Communications - Scientific Letters of the University of Zilina - Latest articles

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Proposal for the Electric Vehicle Drive Simulator Configuration - Case Study and Simulation ModellingElectrical Engineering in Transport

Ján Markovič, Pavol Špánik, Michal Frivaldský

Communications - Scientific Letters of the University of Zilina 2026, 28(1):C22-C34 | DOI: 10.26552/com.C.2026.014  

Road traffic remains a major contributor to carbon dioxide emissions, making innovative energy solutions essential. Electric vehicles (EVs) offer a promising alternative, however, current lithium-ion batteries face limitations in power output, energy density, and cost. To address these challenges, hybrid energy storage systems (HESS) combine batteries for energy storage with supercapacitors for rapid power delivery. In this study was explored an optimization tool for EV operation using HESS configurations and evaluates performance through MATLAB Simulink simulations across various driving cycles. The results highlight trade-offs between the performance,...

Cloud-Based Modular System for Acquisition and Visualization of OCO-2 Remotely Sensed Co₂ DataElectrical Engineering in Transport

Maroš Valášek, Roman Budjač, Martin Hanzely, Neven Vrček

Communications - Scientific Letters of the University of Zilina 2026, 28(1):C10-C21 | DOI: 10.26552/com.C.2026.013  

In this paper is presented a cloud-based framework for automated acquisition and visualization of Orbiting Carbon Observatory-2 (OCO-2) satellite CO₂ data. The system employs an ETL pipeline with OPeNDAP protocol for selective data retrieval, reducing network overhead while processing L2 Standard and L2 Lite FP products. Built on Amazon Web Services (AWS) infrastructure, using Python (Pandas, Dash, Plotly) and Docker orchestration, the modular architecture implements dependency injection for runtime flexibility. The deployed system achieves daily automated ingestion with 2.25 km × 1.29 km spatial resolution, enabling the real-time monitoring...

Enhancing the Transport Safety through Disdrometer-Based Environmental SensingElectrical Engineering in Transport

Matúš Nečas, Tomáš Ranuša, Dušan Maga, Gabriel Gašpar

Communications - Scientific Letters of the University of Zilina 2026, 28(1):C1-C9 | DOI: 10.26552/com.C.2026.012  

In this study is presented a system for real-time precipitation measurement integrating the laser disdrometer with adaptive control. The system manages large sensor data streams dynamically, enhancing robustness and accuracy under intense weather conditions. Meteorological inputs, combined with communication, enable scalable infrastructure supporting automated safety interventions. Experimental deployment showed improved data fidelity, anomaly detection, and detailed analysis of drop size and velocity distributions. The approach advances intelligent transportation safety and operational reliability through comprehensive environmental sensing and real-time...

Evaluating Port Performance in EU Countries with Fuzzy and Grey LogicOperation and Economics in Transport

Gül Alişar Kayar, İlker İbrahim Avşar

Communications - Scientific Letters of the University of Zilina 2026, 28(1):A1-A18 | DOI: 10.26552/com.C.2026.011  

Ports are fundamental components of global supply chains, and their performance is critical to sustaining international trade and economic activity. Recognizing that existing studies often focus on individual ports rather than broader regional patterns, a new hybrid Multi-Criteria Decision-Making (MCDM) model is proposed to provide a more comprehensive assessment framework. Based on expert judgments, the Fuzzy Analytic Hierarchy Process (AHP) results indicate that cargo type is the most influential determinant, followed by cargo direction and container volume. Using Evaluation based on Distance from Average Solution - Grey (EDAS-G) and Additive Ratio...

Research of the Stress-Strain State of a Mobile Overpass StructureMechanical Engineering in Transport

Alexandr Ganyukov, Sabit S. Amanbayev

Communications - Scientific Letters of the University of Zilina 2026, 28(1):B30-B42 | DOI: 10.26552/com.C.2026.010  

The research is aimed at solving the problem of traffic congestion during the underground repair work in cities. The goal is to develop and analyze a modular mobile overpass that ensures continuous traffic without bypassing repair areas. The stress-strain state of the spatial steel frame of the orthogonal overpass module was studied using analytical methods of structural mechanics - the displacement method and the force method. Critical forces are determined, relationships between bending moments and stiffness of elements are revealed, optimal parameters ensuring strength and stability of structure are determined. The results confirm the feasibility...

Theoretical and Experimental Study of Diesel Engine Exhaust Gas Purification in a Vertical Ultrasonic Muffler StandMechanical Engineering in Transport

Adil Kadyrov, Aliya Kukesheva, Yermek Dyussenbaev, Zhanara Zhunusbekova, Pavel Bezkorovainy

Communications - Scientific Letters of the University of Zilina 2026, 28(1):B18-B29 | DOI: 10.26552/com.C.2026.009  

In this article is presented a new method of ultrasonic cleaning of exhaust gases of diesel engines by coagulation of soot particles and their subsequent sedimentation. The analytical modelling of the particle motion in a vertical muffler stand was carried out, taking into account the ultrasonic effect and gravitational forces. Experimental studies of the developed stand confirmed that ultrasound promotes agglomeration and sedimentation of soot, reduces the CO₂ content and increases the O₂ concentration in the exhaust gases. The maximum cleaning efficiency is achieved with the simultaneous use of all the ultrasonic emitters. The results...

Optimizing Patient Transport under Infection Control Constraints: A Milp-Based Dial-a-Ride ApproachManagement Science and Informatics in Transport

Martin Tóth, Adrián Horváth, Tamás Hajba

Communications - Scientific Letters of the University of Zilina 2026, 28(1):E13-E20 | DOI: 10.26552/com.C.2026.008  

With aging populations and rising healthcare demands, efficient patient transportation has become a critical challenge, particularly in the context of infection control. In this paper is presented an extended mixed-integer linear programming (MILP) model for optimizing patient transport in urban environments, with a focus on the separate transportation of infectious and non-infectious individuals. The model incorporates time windows, maximum allowable ride durations, and mandatory vehicle disinfection requirements. Experimental results obtained using CPLEX demonstrate that incorporating infection control measures significantly influences both route...

Enhancing Visibility and Safety of Thermoplastic Road Markings with Phosphorus Additives and Rosin Ester BinderCivil Engineering in Transport

M. Isya, Cut Mutiawati, Fadhlullah Apriandy, Hadhrat Alfajri

Communications - Scientific Letters of the University of Zilina 2026, 28(1):D27-D38 | DOI: 10.26552/com.C.2026.007  

Road markings are essential traffic control devices that guide drivers, particularly at night and under adverse weather conditions common in tropical regions. In this study is investigated the performance of thermoplastic road markings enhanced with phosphorescent phosphorus using rosin ester as a binder. Laboratory experiments with varying phosphorus concentrations were conducted to evaluate luminance, retroreflectivity, and skid resistance under dry and wet conditions. The results show that a 30% phosphorus content provides the best overall performance by improving the nighttime visibility and retroreflective properties without compromising the skid...

Determining the Efficiency of Cleaning Vehicle Exhaust Gases with an Ultrasonic Muffler Depending on the Engine Operating Mode and Ultrasound PowerMechanical Engineering in Transport

Igor Pak

Communications - Scientific Letters of the University of Zilina 2026, 28(1):B9-B17 | DOI: 10.26552/com.C.2026.006  

The dependence has been obtained that links the degree of coagulation of soot particles, the parameters of the ultrasonic equipment, the geometric dimensions of the ultrasonic muffler, the frequency characteristics of ultrasound, and the parameters of the engine operating mode. In the paper is presented solving of a problem of determining the number of particles in 1 cm³ of exhaust gas depending on the smoke index. An example of calculating the required ultrasound power for a full-size ultrasonic vehicle muffler bench has been given.

Comparison of Braking Dynamics at High Speeds of Firefighting Vehicles on Tatra Chassis with Different Braking SystemsSafety and Security Engineering in Transport

Ladislav Jánošík, Ivana Jánošíková, Tomáš Konečný, Izabela Šudrychová

Communications - Scientific Letters of the University of Zilina 2026, 28(1):F1-F9 | DOI: 10.26552/com.C.2026.005  

In this paper are summarized the results of measurements of the driving characteristics of fire-fighting vehicles during the braking from high speeds. Two water tender vehicles manufactured by TATRA, used by the Fire Rescue Service of the Czech Republic, were compared. The tested vehicles differ in their braking systems. In the study are monitored the braking distance and deceleration, which were compared with previous tests focusing on tire type, test track surface, and weather conditions. When braking from a speed of 80 km/h, the worst results of the braking distance were recorded for SCANIA of 64 m and TATRA TerrNo1 (9T5 2243), of 73 m. These vehicles...

Influence of Traffic Flow Parameters on the Delay Duration at Signalized IntersectionsCivil Engineering in Transport

Taras Postranskyy, Mykola Boikiv, Maksym Afonin, Ihor Mohyla

Communications - Scientific Letters of the University of Zilina 2026, 28(1):D13-D26 | DOI: 10.26552/com.C.2026.004  

In this study is examined the influence of traffic flow parameters on delay duration at signalized intersections of urban multi-lane streets. The findings show that traffic composition strongly affects delays at low volumes, while its influence decreases as total volume grows. These results highlight the need to account for traffic composition, not only volume, when optimizing the signal timing and managing flows. The novelty of the study lies in modelling delay as a joint function of traffic volume and traffic flow composition, where the share of passenger cars is varied independently, rather than through the generalized passenger car unit-based growth,...

Evaluation of Bus Lane Implementation Expediency on Streets with Different Lane Numbers: Case StudyCivil Engineering in Transport

Fuad Dashdamirov, Turan Verdiyev

Communications - Scientific Letters of the University of Zilina 2026, 28(1):D1-D12 | DOI: 10.26552/com.C.2026.003  

The introduction of bus lanes on streets may not be feasible from the standpoint of reducing the overall time loss for road users. The goal of this study was to develop a method for checking the effectiveness of bus lane implementation. Using simulation experiments, conducted in PTV VISSIM, for a different number of traffic lanes, the speeds of buses and vehicles were determined both when buses are moving in the general flow and after the introduction of a bus lane, at different values of flow intensity and bus frequency. Regression equations, describing the dependence of speed on the traffic flow intensity and frequency of buses for different numbers...

An Analytical Model for Calculating the Active Interaction Forces of the Working Body of Earth-Moving Machines with Sticky SoilsMechanical Engineering in Transport

Nurbol Kamzanov, Shynbolat Tynybekov, Nursat Baikenzhe, Guldariya Naimanova, Bakytzhan Kyrgyzbay, Rustem Kozbagarov

Communications - Scientific Letters of the University of Zilina 2026, 28(1):B1-B8 | DOI: 10.26552/com.C.2026.002  

In this study is presented an analytical mathematical model developed to determine the forces arising during the active penetration of machine working bodies into sticky rocks. The methodology is based on the method of element-by-element calculation of resistances, where the contact zone is divided into discrete prisms of material. As a result of the analysis, a final formula for the total penetration force is derived. This formula shows the dependence of the resistance force on the dimensions of the tool (thickness, depth, angle of sharpening) and the physical characteristics of the rock (internal friction, adhesion, stickiness). The model serves...

Dynamic Routing with Static Delivery Time Windows in Urban Last-Mile Transport LogisticsManagement Science and Informatics in Transport

Viktor Danchuk, Oleksandr Hutarevych, Stanislav Popov, José Vicente Busquets-Mataix

Communications - Scientific Letters of the University of Zilina 2026, 28(1):E1-E12 | DOI: 10.26552/com.C.2026.001  

To address the challenges of dynamic routing in the last-mile transport logistics, an adaptive method has been developed for solving a multi-criteria dynamic vehicle routing problem with static time windows, taking into account the actual configuration of the urban road network and the non-stationary traffic dynamics on its sections. At the same time, the method enables the use of consolidated real-time data on the dynamic characteristics of traffic flow on sections of the transport network from any sources available at the time of optimization (e.g., GIS, road sensors, mobile devices, etc.). The results of simulation studies using the ant colony...

Modelling of Dynamic States of Five-Phase Induction MotorElectrical Engineering in Transport

Pavel Záskalický, Daniela Perduková, Ján Kaňuch

Communications - Scientific Letters of the University of Zilina 2025, 27(4):C70-C77 | DOI: 10.26552/com.C.2025.053  

In this paper is presented a mathematical model of a five-phase induction motor with a cage rotor and a stator coils connected to a star. In constructing the mathematical model, It is assumed that the motor is fed from a five-phase frequency converter with an ideal harmonic waveform of the output supply voltage. It is considered that the motor operates in an open control loop with the ability to control the frequency and amplitude of the supply voltage. The basic voltage equations in a two-phase coordinate system coupled to a stator are derived, as well as the relation for the electromagnetic moment. Based on the parameters measured on a real...

Carpooling in Transport in Today's ICT - Based EconomyOperation and Economics in Transport

Paulina Wiączek, Iryna Sitak, Alena Novak Sedlackova, Andrej Novak, Martin Bugaj

Communications - Scientific Letters of the University of Zilina 2025, 27(4):A48-A59 | DOI: 10.26552/com.C.2025.052  

The purpose of this research was, among other things, to show that the carpooling model can be regarded as a manifestation of collective intelligence and a response to the crisis of sustainability in today's ICT-based economy, which makes carpooling services a cheaper alternative to transportation services provided by other modes of transport: train and bus. The main research problem is contained in the question: How do collective intelligence and the tenets of sustainability influence the popularity of carpooling and the lower cost of carpooling services, compared to those provided by other forms of transportation? The critical literature analysis...

Detection of Selected Regulatory Traffic Signs Using Common Dashboard CameraElectrical Engineering in Transport

Dušan Koniar, Libor Hargaš, Matúš Danko

Communications - Scientific Letters of the University of Zilina 2025, 27(4):C61-C69 | DOI: 10.26552/com.C.2025.051  

Nowadays, many modern vehicles contain a lot of systems for autonomous functions or driver assistance systems (traffic sign recognition). Modern vehicles contain many embedded systems and control units (also for signal and image processing), so implementation of deep learning or AI-based algorithms is possible. In older vehicles, mentioned systems missing or they are limited. In this paper is presented a design of algorithm for detection of selected regulatory traffic signs to extend the selected autonomous or intelligent functions of older vehicles. Algorithm is based on shape and color detection of key features of selected regulatory traffic signs...

Geolocation of Devices in Low-Power Wide-Area LoRa NetworkManagement Science and Informatics in Transport

Ladislav Zemko, Daniel Hroš, Alexander Valach, Marek Galinski, Pavel Čičák

Communications - Scientific Letters of the University of Zilina 2025, 27(4):E46-E62 | DOI: 10.26552/com.C.2025.050  

This article is focused on the geolocation possibilities in low-power deployments. A novel Logarithmic Distance Path Loss Model with a Memory (LDPL-M) algorithm is proposed to enhance the accuracy of determining the location of end devices. The proposed solution, utilizing the RSSI-based trilateration, proved more accurate by 24.54% compared to the conventional Logarithmic Distance Path Loss Model (LDPL). Compared to the Global Positioning System (GPS), the power consumption was 48.8% lower. These findings make it suitable for energy-harvesting deployments, environments with limited power supply, or generally hard-to-reach areas, covering various...

Algorithm for Making the Optimal Decision for Further Operation of Freight CarsMechanical Engineering in Transport

Adil Kadyrov, Perizat Baigozhina, Aliya Kukesheva, Imanov Marat, Akbope Karsakova

Communications - Scientific Letters of the University of Zilina 2025, 27(4):B261-B277 | DOI: 10.26552/com.C.2025.049  

The article deals with the methodology of selecting the optimal decision for the maintenance and operation of freight cars. The statistics of failures for the main units of freight cars has been collected. A hypothesis has been proposed about the method of selecting a decision based on the optimality criterion, i.e. the maximum profit. The optimality criterion is the difference between the income and the costs and is the function of the frequency of certain operations on each of the car units. An algorithm has been developed that allows for the effective optimization of the processes of operating, repairing, and writing-off the cars, ensuring an...

Methodology for Assessing the Key Operational Efficiency Indicators for Removal and Shunting Operations of Shunting LocomotivesMechanical Engineering in Transport

Gabit Bakyt, Aizhan Makhanova, Murat Mussabekov, Galymzhan Ashirbayev, Malik Zhamankulov, Kuantkhan Sarsenov, Aisha Mussabekova

Communications - Scientific Letters of the University of Zilina 2025, 27(4):B250-B260 | DOI: 10.26552/com.C.2025.048  

The problem dealt with in this article is the methodology of the key performance indicators (KPI) evaluation of shunting locomotives operation when performing hauling and shunting work. The main parameters affecting the efficiency of rolling stock operation are described, including performance, fuel efficiency and locomotive utilization rate. The algorithm of KPI calculation is proposed, based on the analysis of operational data and statistical methods is proposed. According to the analysis of the trend in cargo transportation over the past 3 years, the need to develop a methodology for evaluating the key performance indicators of shunting work is...

Evaluation of Silicone Carbide Mosfet Driving Circuit PerformanceElectrical Engineering in Transport

Veronika Švárna, Michal Frivaldský

Communications - Scientific Letters of the University of Zilina 2025, 27(4):C53-C60 | DOI: 10.26552/com.C.2025.047  

The performances of different driving circuits configurations designed for silicon carbide MOSFET transistors are compared in this research. The simulation of the double-pulse test (DPT) was performed with the use of three driving circuit configurations. The SiC MOSFET NTH4L022N120M3S has great dynamic parameters, which made it suitable for the DPT simulation. It was performed with six different driving voltage ranges, all within the range between -10 V and 20 V. The results were taken across the wide range of driving resistances placed between the driver and the SiC MOSFET, where the switching losses were taken. Drawing from the observed measurements...

Modelling the Equivalency Factor of E-Rickshaw under Heterogeneous Traffic ConditionsCivil Engineering in Transport

Amir Ali Khan, Sachin Dass

Communications - Scientific Letters of the University of Zilina 2025, 27(4):D102-D115 | DOI: 10.26552/com.C.2025.046  

E-rickshaws, as emerging transport modes, notably affect mixed traffic flow on urban roadways. To evaluate their influence relative to other vehicle types, this study aim was to determine the Passenger Car Unit (PCU) value for e-rickshaws, as the Indian Roads Congress has yet to assign one. Three analytical methods were used: Chandra’s method, the homogeneous coefficient method, and multiple linear regression. Data were gathered via three-hour video recordings at three different locations, each in Hapur and Sonipat. Using VLC media player, vehicle speeds and counts were extracted for analysis. The data were then processed in SPSS and Excel to...

The Research of the Engine-Reducer Assembly in the Traction Transmi̇Ssi̇on SystemMechanical Engineering in Transport

Ayaz Abdullaev, Ilham Huseynov, Israil Elyazov, Elchin Yusifzade, Ramin Abdullaev, Allahverdi Sharifov

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B237-B249 | DOI: 10.26552/com.C.2025.045  

During the movement of the train in various operational regimes, a series of deficiencies arise in the mechanical components, which depend on kinematic and parametric factors affecting the working conditions of the traction drive. An innovative traction drive is discussed in this article, which prevents the non-uniform distribution of parametric factors, as well as dissipative, inertial, and elastic characteristics along the length of the track.

Evacuation Transport Provision Design Using Network Analysis with Gis SupportSafety and Security Engineering in Transport

Jozef Kubás, Jozef Ristvej, Boris Kollár, Katarína Petrlová, Alexandra Trličíková, Kateřina Blažková

Communications - Scientific Letters of the University of Zilina 2025, 27(3):F13-F27 | DOI: 10.26552/com.C.2025.044  

The research presented in paper has focused on design of the transportation evacuation during a special flood caused by an accident at a water structure using GIS-enabled network analysis. Freely available population and address point data were used to calculate the number of residents at risk. Three scenarios of time required for each evacuation activity were determined using the PERT method, and the time required for evacuation was determined using a Gantt chart. The approach proposed in the paper is suitable for obtaining relatively quick results that can be taken into account when preparing for crisis events. The results of the case study proved...

Economic Determinants of Gasoline Prices: A Cointegration Analysis for CzechiaOperation and Economics in Transport

Jiří Alina, Jiří Nožička

Communications - Scientific Letters of the University of Zilina 2025, 27(3):A40-A47 | DOI: 10.26552/com.C.2025.043  

The long-term relationships between the N95 ("Natural 95") gasoline prices and economic factors, such as Brent crude oil prices, diesel fuel prices, and the CZK/USD exchange rate from 2014 to 2024, was investigated within this research. The Engle-Granger cointegration test was used to identify any stable long-term connections between these variables. Despite the comprehensive tests, facilitated by the Matlab software, no evidence of cointegration was consistently found, indicating that these economic factors do not significantly influence N95 gasoline prices over the long term. The findings suggest that, while the short-term fluctuations in these economic...

Determination of the Optimum Combination of Parameters of Specialized Blades for the Shantui SD 32 Bulldozer When Moving Low-Density MaterialsMechanical Engineering in Transport

Tavbay Khankelov, Maloxat Abdukadirova, Otabek Ochildiev, Zebo Alimova, Gulxayo Niyazova, Anvar Kadirov

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B225-B236 | DOI: 10.26552/com.C.2025.042  

Recommendations are given on combinations of parameters of box-shaped and "dump" types of dumps for the SHANTUI SD 32 bulldozer, which provide the highest technical characteristics of the bulldozer when moving low-density materials. The optimal dimensions of a box blade for equipping the SHANTUI SD32 bulldozer are a grasp width of up to 3730 mm, radius of curvature of up to 1700 mm, width of the cutting edge of up to 460 mm, canopy width of up to 140 mm, flap length of up to 860 mm. The optimal dimensions of a "landfill" blade for equipping the SHANTUI SD32 bulldozer are a grasp width of up to 3900 mm, radius of curvature of up to 460 mm, width of...

Influence of the Cutting Angle on the Resistance of Bulldozer Working Equipment Blade Burial When the Machine Is MovingMechanical Engineering in Transport

Nursat Baikenzhe, Shynbolat Tynybekov, Bakytzhan Kyrgyzbay, Kazyna Ashim, Nurbol Kamzanov, Rustem Kozbagarov

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B216-B224 | DOI: 10.26552/com.C.2025.041  

The influence of the cutting angle on the resistance to the bulldozer blade burial during its movement, taking into account the one-sided stressed state of the soil, was studied in the research results of which are presented in this paper. It is established that the resistance to deepening is significantly reduced when the machine is moving, which allows using smaller cutting angles without increasing the energy consumption. Constructive features and kinematics of the working equipment are considered, including a promising parallelogram scheme, which provides automatic reduction of the cutting angle during deepening. Calculations of the resistance...

Predicting Residual Life of Toro-40D Units Using the Oil Spectral Analysis MethodMechanical Engineering in Transport

Bakytzhan Kyrgyzbay, Mergen Zhumanov, Yerbol Kaliyev, Nurbol Kamzanov, Nursat Baikenzhe, Rustem Kozbagarov

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B208-B215 | DOI: 10.26552/com.C.2025.040  

At the underground mines of Kazakhmys Corporation, where different types of highly productive self-propelled equipment with different types of pneumatic wheel drive are operated, there are significant downtime of technological equipment. As practice has shown, application of repair system with use of old methods and means, at operation of underground self-propelled equipment appeared to be ineffective. One of the main reasons of low efficiency of self-propelled machines operation is the absence of the system of continuous monitoring of technical condition of each machine and its aggregates with application of methods and means of diagnostics. To avoid...

Influence of Laser Ablation Treatment on Electrochemical Characteristics of AZ80 Magnesium AlloyMechanical Engineering in Transport

Daniel Kajánek, Luboš Halimovič, Martina Jacková, Leoš Doskočil, Ingrid Zuziaková, Branislav Hadzima

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B198-B207 | DOI: 10.26552/com.C.2025.039  

In this study was investigated the effect of a novel surface treatment technique, called laser ablation or laser surface cleaning (LSC), on the electrochemical properties of AZ80 magnesium alloys. Its effect on corrosion resistance was compared to conventional techniques represented by grinding and polishing. The corrosion stability of the produced surfaces was determined by potentiodynamic (PD) polarization tests and electrochemical impedance spectroscopy in 0.1M NaCl. The results showed that the LSC process produced a regular, uniform surface morphology. Although the LSC treatment led to the passivation of the AZ80 surface, the overall corrosion...

Statistical Research on Braking Malfunctions of Passenger Rolling Stock in OperationMechanical Engineering in Transport

Juraj Gerlici, Alyona Lovska, Vasyl Ravlyuk, Yaroslav Derevianchuk, Oleksandr Derevyanchuk

Communications - Scientific Letters of the University of Zilina 2025, 27(3):B186-B197 | DOI: 10.26552/com.C.2025.038  

In this article are highlighted the results of the research on braking malfunctions of passenger rolling stock identified during the car maintenance. Based on the collected statistical material, the key factors that cause braking malfunctions in operation are highlighted. The main brake equipment units that account for the largest number of malfunctions in operation are determined. The data on the malfunctions of air distributors used in passenger rolling stock was systematized using the STATISTIKA software package. To ensure continuous monitoring and timely detection of defects in the brake system of passenger trains, it is critical to use modern...