scholarly journals Impact of carrying capacity on the functioning of the railway network

2020 ◽  
Vol 329 ◽  
pp. 01015
Author(s):  
Alexey Volodin ◽  
Nadezhda Gudkova ◽  
Alexey Astafiev ◽  
Vadim Alferov ◽  
Jozef Majerčák

Traffic flows associated with the movement of passengers and goods, characterized by traffic intensity, speed, direction and other factors are closely interrelated. The planned traffic intensity of these flows is de-termined by calculating the carrying capacity of the elements of the transport system or links in the delivery chains. The article provides a comprehensive analysis of the throughput capacity of a railway line, rail-way station, railway stations and landside areas, airports, and highways. Calculated dependencies, used to determine the carrying capacity of transport infrastructure facilities, have been carry out. It is shown that the throughput (capacity) of infrastructure facilities is focused, most of all, on the volume of cargo transportation in various industries. The factors that must be take into account when determining the conditions for further de-velopment and increasing the capacity of transport infrastructure elements are noted. All calculation methods are reduced to determining the maxi-mum permissible volume of cargo transportation (in passenger traffic, - passengers) that can be passed (processed) by an infrastructure object per unit (for a certain period) of time in the considered road transport and weather and climatic conditions.

2020 ◽  
Vol 1 (4) ◽  
pp. 322-328
Author(s):  
A. B. Volodin ◽  
A. P. Lutay ◽  
P. V. Kurenkov

The subject of the research is the analysis of approaches to determining the bandwidth of transport infrastructure facilities. The bandwidth is influenced by many factors, depending on the technical parameters of the infrastructure. Therefore, in order to obtain reliable data, indicators are taken into account that characterize the interaction of objects and infrastructure in various conditions. Analytical, marketing, project methods were used; methods of modeling, logistics, visualization, lean manufacturing; materials of general access to the Internet resources of transportation companies and other participants in the transportation process. A comparison of transport bandwidth is presented. It was revealed that the throughput capacity of devices is focused most of all on the volume of traffic in various spheres of industry and production. All calculation methods are reduced to determining the maximum number of objects that the infrastructure can pass in a unit of time in the considered road transport and weather and climatic conditions. It was found that the existing approaches to determining the bandwidth of transport infrastructure objects take into account many indicators and conditions of interaction between subjects and infrastructure objects in different models of behavior, show how effectively a certain element of the supply chain is functioning, and also identify bottlenecks that impede the smooth operation of the system.


2018 ◽  
Vol 180 ◽  
pp. 06005
Author(s):  
Andrzej Massel

The process of electrification of the Polish railways took place from 1936 till early 1990s. Despite the political constraints of the post-war times, the decisions on electrification of particular sections of the railway network were usually based on economic factors. In 1970s and 1980s so called electrification thresholds were used to justify the need for electrification of railway line in question. They took into the number of tracks (single-track lines, double-track lines), terrain conditions (flat terrain, upland terrain) and the traffic structure (the share of passenger traffic) into account. In the framework of National Railway Program till 2023 (KPK) the realization of electrification projects have been undertaken again. The present paper deals with importance of the operational criteria in the decision-making concerning justification of electrification of railway lines. These criteria include the shortening of the journey times on particular sections, shortening of stops on the stations with the change of the type of traction, the savings of train operating companies resulting from the traction unification (change of demand for rolling stock and for workshops for its servicing), improvement of reliability and punctuality of services.


2020 ◽  
Vol 11 (2) ◽  
pp. 160-171
Author(s):  
P. S. Kuzmin

The greatest prospects associated with transnational rail freight are determined by the use of containers. In Russian publications, the development of containerized cargo transportation is mainly considered by analyzing the general laws of functioning of international transport corridors. At the same time, aspects affecting infrastructure diagnostics and analysis of the throughput capacity of sections of the railway network are not considered.The purpose of the study was to identify the characteristics of freight flows in the direction of the EU—EAEU—PRC, to identify infrastructure barriers that slow down the acceleration and increase in the volume of container railway freight transportation, as well as to develop a set of measures aimed at improving the competitiveness of container railway freight transportation along the transport corridors of the Russian Federation.In the course of the study, infrastructural diagnostics was carried out, which revealed a number of barriers that did not allow realizing the growth potential of transit container cargo transportation.To remove infrastructure barriers, it is necessary to implement a number of measures, the key of which are measures to increase the capacity of infrastructure at border crossings, increase the speed of trains along the railway networks of JSCo RZD, develop terminal and logistics centers that provide a wide range of services for consignors and consignees.The development of container rail freight is a strategically important area for the Russian Federation. The well-coordinated work of Russian Railways with private investors and the state in the framework of expanding and modernizing the terminal infrastructure, as well as increasing intermodal interactions, is able to overcome the existing infrastructure barriers and ensure the growth of container transit in the required volumes.


2021 ◽  
Vol 264 ◽  
pp. 02012
Author(s):  
Abdubaki Kayumov ◽  
Barno Salimova ◽  
Raykhon Khakimova ◽  
Azizjon Kayumov

Modern trends in road construction (an increase in traffic intensity and carrying capacity of road transport, expansion of the network of roads, including local ones) put forward the problem of the need not only to increase the durability of road structures but also to use local materials and soils in road construction. Considering that many regions of Uzbekistan experience a shortage of materials for the construction of foundations, and their delivery is associated with additional transport costs, the relevance of using local soils in the bases of road pavements becomes obvious. Recently, there has been an increased interest in methods of physical and mechanical stabilization of soils using stabilizers. Dependence is proposed that allows one to determine the strength and deformation characteristics of stabilized saline soils.


2019 ◽  
Vol 6 (4) ◽  
Author(s):  
Taisiya Shepitko ◽  
Igor Artyushenko

Currently, the development of communications in the North is becoming increasingly important for the economy of the Russian Federation. According to the strategy for the development of railway transport until 2030, the construction of the Northern latitudinal passage railway will allow unloading the Trans-Siberian Railway, get transport approaches to the gas and oil fields of the Yamalo-Nenets Autonomous District, and later the Krasnoyarsk Territory, and provide communication with the ports of the Northern Sea Route. The complexity of construction in these regions is due to several reasons: the presence of weak soils in the foundations of structures, the unpredictability of the behavior of frozen soils during freezing-thawing, difficult climatic conditions, and the lack of transport infrastructure. To ensure the stability and sustainability of the subgrade on the Northern latitudinal passage section of the new Obskaya-Salekhard railway line PK 01+50 – PK 06+50, the authors proposed a decision to reinforce the foundation soils with vertical columns of crushed stone. This improvement technology is used in the North for the first time, but it has proven itself in areas with weak foundations. The Northern latitudinal passage section of the new Obskaya-Salekhard railway line PK 01+50 – PK 06+50 is carried out according to the II design principle with the assumption of permafrost thawing. This article has performed and analyzed the modeling of thermophysical processes both with the use of this technology and without it. Conclusions are drawn on the appropriateness of using this technology in the permafrost zone. The results presented in the article are part of the dissertation research I. Artyushenko «Reinforcement of the subgrade base with vertical columns of crushed stone in areas with permafrost soils».


10.12737/6694 ◽  
2014 ◽  
Vol 8 (6) ◽  
pp. 140-157
Author(s):  
Инна Гладская ◽  
Inna Gladskaya ◽  
Людмила Ульянченко ◽  
Lyudmila Ulyanchenko

The article has a Yaroslavl region transport infrastructure study and evaluation. The authors regarded such transport infrastructure aspects, as the presence and composition of messages between the Yaroslavl region and neighboring regions, studied the availability, quality of roads of federal, regional and local importance, including road considered by category, traffic, etc parameters. The freight and passenger traffic on the railway and road transport volumes are presented as a comparison. The article has also the analysis of the cash rolling stock vehicles. As one of the transport security aspects is studied the road accidents and connected with it death dynamics. For Road Trips highways fitness evaluation had been taken an 11 Yaroslavl region companies pool on a range of issues, including the presence and transport infrastructure level and roadside service on the main tourist routes. In addition, were presented the federal highway M8 Holmogory from Moscow to Yaroslavl (of one or two ways directions) some audit service results. The article contents the research results, based on them, were concluded the main findings about the potentials and restrictions on the motor-car tourism as a most perspective one for the Central Federal District region. In general, the authors concluded the inadequate transport system developing in the Yaroslavl region. It is, of cause, the limiting factor. But, cause the transport system special program existing, the region authority is interesting in this tourism type developing.


Author(s):  
S. P. Vakulenko ◽  
◽  
A. V. Kolin ◽  
D. Yu. Romensky ◽  
K. A. Kalinin ◽  
...  

The development of railways is the most important condition for maintaining its position at the transportation market and increasing the competitiveness of railway transport in future. This may be, for example, the specialization of existing railway lines on the line with mainly freight and on the line with mainly passenger traffic. But due to the insufficiently dense railway network, the implementation of such projects leads to appearance of large train runs and an increase in the cost of transportation. The article shows that the organization of high - speed railway traffic on the existing mainline reduces the train running time by using the example of Moscow - Voronezh - Rostov-on-the-Don - Krasnodar - Sochi transport corridor, which is experiencing a shortage of carrying capacity, and the project of specialization of the mainline for high-speed passenger traffic. In the conditions of fierce competition with air and road transport, the travel time of 16-18 hours to Sochi will not change the distribution of passenger traffic between modes of transport, but only maintain the status quo. But the removal of freight traffic from the Voronezh - Rostov line will bring big losses both for JSC «Russian Railways» (the loss of the cargo base) and for the economy of the whole country. The ETW method is used to compare the overall environmental impact of freight trains movement on a non-circular route, their movement through Volgograd, as well as on road transport. It is proved that when the cargo flow is carried out on a circular route, the environmental advantage of railway transport is lost, and its impact is compared with that of road transport. It is concluded that instead of specialization of the existing congested lines, it is necessary to consider the phased construction of a new specialized high-speed railway (HSR), for the payback of which there is already sufficient passenger traffic in this transport corridor.


Author(s):  
A. K. Barinov

The development of transport infrastructure is a priority objective for many African countries. This process has significant impact on the efficiency of continental and world trade corridors, and also influence on the costs of economic activity. In this case, the transformation in the transport sector of Ethiopia must be noted. The government of the country has taken a decision to create national railway network and develop aviation and road lines of communication. After The Eritrean War of Independence Eritrean separation was announced and Ethiopia lost its maritime infrastructure and became a landlocked country. This situation provides great difficulties in process of international trade and economic activity for the region. Now the development of transport corridors which connect economic centers with large ports of the region is a priority task for Ethiopian government. In this case Ethiopia is actively attracting foreign investors and world financial organizations to create stable, efficient and economically profitable ways of transport communication with the port infrastructure of neighboring countries. This year, Chinese companies finished to rebuilt the railway line Addis Ababa-Djibouti, in the coming years, governments of Kenya and Ethiopia, will launch new Mombasa-Nairobi-Addis Ababa motorway. This infrastructure projects are essential for enhancing Ethiopian competitiveness and economic activity and provide opportunity to reduce transport costs. Moreover, the Ethiopian authorities are making great progress in developing the internal transport infrastructure, first of all, in terms of increased paved road and development of railway infrastructure, which promotes more efficient use of natural,economic and human resources. Foreign companies are actively involved in realization of this transport projects and it can be a perspective area for cooperation between Russian Federation and Ethiopia. The article provides a detailed overview of Ethiopian transport sector and describes the key infrastructureprojects which can be interesting for Russian companies.


2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Igor Artyushenko

In the design, construction and further operation of communication lines on permafrost soils, the most urgent task is to ensure the reliability of the foundation of the structure. The complexity of construction in the North is due to the presence of permafrost soils in the foundations of buildings, a large number of natural barriers, extreme climatic conditions and lack of infrastructure. In this regard, the choice of structural, technological and organizational solutions for the development of transport infrastructure, including for railways and, first of all, a deformability forecast, measures to ensure the stability of the soil base and the development of rational organizational schemes for their implementation, should be economically feasible, optimal or close to optimal for a particular engineering structure and the region of its location. To ensure stability and sustainability of the soil base of the structure on the Northern Latitudinal Railway section of the new Obskaya-Salekhard railway line, PK 01+50 – PK 06+50, the author proposes a solution to strengthen the base soil with vertical columns of crushed stone. This article shows the effect of vertical columns of crushed stone on the strength characteristics of permafrost soils of the base of the structure. The dependence of the strength characteristics of the soil base on the different steps of the placement of vertical columns of crushed stone is shown. The conclusion is drawn about the most optimal spacing step according to the results of calculations and comparison of various steps of arranging vertical pillars from crushed stone. The results presented in the article are part of the dissertation research I. Artyushenko «Reinforcement of the subgrade base with vertical columns of crushed stone in areas with permafrost soils».


Author(s):  
P.I. Tarasov

Research objective: studies of economic and transport infrastructure development in the Arctic and Northern Territories of Russia. Research methodology: analysis of transport infrastructure in the Republic of Sakha (Yakutia) and the types of railways used in Russia. Results: economic development of any region is proportional to the development of the road transport infrastructure and logistics. When a conventional railway is operated in the Arctic conditions, it is not always possible to maintain a cargo turnover that would ensure its efficient use, and transshipment from one mode of transport to another is very problematic. A new type of railway is proposed, i.e. a light railway. Conclusions: the proposed new type of transport offers all the main advantages of narrow gauge railroads (high speed of construction, efficiency, etc.) and helps to eliminate their main disadvantage, i.e. the need for transloading when moving from a narrow gauge to the conventional one with the width of 1520 mm, along with a significant reduction in capital costs.


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