the concept of machines for comprehensive surface working and for profiling the faces of combustion engine valves. It also includes the discussion of the methodology...
Ballast layer is the most weak element of railway track that causes track geometry deterioration. At the same time, it is subjected to intensive particle breakage during the corrective tamping. This causes high maintenance costs of ballasted track. The present paper is devoted to the study of tamping methods. The present machine tamping methods are considered and compared. The...
The article deals with the applicability of the three- and four-mass crumplezone models by optimization of the vehicle front crumple zone in case of a collision. The possibilities for integrating the requirements for individual crumple zones are discussed. The crumple model for special crumple zone elements has been proposed. Optimum parameter limits for the deformable elements...
The paper presents the possibilities of using light alloy components in vehicle construction. Material 6082 was chosen for use in responsible structural components. The structure and strength parameters of the material in the delivery state were tested. Tested material parameters were compared with normative requirements. The purpose of the paper is to check the mechanical...
The health style of the population has deteriorated in the last 10 years, given the possibilities offered by an increasingly advanced civilization. The paper attempts to find the answer to the question whether the development of motorization has an effect on civilization diseases. To this end, the paper began with an analysis of the registered numer of means of transport in...
The article provides and discusses results of tests of a bypass-controlled hydraulic shock absorber studied at a test stand (mechanical inductor), making it possible to plot work charts and determine velocity characteristics. Measurements of the shock absorber performance were conducted at different values of velocity and forced travel. The measurements were carried out for two...
This paper investigates the influence of alternative fuel on selected butadiene–acrylonitrile rubbers used as seals in engine and fuel supply systems of post-Soviet aircrafts. The conventional fuel Jet A-1, the synthetic blending component from hydrotreated esters and fatty acids (HEFA) and its blend were interacted with the sample nitrile rubbers. HEFA technology has been...
This paper considers the braking process of a mine diesel locomotive with hydrostatic mechanical transmission (HSMT) operating according to the “input differential” scheme. Braking process modeling involves four implementation methods. Identification and systematization of basic regularities in the distribution of power flows within a closed transmission contour in the process of...
Absorption of impact energy by the passive safety elements of the vehicle body is the basic feature to ensure conditions of safety for the driver and passengers in transport. The parts especially designed for this objective in the self-supporting car body are longitudinals. Their energy-absorbing features are designed in different ways. Evaluation of the degree to which the...
The importance of compliance with the schedule of work of road trains on the highway transport network of the European Union is shown. The possible options for work and rest modes for truck drivers on international routes have been analyzed. A model for optimizing the truck fleet operation plan has been developed. This model has two levels, that is, the general graph contains...
This article is a continuation of the authors’ study on the ways to ensure safety in the Air Traffic Management (ATM) system. It directly refers to the processes of risk management involving, in particular, risk management in (air) transport. The mai aim of this paper is to present and indicate the hazard identification and risk assessment tools that can be used in air transport...
This study presents a model of continuous oncoming traffic flows of vehicles along highways. The flow of atmospheric air and impurity particles is modeled numerically based on unsteady Reynolds-Averaged Navier–Stokes equations using the MTFS authoring software. Detailing of the flow patterns allows arbitrary length regions of periodicity, taking into account a crosswind. The...
The current state of the regional market of transport and logistics services in Kazakhstan is characterized by a disparity between the increasing demand for Logistics services and the lack of logistics capacity. In this article, the authors propose a method for determining the most promising areas of the Republic of Kazakhstan for the construction of a logistics center, based on...
This article describes three examples of bridge-type relieving constructions located on railway lines in the areas of active mining exploitation. It discusses how to take into account mining influences and how to support a temporary relieving construction on the railway embankment. This article discusses the incorrect solutions and their consequences. The first example involves...
This article presents the results of the analysis of waste collection in selected rural and urban municipalities in the Silesian Voivodship in Poland in the years 2014-2018. A new approach has been presented for the evaluation of the economic efficiency of the waste management system including all costs and revenues both for the local administration and the waste collection...
In contrast to traditional systems for monitoring fault of the running gear of the rolling stock, this paper proposes a technology of noise control at the onset of defects. The authors consider the possibility of creating an intelligent system that can perform noise diagnostics with the indication of the beginning of the latent period of the initiation of typical defects...
Intelligent information and analytical basis of a modern transport system is a prerequisite for efficient functioning of the digital economy. Modern transport systems are based on new intelligent technologies and new organizational principles, which is why the functions and competences of specialists in transportation are changing very rapidly. This paper substantiates the need...