RESEARCH OF RAILWAY TRANSPORTATION OF FREIGHT BY GROUP AND SINGLE CARS

Author(s):  
V. Gaba ◽  
O. Strelko ◽  
T. Hrushevska ◽  
I. Gusar

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.

2019 ◽  
Vol 20 (3) ◽  
pp. 215-228 ◽  
Author(s):  
Tetiana Butko ◽  
Mykhailo Muzykin ◽  
Andrii Prokhorchenko ◽  
Halyna Nesterenko ◽  
Halyna Prokhorchenko

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.


2019 ◽  
Vol 294 ◽  
pp. 04010
Author(s):  
Vasyl Gaba ◽  
Tetiana Hrushevska ◽  
Oleg Strelko ◽  
Anna Kyrychenko ◽  
Marina Rudyuk ◽  
...  

It is considered the possibility of improvement of the international railway transportation of benzene and other related cargoes between Ukraine and the European Union countries for the carriage of these cargoes in tank containers. The volume of chemical cargo transportation to the EU countries to the rolling stock types for 2018 has been analyzed. The research of the effectiveness of organization of international transportation according to the criterion of the total hours of downtime by wagons under accumulation. The mathematical model of chemical cargoes transportation by wagons, wagon groups and container trains with the accumulation to the technical standards on the cargo diversions was elaborated. The models take into account the unevenness of the wagon arrivals to the accumulation points and observance of the number of wagons to the established norm. A comparison of the effectiveness of the two models of the organization of the chemical cargo delivery and it was defined a more effective version of transportation. It has been established that for more efficient using of the rolling stock and for the rolling stock circulation decreasing is the cargo transportation by trains which consist of cisterns or/and tank container carriages. The influence of the components of the rolling stock circulation and its value are analyzed. The research of the cost of benzene transportation in cisterns and tank containers for the individual diversions was studied. According to the research results the cost of benzene transportation by platforms of the railways ownership is less than twice in comparison to private cisterns and tank-containers of the Ukrainian Railways fleet. These recommendations will improve the process of transportation and increase of volumes of international cargo by railroads between Ukraine and the EU countries.


2020 ◽  
Vol 17 (3) ◽  
pp. 66-73
Author(s):  
V. V. Umanets

The article provides a brief overview of the main ßunctional areas of the divisions of a large transport and logistics company, JSC "Russian Railways". The main risks of railway transport are highlighted. Risks related to logistics in the context of the main business blocks of JSC "Russian Railways" and their functional divisions are highlighted.Some methods of logistics risk management for cargo transportation by rail, which are widely used in logistics, are considered. The analysis of the main logistics risks in the transport of goods by rail using such methods is carried out. This includes the classification of logistics risks. The obtained quantitative and qualitative data are systematized and structured in the form of a semantic model of the main logistics risks and risk factors that led to the violation of the terms of cargo delivery during railway transportation.When building the model, we used previously conducted studies of risk factors emanating from third-party organizations that perform work, services, and deliveries based on contracts for divisions of JSC "Russian Railways".The obtained research results in the form of a semantic model are proposed to be used as a tool for managing logistics risks.


2021 ◽  
Vol 2 (21) ◽  
pp. 89-96
Author(s):  
E.V. Ibragimov ◽  

Increasing the productivity and efficiency of agricultural cargo transportation in the agro-industrial complex of the Russian Federation is achieved through the use of tractor trains consist-ing of tractors and trailer links, the main of which are trailers. This method allows you to ensure the quality and safety of agricultural goods, as well as reduce the cost of transportation. During the analysis of the known designs of tractor-trailer dump trailers, it was revealed that a character-istic drawback is the imperfection of the design of the locking elements of the platforms designed to fix them on the chassis. As a result, a promising technical solution was developed, which, in comparison with the known ones, has a simple design and increased efficiency when fixing the bodies on the chassis. The article describes the design and the principle of operation of this tech-nical solution. The results of the structural strength calculation are presented. The conducted check showed that the obtained value of the safety factor, equal to 2.2, will ensure the operational reliability of trailed dump vehicles. The results of the study are recommended to both domestic and foreign research institutes, design and production structures of the automotive industry for further study and refinement of the proposed device with a view to its possible implementation in practice.


2018 ◽  
Vol 239 ◽  
pp. 03005
Author(s):  
Lidia Shkurina ◽  
Eugenia Maskaeva ◽  
Stanislav Maskaev

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.


2015 ◽  
Vol 5 (4) ◽  
pp. 97-102
Author(s):  
Макеев ◽  
Viktor Makeev

Improving the efficiency of freight transport and industrial processes of forest complex is of great importance in the production activities of its business depends on many factors. The most important factor is the choice of the type operated by forestry staff and capacity of its units. In a scientific paper delivered and successfully solved the problem of determining the optimum load capacity of rolling stock unit forestry given distance transportation of timber cargo and average technical speed of vehicles in the transportation of timber cargo. At the same time optimal load unit Forestry rolling stock is determined by the conditions at the lowest cost to transport certain types of timber cargo and operational performance logging train (short log). The formula determining the cost of transportation of one ton (1 m3) timber cargo, which was the basis for the determination of the optimum load capacity of logging trucks. For greater clarity of how the optimal load on the logging train hauling timber (timber assortments) of the distance transportation, ways to perform loading and unloading operations and technical speed on the example of existing timber companies (Kulikovskii forestry) built a graph.


Author(s):  
V. Aslanov

Goal: investigate legal issues on membership of the Republic of Azerbaijan in the International Criminal Court. Methods of research: analysis and study of regulatory documents containing provisions on the international railway carriage of goods. Railway transport in developed countries takes a leading place in comparison with other modes of transport. This is due to its versatility – the ability to serve various sectors of the economy and meet the needs of the population in transportation, regardless of the conditions in which the transportation is carried out. Therefore, for almost two hundred years, rail transport remains the main means of moving goods. There are several types of international transportation known to international rail freight traffic, each of which has its own legal characteristics. Consider the following types of transportation: 1. Transportation of direct and indirect messages. 2. Rail or mixed international transport. 3. Non-reloading and reloading international transportation. 4. Neighboring and transit international transportation. 5. International traffic with reconsignment and border transportation. 6. Special types of cargo transportation. Among the listed types of transportation, in our opinion, currently the most effective are mixed container transportation or intermodal, multimodal, combined, i.e. involving two or more modes of transport, and the delivery process itself was called “intermodal” or “multimodal” transportation. Discussion: offering a comprehensive and detailed study and use of this practice in academia.


2019 ◽  
pp. 600-608
Author(s):  
O. Dzhus

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.


Author(s):  
О. В. МУРАДЯН

Purpose. The purpose of the article is to study the development of technologies and technical means of transportation of grain cargoes by rail in Ukraine. Methodology. The research was carried out on the basis of methods for analyzing the state of development of the processes of transportation of grain cargo in Ukraine and in other states, as well as analysis of literature sources, statistical reports on the export of grain, the state of railways. Results. The paper deals with the history of development and the problem of organizing cargo transportation to seaports by independent carriers. The needs for reducing the cost of transportation of grain cargo are determined. It has been established that when solving this issue, one should use the achievements of domestic scientists, as well as the know-how of advanced developed countries in the implementation of grain transportation. The study shows the potential for applying foreign experience, taking into account the peculiarities of the local specifics of the development of political and geographic conditions and the existing infrastructure. Scientific novelty. The scientific novelty of the work lies in the fact that it provides a study of methods for organizing the transportation of grain cargo by rail, used in the world and an analysis of the possibility of their application in Ukraine. Practical significance. The practical significance of the work lies in the fact that it can be used for further research, development of a state development program and assistance to the agro-industrial industry of Ukraine, in the analysis of the construction of new elevators, the introduction of new transportation technologies, as well as for assessing the costs associated with various logistics schemes for grain delivery to seaports.


Author(s):  
Naim Kuka ◽  
Caterina Ariaudo ◽  
Riccardo Verardi ◽  
João Pombo

The rail infrastructure and the track components are expensive assets with long life spans and high maintenance costs. The cost efficiency, performance and punctuality of train operations heavily depend on the track conditions. Ideally, the railway track would be completely smooth providing continuous support to the rolling stock running on it. In practice, however, the infrastructure cannot be installed without irregularities. These defects will increase over time due to the service loads imposed by the railway vehicles. The aim of this work is to use advanced computational tools to predict how the vehicles will respond to changing levels of track defects. For this purpose, the track and its maintenance conditions are characterized in realistic operation scenarios and modelled with detail in order to enable studying the interaction loads that are imposed to the vehicles by the track conditions. The presented methodology enables to identify the track health indexes that have higher influence on the dynamic loads transmitted to the rolling stock. It was observed that the track layout, track irregularities and degradation of the rails have the larger influence on the vehicle-track interaction loads with consequences in terms of safety and maintenance costs. In this way, this work contributes to the development of solutions with technological relevance, giving answer to the industry’s most recent needs in terms of reducing the maintenance costs and decreasing the incidents that cause traffic disruptions, contributing to improve the competitiveness of the railway transport.


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