MODERN ROLLING COMPOSITION OF RAILWAY TRANSPORT. MAIN TRENDS IN TRANSPORT ENGINEERING

2020 ◽  
Vol 2 (3) ◽  
pp. 47-52
Author(s):  
A. G. YEROYAN ◽  
Keyword(s):  
Rolling Stock ◽  
Rail Transportation ◽  
Railway Transport ◽  
Large Cities ◽  
Technical Parameters ◽  
Transportation Process ◽  
Cargo Transportation ◽  
Increasing Demand ◽  
Modern Rolling

The article explores the main technical parameters of modern electric locomotives in Russia. The renewal of the locomotive complex directly affects the quality of the transportation process. Due to the growing volume of cargo transportation, the intensity of passenger train traffic between large cities, the growth of transit container traffic, the existing dilapidated rolling stock needs updating to be ready for the annually increasing demand for rail transportation.

scholarly journals Effectiveness of arrangement of the long cargo transportation on the fi tting platforms with different length of freight storage

2019 ◽  
Vol 78 (4) ◽  
pp. 203-209
Author(s):  
S. V. Mozgrin ◽  
G. E. Pisarevskiy
Keyword(s):  
Economic Effect ◽  
Economic Assessment ◽  
Operating Conditions ◽  
Rolling Stock ◽  
Rail Transportation ◽  
Technological Solution ◽  
Specific Data ◽  
Transportation Process ◽  
Cargo Transportation ◽  
Calculation Unit

Fitting platforms of variable freight storage lengths are used for transportation of rails and other cargo up to 25 m long. The use of innovative fixation for transportation on the fitting platforms contributes to enlargement of the range of cargo transported on such rolling stock and establishes conditions for safe transportation of such cargo.To evaluate the effectiveness of the arrangement of long cargo transportation on the fitting platform, this study examines two 25 m long rail transportation options. The transportation option involving two coupled 14.62 m platforms, when the cargo is fixed on the coupled platforms with the standard method is the basic option. The new option involves transportation of the 25 m long rails using 80-feet fitting platforms 25.62 m long at the coupling axes and multiway fi xation sets. A calendar year is assumed as the estimate period. The transported volume is assumed equal for each option, under considering the operating conditions of the calculation unit — one coupling of universal platform (or one 80-feet fitting platform), reducing the financial results to a ton of transported cargo. The value of the annual economic effect for the freight owner (Eyearown) is determined as the change of the freight owner’s expenses due to usage of the new option relative to the basic transportation option.The economic assessment of the transportation is performed considering the interests of each member of the transportation process and tested based on specific data. The results demonstrate the effectiveness of implementation of the technical and technological solution under consideration.

Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov
Keyword(s):  
Rolling Stock ◽  
Railway Transport ◽  
Transport Services ◽  
Railway Infrastructure ◽  
External Conditions ◽  
The Republic ◽  
Railway Operation ◽  
Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

scholarly journals Determining the Rational Motion Intensity of Train Traffic Flows on the Railway Corridors with Account for Balance of Expenses on Traction Resources and Cargo Owners

2019 ◽  
Vol 20 (3) ◽  
pp. 215-228 ◽  
Author(s):  
Tetiana Butko ◽  
Mykhailo Muzykin ◽  
Andrii Prokhorchenko ◽  
Halyna Nesterenko ◽  
Halyna Prokhorchenko
Keyword(s):  
Genetic Algorithm ◽  
Mathematical Model ◽  
Reference Station ◽  
Limited Resources ◽  
Rolling Stock ◽  
Traffic Flows ◽  
Railway Transport ◽  
Real Coded Genetic Algorithm ◽  
Cargo Transportation ◽  
Destination Point

Abstract The article proposes a method for determining the rational motion intensity of specific train traffic flows on railway transport corridors with account for balance of expenses on traction resources and cargo owners. A mathematical model based on stochastic optimization is developed, which allows to optimize, in the conditions of risks, the interval between trailing trains on the railway lines taking into account the limited resources of the traction rolling stock, the capacity of the stations and freight fronts at the cargo destination point. Solving this mathematical model allows to find a balance between the expenses for movement of train traffic flows from different railway lines to their terminal reference station and the expenses of a consignee, subject to the limitations of the technological logistics chain in cargo transportation. For the solution of this mathematical model, a Real-coded Genetic Algorithm (RGA) was used.

scholarly journals Digitization in Rail Transport

2020 ◽  
Vol 64 (188) ◽  
pp. 137-148
Author(s):  
Janusz Poliński ◽  
Krzysztof Ochociński
Keyword(s):  
Customer Service ◽  
Traffic Management ◽  
Transport Infrastructure ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Traffic ◽  
Railway Industry ◽  
Operations And Maintenance ◽  
Trained Staff

Digital transformation in the railway industry is an important element in the development of railways and should benefit commuters, railway operators, infrastructure managers and rolling stock manufacturers. The process of digitization applies to two domains, i.e. customer service and railway companies’ operation. This paper aims to present previous eff orts regarding the use of digital technologies in customer relations and in the field of operations and maintenance, which translates into the quality of services provided. This paper highlights important concepts of this domain with respect to passenger and freight transport, infrastructure, railway rolling stock and railway traffic management. It is also argued that the process of digitization needs properly trained staff . Examples of innovative initiatives of Polish and European railway companies are covered. Keywords: railway transport, digitization, digitization of the railways

scholarly journals Consideration of quality change of railway transport maintenance operations in managing costs of goods transport

2018 ◽  
Vol 239 ◽  
pp. 03005
Author(s):  
Lidia Shkurina ◽  
Eugenia Maskaeva ◽  
Stanislav Maskaev
Keyword(s):  
Cost Management ◽  
Rolling Stock ◽  
Market Demand ◽  
Railway Transport ◽  
Quality Change ◽  
The Cost ◽  
The Impact ◽  
Financial Result ◽  
Freight Market

the authors reviewed the quality of operational work of railway transport in the cost management system, presented methods for assessing the impact of the quality of rolling stock on the current costs of transportation activities, considered the issues of the impact of the quality of operational work on the formation of freight market demand and of financial result of the transport company - the owner of infrastructure and traction rolling stock, represented methods of assessing financial and economic efficiency of improving the quality of operational work for the company - a participant of the freight market.

scholarly journals Technical parameters of high speed lines as the determinant for selection of rolling stock

2018 ◽  
Vol 180 ◽  
pp. 06007
Author(s):  
Jan Raczyński
Keyword(s):  
High Speed ◽  
Point Of View ◽  
Rolling Stock ◽  
High Speed Rail ◽  
Technical Parameters ◽  
Rail Vehicle ◽  
Railway Infrastructure ◽  
The One ◽  
Selection Of

Choosing a high-speed rail vehicle depends on many factors. On the one hand, there are requirements for ensuring the quality of service for passengers, on the other hand, there are constraints resulting from the parameters of available infrastructure. Also a relation of the benefit and financial costs associated with the purchase and the operation of rolling stock is essential. Technical characteristics of vehicles selected for operating a particular system is a compromise between the three groups of requirements. In this article technical parameters of railway infrastructure and rolling stock are classified and then analysed from the TSI requirements point of view.

scholarly journals FEATURES OF RESEARCH OF COMMERCIAL FAULTS OF CARGO TRANSPORTATION WHEN EXECUTING FORENSIC RAILWAY TRANSPORT EXAMINATIONS

2019 ◽  
pp. 600-608
Author(s):  
O. Dzhus
Keyword(s):  
Research Work ◽  
Causal Link ◽  
Technical Condition ◽  
Rolling Stock ◽  
Railway Transport ◽  
Spontaneous Movement ◽  
Loss Of Life ◽  
Parking Lot ◽  
Cargo Transportation ◽  
The Impact

In the article was noted the importance of the study of the conditions for the carriage of goods by rail transport when executing the railway transport examination, and the main points of such studies are given. One of the causes of the onset of a railroad accident (hereinafter referred to as RTA) with damage to the rolling stock, infrastructure elements, loss of life and loss of cargo through damaged packaging, the integrity of the car body may be a mismatch of the cargo weight with established weight standards, unsatisfactory the technical condition of the rolling stock in which the cargo is transported, improper securing of the cargo in the car, disorder of attachment on the route or interference of unauthorized persons to the cargo itself (theft). As a part of the railway-transport expertise, experts investigate cases of derailment of railway rolling stock, spontaneous movement of cars from the parking lot, followed by their collision, and other cases. Upon the occurrence of an RTA, the compliance of the actions of the railway employees involved with the requirements of regulatory documents, the causal link and the immediate technical reason for its occurrence is investigated. Experts carrying out research within the examination regarded various possible discrepancies that could cause the occurrence of RTA. The inconsistency of the mass of the cargo with the established weight standards for transportation by rail is considered by experts, precisely as a possible discrepancy that could significantly affect the occurrence of the accident. This direction of research requires detailed consideration from the position of forensic expertise. The article discusses individual issues of this type of inconsistency. These points are considered in more detail in a research work devoted to a study of the main transport characteristics of the goods transported and their packages, with an assessment of the possibility of their influence on the causal relationship with the onset of the RTA as part of the railway transport expertise. Each type of faults (inconsistencies) identified during the carriage of goods by rail is investigated as part of the implementation of forensic railway transport examinations and requires the formation of detailed expert approaches. The presented work confirms the relevance of developing a methodology for assessing the impact of cargo transportation features on the onset of railway accidents. Key words: commercial malfunctions, forensic railway-transport expertise, cargo, features of transportation, fasteners, weight standards.

RESEARCH OF RAILWAY TRANSPORTATION OF FREIGHT BY GROUP AND SINGLE CARS

2020 ◽  
pp. 150-162
Author(s):  
V. Gaba ◽  
O. Strelko ◽  
T. Hrushevska ◽  
I. Gusar
Keyword(s):  
Mathematical Model ◽  
Delivery Systems ◽  
Rolling Stock ◽  
Railway Transport ◽  
Railway Transportation ◽  
Final Value ◽  
Cargo Delivery ◽  
Cargo Transportation ◽  
The Cost ◽  
Cost Of Transportation

The influence of the existing conditions of operational work at transportation of cargoes by group and single cars is investigated. An analysis of modern approaches to improving the efficiency of the car fleet and the competitiveness of railway transport in the transport market of Ukraine. The most perspective approaches and directions of improvement of cargo delivery systems are allocated. A study of the efficiency of the organization of transportation by the criterion of total car-hours of downtime under accumulation. A mathematical model of chemical cargo transportation by carriage, group shipments and transportation of container trains with accumulation to technical norms of trains in the directions of transportation has been developed. The efficiency of two models of chemical cargo shipment organization is compared and a more efficient transportation option is identified. It is established that for more efficient use of rolling stock and reduction of car turnover there is transportation of goods in cars as a part of a container train. The influence of the components of the car turnover on its final value is analyzed. A study of the cost of transportation of benzene in tanks and tank containers in some areas. According to research, the cost of transporting benzene in tank containers on railway ownership platforms is twice less than in private tanks and tanks of Ukrzaliznytsia fleet. These recommendations will improve the process of transportation and increase the volume of goods by rail.

scholarly journals Increasing Competitiveness of Passenger Rail Transportation Amid Organizational and Structural Transformations

2018 ◽  
Vol 7 (4.3) ◽  
pp. 477
Author(s):  
U V.Myroshnychenko ◽  
I V.Motsna ◽  
N V.Gritsenko
Keyword(s):  
Service Provision ◽  
Critical Level ◽  
Structural Transformations ◽  
Rail Transportation ◽  
Railway Transport ◽  
Passenger Traffic ◽  
Financial Condition ◽  
Passenger Rail ◽  
Passenger Transportation

The decline in the volume of passenger traffic, the critical level of financial condition, and the depreciation of the material and technical base caused a significant economic downfall of the railway transport. The reorganization of structural units is intended to improve the quality of service provision, which affects the final demand of consumers, which influences the volume and profitability of passenger transportation. The author suggests applying the principles of the organization of the revenue account from passenger transportation, exempt from VAT, to reduce its loss ratio amid organizational and structural transformations during the reshaping of passenger transport segment. Increasing the competitiveness of passenger rail transportation will contribute to the economic development of the entire nation.  

scholarly journals Increasing the Efficiency of Railway Transport by Improvement of Suspension of Freight Wagons

1970 ◽  
Vol 24 (6) ◽  
pp. 487-493 ◽  
Author(s):  
Dragan Petrović ◽  
Milan Bižić ◽  
Milomir Gašić ◽  
Mile Savković ◽  
Vladeta Gajić
Keyword(s):  
Suspension System ◽  
Rolling Stock ◽  
Economic Losses ◽  
Railway Transport ◽  
Railway Freight ◽  
Transport Organization ◽  
Technical Reliability ◽  
Railway Rolling Stock ◽  
Freight Wagons

Railway transport has a very important role in economy of every country. The efficiency of railway transport depends both on the quality of transport organization and on the technical reliability of the railway rolling stock. During operation of the railway freight wagons in the last years, a large number of breaks of suspension system elements have been noticed. This feature is especially reported at four-axle double wagon for coal transport (designated Fbd) and three-axle wagon for transport of cars (designated DDam). Frequent breaks of suspension system elements reduce the efficiency of transport and in some cases cause derailment of wagons and lead to large economic losses. In this paper, the causes of breakage of suspension on both wagons (Fbd and DDam) have been analyzed, but also the possibilities of how to resolve these problems, i.e. how to reduce them to a minimum or avoid them completely.

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