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Article | 31-December-2020

OVERVIEW OF SAFETY AT RAIL-ROAD CROSSINGS IN POLAND IN 2008-2018

The intersection of a public road with a railway line in one level, called a rail-road crossing, is a particularly dangerous place due to the traffic flows crossing it. The regulations give absolute priority to a rail vehicle over a public road user; in addition, significant differences in the masses and speeds of moving vehicles require traffic regulation consisting of adequate passage protection. To this end, the road on which motor vehicles is equipped with road signs informing drivers that

Elżbieta MACIOSZEK, Agata KUREK, Bartłomiej KOWALSKI

Transport Problems, Volume 15 , ISSUE 4, Part 1, 57–68

Research Article | 27-February-2017

APPLICATION OF NFC TECHNOLOGY IN PASSENGER RAIL TRANSPORT

Summary. The article discusses the possibility of the application of the NFC technology as a system of selling tickets in passenger rail transport. The NFC (Near Field Communication) technology is a wireless and contactless technology of transmission of radio data over short distances (max. 5 cm). This technology is very similar to the RFID (Radio Frequency Identification) technology. It is assumed that this technology will spread rapidly and that already in 2015 around 85% of the payments in

Henryk KOMSTA, Eva BRUMERCIKOVA, Bibiana BUKOVA

Transport Problems, Volume 11 , ISSUE 3, 43–53

Research Article | 24-October-2017

INVESTIGATION INTO THE BIMODAL TRANSPORTATION PROCESS BY MODELLING RAIL MODULE STATES

The bimodal transportation process, which takes into account the modelling of rail module states, has been studied. The article demonstrates marked graphs of rail module states with and without running gear change in operation. It has been established which states have the greatest impact on the probability of a steady mode. The work has considered fractality of arrivals and its range in the queueing system with priorities.

Оleksander LAVRUKHIN, Victor ZAPARA, Yaroslav ZAPARA, Olga SHAPATINA, Ganna BOGOMAZOVA

Transport Problems, Volume 12 , ISSUE 2, 99–111

Research Article | 27-February-2017

AN ANALYSIS OF SPATIAL EQUITY CONCERNING INVESTMENTS IN HIGH-SPEED RAIL SYSTEMS: THE CASE STUDY OF ITALY

Summary. It is recognised in the literature that spatial accessibility is a measure of spatial equity and can be represented by the ease of travelling from an origin to a given destination via a given mode or set of transport modes. Although urban areas can benefit from improvements in accessibility when a new high-speed rail line is built, equity issues may arise.This manuscript describes a methodology for evaluating equity impacts due to an extension of the High Speed Rail network in Italy. A

Francesca PAGLIARA, Luigi BIGGIERO, Alessia PATRONE, Francesco PERUGGINI

Transport Problems, Volume 11 , ISSUE 3, 55–68

Article | 03-March-2018

THE EFFICIENCY OF TRANSPORTATING PERISHABLE GOODS BY ROAD AND RAIL

This research analyses the competitive advantages of road and rail transport through the example of Ukraine transportation market. Spheres of efficient usage of rail and road transport while transporting perishable goods have been studied. The key factors influencing the mode choice, as well as the kinds of cargo that depend on the mode choice have been determined with the help of revealed preference data. A mathematical model of mode choice has been offered. The criterion of the effectiveness

Mariia OLKHOVA, Yurii DAVIDICH, Dmytro ROSLAVTSEV, Nataliia DAVIDICH

Transport Problems, Volume 12 , ISSUE 4, 37–50

Research Article | 21-April-2017

MODELLING CHALLENGES TO FORECAST URBAN GOODS DEMAND FOR RAIL

This paper explores the new research challenges for forecasting urban goods demand by rail. In fact, the growing interest to find urban logistics solutions for improving city sustainability and liveability, mainly due to the reduction of urban road accessibility and environmental constraints, has pushed to explore solutions alternative to the road. Multimodal urban logistics, based on the use of railway, seem an interesting alternative solution, but it remained mainly at conceptual level. Few

Antonio COMI, Agostino NUZZOLO

Transport Problems, Volume 10 , ISSUE 4, 75–91

Research Article | 21-April-2017

Railway noise reduction by the application of CHFC material on the rail

Traffic is the most widespread source of environmental noise. Railway noise has become increasingly common in urban areas in the past few decades. Therefore environmental requirements for railway operations regarding noise are becoming very strict and will become even tighter in future. In the present paper we present actual track-based field test performed on Slovenian Railways. The significant noise reduction (up to 30dBA) was achieved by the application of CHFC material on the rail using CL

Brigita ALTENBAHER, Darja GOLTNIK, Bojan ROSI

Transport Problems, Volume 10 , ISSUE 2, 5–14

Article | 03-March-2018

A STUDY ON COOPERATION OF URBAN TRANSPORT MEANS: PRT AND LIGHT RAIL

It is difficult to organize urban transport in the city center. Existing buildings, narrow streets and working infrastructure make it difficult to use the oldfashion transport means such as trams or buses. The new idea consists in elevation of the transport in the very city above ground level (typical PRT systems cover rare areas like airport or fairgrounds). The study analyzes the hierarchical, layered system consisting of a ring light rail and PRT (Personal Rapid Transit) serving as commuter

Waldemar GRABSKI, Wiktor B. DASZCZUK

Transport Problems, Volume 12 , ISSUE 4, 5–14

Research Article | 02-February-2017

Complex Evaluation of Electric Rail Transport Implementation in Vilnius City

The article analyses the current problems of Vilnius city public transportation. The possible solutions (options) and the technical means to improve the attractiveness of public transportation and accessibility are considered. Two main alternatives of means of electric transport (underground and tram) have been singled out for Vilnius city. The suitability of these rail transport means have been substantiated. The nature and density of the work and residence places (areas) of Vilnius city

Gintautas BUREIKA, Stasys STEIŠŪNAS

Transport Problems, Volume 11 , ISSUE 1, 49–60

Article | 04-March-2018

SELF-DIAGNOSIS METHOD FOR CHECKING THE WAYSIDE SYSTEMS FOR WHEEL-RAIL VERTICAL LOAD MEASUREMENT

Nowadays, wayside measurement systems of wheel-rail contact forces have acquired great relevance for the monitoring of rolling stock, especially for freight trains. Thanks to these solutions, infrastructure managers can check and monitor the status of rolling stock and, when necessary, impose corrective actions for the railway companies. On the other hand, the evaluation of contact forces is part of the rolling stock authorisation process [1] and a mainstone for the study of the running

Daniele CORTIS, Stefano GIULIANELLI, Gabriele MALAVASI, Stefano ROSSI

Transport Problems, Volume 12 , ISSUE 4, 91–100

Article | 04-November-2019

EFFECTS OF RAIL-WHEEL PARAMETERS ON VERTICAL VIBRATIONS OF VEHICLES USING A VEHICLE–TRACK-COUPLED MODEL

This paper presents an insight into mathematical analysis of dynamic models of the vehicle–track system. After identification of its advantages and disadvantages, an improved three-dimensional "vehicle–track" system of a mathematical model is presented. It not only assesses the influence of realistic track irregularities but also on all elements of the railway structure: rail, rail pads, sleepers, ballasts, and subballast parameters on the wagon’s movement smoothness

Stasys STEIŠŪNAS, Gintautas BUREIKA, Mykola GORBUNOV

Transport Problems, Volume 14 , ISSUE 3, 27–40

Article | 03-October-2018

THE CASE STUDY OF THE CARGOBEAMER SYSTEM USE IN RAIL TRANSPORT IN SLOVAKIA

The railway transport of goods was in past the most used type of transport. After the collapse of the Soviet Union, the performance of this mode of transport was reduced. At present, international trade is expanding in the direction of Asia–Europe. For economic and, above all, ecological reasons, it is appropriate to move the transport operations back to rail transport. The article focuses on progressive systems of railway transport of freight in the East–West direction, namely the use of the

Henryk KOMSTA, Iwona RYBICKA, Bibiana BUKOVA, Eva BRUMERCIKOVA

Transport Problems, Volume 13 , ISSUE 3, 144–149

Research Article | 21-April-2017

The wheel-rail contact friction influence on high speed vehicle model stability

Right estimating of the coefficient of friction between the wheel and rail is essential in modelling rail vehicle dynamics. Constant value of coefficient of friction is the typical assumption in theoretical studies. But it is obvious that in real circumstances a few factors may have significant influence on the rails surface condition and this way on the coefficient of friction value. For example the weather condition, the railway location etc. Influence of the coefficient of friction changes

Mirosław DUSZA

Transport Problems, Volume 10 , ISSUE 3, 73–86

Article | 25-November-2017

ANALYSIS OF DYNAMICS OF AMETRO VEHICLEMODEL WITH DIFFERENTIALWHEELSETS

Summary. The operating conditions of light rail vehicles (trams, metro vehicles) are predominantly different compared with those of passenger or freight trains. The increased number of low-radii curves has a negative effect on wheel–rail interaction. The general design of light rail vehicle running gear is inherited from passenger trains and adapted to different loads. However, conventional solutions of a running gear may not provide smooth low-radius curve negotiation in all

Rafał MELNIK, Bogdan SOWIŃSKI

Transport Problems, Volume 12 , ISSUE 3, 113–124

Research Article | 27-December-2017

Investigation of Main Injection Quantity Fluctuation due to Pilot Injection in High Pressure Common Rail Fuel Injection System

High pressure common rail (HPCR) fuel injection system is the main development trend for fuel injection system of diesel engine. Precise controlling of injection pressure and multiple injections are the advantages and key features of the HPCR system. Affect of pilot injection quantity (PIQ) and pilot-main interval (PMI) on main injection quantity fluctuation (MIQF) has been investigated in this paper by evaluating performance coherence and stability of injection quantity of diesel engine. A

Tian Bingqi, Fan Liyun, Ma Xiuzhen, Qaisar Hayat, Bai Yun, Liu Yang

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 2, 820–836

Article | 01-September-2015

DYNAMIC PERFORMANCE INFLUENCES ON HOPF BIFURCATION CHARACTERISTICS FOR VEHICLES

This study compares the performance influences for four kinds of tread contour features commonly used in High-Speed trains. The Hopf bifurcation characteristic influencing the dynamic performance for VEHICLE 1 and VEHICLE 2 were analyzed using mathematical matrices models. SIMPACK software was used to create two dynamic models for VEHICLE 1 and VEHICLE 2 for high speed trains equipped with four kinds of treads matched with Chinese 60 rail. Dynamic performance indices for these models were

Haiyan Zhu, Pingbo Wu, Jing Zeng, Guoyao Mai

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 3, 1786–1805

Article | 26-March-2020

NEW IDEAS FOR INLAND INTERMODAL TRANSPORT

This article focuses on the competitive disadvantages of existing intermodal rail-road transport compared with road transport. The authors state that the domestic and continental combined freight transport system can be competitive in terms of both time and price with road freight transport. The new container transshipment device contributes to a new terminal structure on the freight rail-road transport market, considering environment protection requirements, and the concept has helped the

Béla ILLÉS, Antal VÉHA, Laszlo VIDA

Transport Problems, Volume 15 , ISSUE 1, 117–130

Article | 23-March-2018

ASSESSMENT OF RAILWAY LINES: AN EFFICIENCY RATING ANALYSIS FOR BALTIC COUNTRIES

The article investigates a possibility of using the traditional multi-criteria assessment methods to evaluate how significance of a railway line is distributed for the countries it crosses. The article analyses two examples of railway lines: the railway line Rail Baltica (Poland, Lithuania, Latvia and Estonia) and the container train Viking route (Lithuania, Belarus and Ukraine). When investigating for which countries the Rail Baltica project will have bigger significance, and for which smaller

Gediminas VAIČIŪNAS

Transport Problems, Volume 13 , ISSUE 1, 49–58

research-article | 23-April-2019

ELECTROMAGNETIC SYSTEM FOR IMPROVING THE ADHESION OF WHEELS TO RAILS

of wheels and damage to the wheels and rails [5]. The presence of a third body between wheel and rail significantly affects the adhesion. Poor adhesion of the wheels to rails can cause various problems, such as high-frequency noise [6], fatigue of the contact surface [7], increased corrugation of rails [8], energy dissipation [9], unstable adhesion before acceleration [10], and poor braking performance [11]. Traditionally, sand is used to increase the coefficient of adhesion of locomotive wheels

Yuriy OSENIN, Lidiya ANTOSHKINA, Igor SOSNOV, Evgeniy SHAPRAN, Aleksei CHESNOKOV

Transport Problems, Volume 14 , ISSUE 1, 59–67

Research Article | 14-February-2019

THE DISTRIBUTION OF MARSHALLING WORK OF INDUSTRIAL AND MAINLINE RAIL TRANSPORT

The article discusses the issue of effective distribution of work on formation of train network between the stations of industrial and mainline rail transport. The analysis is worked out of difficulties in the interaction of technological systems of railway transport of common and uncommon use and risks of the transport stream delays. The strategy for sorting of wagons and a complex of interconnected mathematical models is developed. The proposed solution method is based on step-by-step

Andrey BORODIN, Vitaly PANIN

Transport Problems, Volume 13 , ISSUE 4, 37–46

Research Article | 27-February-2017

IMPROVEMENT OF WORKING CONDITIONS OF THE FREIGHT LOCOMOTIVE RUNNING GEAR

Summary. To improve the working conditions of the electric locomotive running part, it is necessary to decrease unsprung masses, lateral loads and the angle of attack and provide the third body with proper tribotechnical properties. A new scheme of the freight electric locomotive running gear is elaborated in the work, which ensures a decrease of unsprung masses, relative sliding of a wheel on the rail and an angle of attack that provides resistance to the destruction of the third body in the

George TUMANISHVILI, Tamaz NATRIASHVILI, Givi GOLETIANI, Victor ZVIADAURI, Tengiz NADIRADZE

Transport Problems, Volume 11 , ISSUE 3, 103–109

Research Article | 01-September-2017

MACHINE VISION BASED MISSING FASTENER DETECTION IN RAIL TRACK IMAGES USING SVM CLASSIFIER

technique. Grey Level Cooccurence Matrix (GLCM) features, Local Binary Pattern (LBP) features and Discrete Wavelet Transform (DWT) are used as features in this paper. SVM classifier is used as classifier in order to classify the test rail track image into either track image with fastener or track image without fastener.

R. Manikandan, M. Balasubramanian, S. Palanivel

International Journal on Smart Sensing and Intelligent Systems, Volume 10 , ISSUE 5, 574–589

Article | 04-November-2019

RESEARCH ON RELATIONSHIP BETWEEN FREIGHT TRANSPORT AND TRANSPORT INFRASTRUCTURE IN SELECTED EUROPEAN COUNTRIES

The article deals with research on the relationship between the performance of road and rail freight transport and transport infrastructure in EU countries. The authors of the article examined the relationship between transport performance and transport infrastructure by correlation and regression analyses. Verification of the statistical significance of the regression model was also performed. The main objective of the contribution is to find out what are the relationships and influences

Jozef GNAP, Pavol VARJAN, Pavol ĎURANA, Mariusz KOSTRZEWSKI

Transport Problems, Volume 14 , ISSUE 3, 63–74

Research Article | 21-April-2017

SIMULATION MODELLING OF VITÓRIA-MINAS CLOSED-LOOP RAIL NETWORK

the validation scenario (Scenario 1) and 3.4% for the scenario with reducing the number of lots of wagons (Scenario 2). We concluded with this simulation that it is possible to reduce the number of GDE wagons without reducing the current level of productivity of the rail system.

Carlos Henrique Fernandes de FARIA, Marta Monteiro da Costa CRUZ

Transport Problems, Volume 10 , ISSUE SE, 125–139

Article | 31-December-2020

IMPROVING SEAPORT COMPETITIVENESS BY CREATING A CONNECTION TO THE NATIONAL RAIL NETWORK

completed so far, it was shown that connecting a seaport with the national rail network may be a significant factor affecting the port’s competitiveness in relation to the ports located in the direct vicinity.

Oliwia PIETRZAK, Krystian PIETRZAK, Natalia WAGNER, Andrzej MONTWIŁŁ

Transport Problems, Volume 15 , ISSUE 4, Part 1, 149–161

Research Article | 23-October-2017

USING A WHEEL PAIR WITH A COUNTER-FLANGE TO PREVENT DERAILMENT

The authors propose an engineering solution for a wheel pair with a counter-flange that satisfies the existing standards of vertical and horizontal dynamics and the movement stability index. An improved profile of a rail wheel with a counter-flange is developed. It provides additional contact in the horizontal plane in the situation of transverse vibrations of the wheel pair against the rail track, adds to carriage stability and increases the wheel’s resistance to derailment when passing a

Yuriy Iv. OSENIN, Larysa DEGTYAREVA, Galyna OSENINA, Oksana SERGIENKO

Transport Problems, Volume 12 , ISSUE 2, 13–18

Article | 15-March-2021

ASSESSMENT OF THE INFLUENCE OF PREVENTIVE MAINTENANCE ON THE RELIABILITY AND AVAILABILITY INDEXES OF DIESEL LOCOMOTIVES

the rail vehicle that affect the downtime and mean availability most significantly. Specialized software including Weibull++, BlockSim, and MiniTab aided calculations were used to illustrate the application of the results of a modernization project involving a 6Dg diesel locomotive, carried out in cooperation with the biggest Polish rail carrier. The applicability of the proposed tools has been verified on the example of a selected sample of 75 diesel locomotives employing data on their use and

Maciej SZKODA, Grzegorz KACZOR, Robert PILCH, Maksymilian SMOLNIK, Zbigniew KONIECZEK

Transport Problems, Volume 16 , ISSUE 1, 5–18

Research Article | 30-March-2017

CHARGING RAILWAY INFRASTRUCTURE MODELS AND THEIR IMPACT TO COMPETITIVENESS OF RAILWAY TRANSPORT

transport market. The research was based on a comparative analysis of models of charging railway infrastructure, subsidies to rail infrastructure, and development of transport performances of all rail operators. The results of research are presented in terms of freight and passenger railway transport.

Anna DOLINAYOVA, Juraj CAMAJ, Juraj KANIS

Transport Problems, Volume 12 , ISSUE 1, 139–150

Research Article | 21-April-2017

RAILWAY INDUSTRY ROADMAP IN THE STATE OF SANTA CATARINA, BRAZIL

Acires DIAS, Jonny C. DA SILVA, Heitor H. KAGUEIAMA, Carolina R. HADDAD, Mauricio URIONA M., Álvaro G.R. LEZANA, Dante L. JULIATTO

Transport Problems, Volume 10 , ISSUE SE, 29–36

Research Article | 21-April-2017

BIODEGRADABLE LUBRICANT FOR RAILWAY TRANSPORT

Boron-containing lubricant for rail-curve lubrication is developed. Its effectiveness was proved by series of experiments carried out on different types of friction machines. The mechanism of antiscoring effect of boron-containing additives was analyzed in terms of physical adsorption.

Mikhail BOIKO, Konstantin LEBEDINSKY

Transport Problems, Volume 10 , ISSUE 4, 99–105

Article | 01-December-2016

A DOOR MONITORING SYSTEM FOR SUBWAY CARS BASED ON WIRELESS SENSOR NETWORK

The place and performance of wireless sensor networks are rapidly improving in the automotive industry, industrial and environmental monitoring. Uptake of this technology can be used in urban rail vehicle management system. Due to the difficult and time-consuming maintenance of vehicle management, a remote automatic monitoring system is needed. In this paper, it is proposed to design, develop and implement a remote automatic vehicle monitoring system. The complete system architecture includes a

WU Minghu, CHEN Rui, YANG Jie, JIAO Liangbao

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 4, 1822–1839

Research Article | 27-February-2017

Health initiatives to target obesity in surface transport industries: Review and implications for action

Lifestyle-related chronic diseases pose a considerable burden to the individual and the wider society, with correspondingly negative effects on industry. Obesity is a particular problem for the Australasian road and rail industries where it is associated with specific cardiac and fatigue-related safety risks, and levels are higher than those found in the general population. Despite this recognition, and the introduction of National Standards, very little consensus exists regarding approaches to

Janine Chapman, Anjum Naweed

Evidence Base, Volume 2015 , ISSUE 2, 1–20

Research Article | 15-February-2020

Laser Profilometry Aiding Smart Vehicle Control

of direction. The processing of the acquired images is directly done on board by means of a low-cost single-board computer, namely the Raspberry Pi. This last is able to extract the information about the distance and the heading of the robot with respect to the rail boundary by analyzing the laser line lying in the camera plane; then, the extracted information expressed in the 3D reference system are sent via User Datagram Protocol to the control system of the vehicle. Results show how the

Cosimo Patruno, Roberto Marani, Massimiliano Nitti, Tiziana D’Orazio, Ettore Stella

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–6

Article | 08-December-2019

PARALLEL COMPUTATIONS AND CO-SIMULATION IN UNIVERSAL MECHANISM SOFTWARE. PART II: EXAMPLES

The second part of the paper continues a discussion on the topic of parallel computations in railway dynamics. The algorithms described in the first part of the paper are applied to parallel simulation on computers with multicore processors of six different models of rail vehicles and trains with the number of degrees of freedom from about one hundred to more than 20 thousands. A considerable simulation speedup is reported. In addition, an example of evaluation of wheel profile wear on

Dmitry POGORELOV, Alexander RODIKOV, Roman KOVALEV

Transport Problems, Volume 14 , ISSUE 4, 31–38

Article | 04-November-2019

A MODEL OF TRANSIT FREIGHT DISTRIBUTION ON A RAILWAY  NETWORK

The peculiarity of the transit freight transportation by rail in international traffic is the fact that while performing transportation, the railway administrations are in competition among themselves. At the same time, the routes of cargo traffic volumes significantly depend on the conditions of transportation by railways of individual states. The mathematical model for the distribution of transit freight traffic volumes on the railway network, based on the methods of graph theory and game

Dmytro KOZACHENKO, Vladyslav SKALOZUB, Bogdan GERA, Yuliia HERMANIUK, Ruslana KOROBIOVA, Aleksandra GORBOVA

Transport Problems, Volume 14 , ISSUE 3, 17–26

Article | 04-November-2019

PARALLEL COMPUTATIONS AND CO-SIMULATION IN UNIVERSAL MECHANISM SOFTWARE. PART I: ALGORITHMS AND IMPLEMENTATION

Parallel computations speed up simulation of multibody system dynamics, in particular, dynamics of railway vehicles and trains. It is important for reduction of required time at the stage of new railway vehicle design, for increase of complexity of studied problems and for real-time applications. We consider realization of parallel computations in Universal Mechanism software in three different areas: simulation of rail vehicle and train dynamics, evaluation of wheel profile wear and multi

Dmitry POGORELOV, Alexander RODIKOV, Roman KOVALEV

Transport Problems, Volume 14 , ISSUE 3, 163–175

Research Article | 30-March-2017

MATHEMATICAL MODEL OF OSCILLATIONS OF BEARING BODY FRAME OF EMERGENCY AND REPAIR RAILCARS

frame of emergency and repair rail service car, taking into account the variability in section, mass, longitudinal stiffness, and bending stiffness. It allows for extension of the useful life of their operation, with special focus on vehicles owned by Joint-Stock Company

Galina KHROMOVA, Ziyoda MUKHAMEDOVA, Irina YUTKINA

Transport Problems, Volume 12 , ISSUE 1, 93–102

Research Article | 21-April-2017

Investigation on features and tendencies of axle-box heating

Breakdown of rolling stock axle-boxes if not detected in due time may cause a rail accident or disaster. At present, a lot of advanced technologies, modern equipment and devices, which “recognizes” faulty axle-boxes when the train is in motion, have been implemented. However, the timely identification of breakdown of rolling stock axle-boxes still is an acute problem, the initial stage of damage emergence being especially problematic. Presently, rolling stock axle-box breakdown is determined

Olegas LUNYS, Stasys DAILYDKA, Gintautas BUREIKA

Transport Problems, Volume 10 , ISSUE 1, 105–114

Research Article | 02-February-2017

EVALUATION OF POTENTIAL OF REGIONAL RAILWAY LINES

Summary. There is a significant number of railway networks within many Middle- and East-European countries operated only by regional lines, usually with a great difference between travel demand and transportation offer. This difference is reflected in the whole economic balance of the lines of the service there, resulting as an essential input for the assessment of rail system efficiency. This paper is the conclusion of the Czech Technical University in Prague (CTU), Faculty of Transportation

Tomáš JAVOŘÍK, Václav NOVOTNÝ, Lukáš TÝFA, Martin VANĚK

Transport Problems, Volume 11 , ISSUE 4, 111–126

Article | 15-March-2021

EMISSIONS FROM A MEDIUM-DUTY CRDI ENGINE FUELLED WITH DIESEL–BIODIESEL BLENDS

Kamil DUDA, Sławomir WIERZBICKI, Maciej MIKULSKI, Łukasz KONIECZNY, Bogusław ŁAZARZ, Magdalena LETUŃ-ŁĄTKA

Transport Problems, Volume 16 , ISSUE 1, 39–49

Research Article | 21-April-2017

Study of the asynchronous traction drive's operating modes by computer simulation. Part 2: simulation results and analysis

. The description of methods applied in modeling of traction drive elements (traction motors, power converters, control systems), as well as of mechanical part and of "wheel-rail" contact, was given. In Part 2, the results of dynamic electromechanical processes modeling in various modes of electric locomotive operation (start and acceleration, traction regime in straight and curve railway sections, wheel-slide protection, etc.) are presented. In perspective, based on the developed model, the

Pavel KOLPAHCHYAN, Alexander ZARIFYAN Jr

Transport Problems, Volume 10 , ISSUE 3, 5–15

Research Article | 21-April-2017

The sophisticated control of the tram bogie on track

The paper deals with the problems of routing control algorithms of new conception of tram vehicle bogie. The main goal of these research activities is wear reduction of rail wheels and tracks, wear reduction of traction energy losses and increasing of running comfort. The testing experimental tram vehicle with special bogie construction powered by traction battery is utilized for these purposes. This vehicle has a rotary bogie with independent rotating wheels driven by permanent magnets

Radovan DOLECEK, Ondrej CERNY, Ivo DRAHOTSKY

Transport Problems, Volume 10 , ISSUE 3, 43–51

Research Article | 21-April-2017

Study of the asynchronous traction drive's operating modes by computer simulation. Part 1: Problem formulation and computer model

elements (traction motors, power converters, control systems), as well as of mechanical part and of "wheel-rail" contact, is given. The control system provides the individual control of the traction motors. Part 2 of the paper focuses on the results of dynamic processes modeling in various modes of electric locomotive operation.  

Pavel KOLPAHCHYAN, Alexander ZARIFYAN Jr

Transport Problems, Volume 10 , ISSUE 2, 125–136

Research Article | 21-April-2017

THE METHODOLOGY OF RATING QUALITY STANDARDS IN THE REGIONAL PASSENGER TRANSPORT

interaction of the transportation the peoples with the transport system. The paper is focussed on the quality evaluation of performance in regional passenger rail transport in relation to other modes of public transport. Hereby it is necessary to research the perception of quality services as well its value for the client (passenger) as well to on scientific approach. In this point of the technological process of transport, the main bearer of the quality of transport services are the vehicles and the

Vladislav ZITRICKÝ, Jozef GAŠPARÍK, Lumír PEČENÝ

Transport Problems, Volume 10 , ISSUE SE, 59–72

Research Article | 02-February-2017

CLASSIFYING RAILWAY PASSENGER STATIONS FOR USE TRANSPORT PLANNING – APPLICATION TO BULGARIAN RAILWAY NETWORK

;been used for the determination of the stops for categories intercity passenger trains. The main groups of stations for servicing express trains are the first, second, third, fourth and fifth groups. In the sixth group are stations for servicing fast passenger trains. The methodology can be applied to the study of all stations and stops in the rail network.

Svetla STOILOVA, Radina NIKOLOVA

Transport Problems, Volume 11 , ISSUE 2, 143–155

Article | 04-March-2018

RESEARCH OF THE DEFECTIVE FROG WING OF 1/11 MARK

Pavels GAVRILOVS, Viktors IVANOVS

Transport Problems, Volume 12 , ISSUE 4, 119–126

Research Article | 21-April-2017

RARE EARTH ELEMENTS IN RAILWAY INFRASTRUCTURE – POTENTIALS FOR AN INFORMATION SYSTEM AS A TOOL FOR OPERATORS AND OTHER STAKEHOLDERS

, proposes a basic conceptual design of an information system for evaluation and analysis of these elements. This was done by contextual analysis where the relevant stakeholders such as infrastructure operators or industry, were identified. The analysis included the demand of the stakeholder for such an information system. Thus, the design and the architecture of an information system was specified. The system should provide a tool for operators of rail infrastructures to get a systematic overview on the

Frank MICHELBERGER, Hirut GROSSBERGER, Peter JUDMAIER

Transport Problems, Volume 10 , ISSUE SE, 111–124

Article | 24-March-2018

TRAJECTORY-BASED MULTIMODAL TRANSPORT MANAGEMENT FOR RESILIENT TRANSPORTATION

The transport of goods and persons with two or more transport carriers (road, rail, air, inland waterway, or sea) results in multipartite transport chains whose profitability depends on the cost-effectiveness of the transport carriers involved as well as on the capability of multimodal transport management. Currently, differences with regard to the technical equipment used and infrastructural facilities available as well as administrative and public organizational structures in place are the

Evelin ENGLER, Stefan GEWIES, Paweł BANYŚ, Erik GRUNEWALD

Transport Problems, Volume 13 , ISSUE 1, 81–96

Article | 14-July-2019

MODELING OF THE RAIL FREIGHT TRAFFIC BY THE METHOD OF ECONOMIC-GEOGRAPHICAL DELIMITATION IN THE REGION  OF THE SOUTH-EASTER COAST OF THE BALTIC SEA

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