Academic literature on the topic 'Railway yard track'
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Journal articles on the topic "Railway yard track"
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Qiao, Rui Jun, Xiao Ning Zhu, and Wei Yan. "Optimized Utilization of Station Arrival and Departure Tracks for Passenger Dedicated Lines." Advanced Materials Research 468-471 (February 2012): 2450–54. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2450.
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For running trains according to timetable, it is very important to arrange appropriate arrival and departure tracks to trains transacted by passenger dedicated line station. Builds optimized model of arrival and departure track utilization, the optimization objective is maximizing the sum of weights of trains using tracks, and having the most balanced utilization schedule. For constraints, it is different from existing railway station that the two turnaround trains share the same train-set must be arranged to the same arrival and departure track, and this paper considers the constraint seriously. Taking Beijing South Railway Station inter-city yard as an instance, use the method put forward in this paper to calculate the arrival and departure track utilization schedule. Compared with existing schedule, the result calculated makes the arrival and departure track utilization more balanced.
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Yanovsky, Petro, Sergiy Lytvynenko, Larysa Lytvynenko, and Volodymyr Tkachenko. "Technical and economic evaluation of justification for preventing negative effects of feedback in local elements of interaction of rail yards." SHS Web of Conferences 67 (2019): 02013. http://dx.doi.org/10.1051/shsconf/20196702013.
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The operation of rail yards is characterized not only by direct links, but also by feedback in the local elements of interaction, resulting in a violation of interaction conditions between adjacent elements, which causes a negative effect on the state and functioning of the elements. The duration of the track occupation in the arrival yard depends on both its parameters: the marshalling hump and the operation of other elements of the yard located at the arrival yard in the direction of cargo traffic processing. Therefore, when choosing the rational parameters of the rail yards, attention should be paid to the existence of feedbacks in the local elements of interaction and conditions of their negative manifestation should be investigated in order to justify measures to eliminate them. In the article, the issue of improving the customer transport service quality by technical and technological modernization of railway enterprises was studied. Technical and economic evaluation on justification of measures for the elimination of negative effects of feedback in local elements of interaction of the rail yards is presented for practical use.
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Winiarek, Przemysław, and Aneta Kruk. "Analiza wybranych parametrów chemicznych gleb wzdłuż linii kolejowych." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 26, no. 4 (December 30, 2017): 498–513. http://dx.doi.org/10.22630/pniks.2017.26.4.48.
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The aim of the study was to assess the quality of soils underneath operating railway lines. The lines selected for the examination were outside the reach of external sources of potential pollution. The samples were collected along a plain line section after and before an upgrade work, within the station area and in a railway equipment repair yard. The assessment covered the following types of sections: single-track, double-track, with wooden and concrete sleepers, adjacent to switches subject to lubrication, in the car shunting yard and visibly contaminated areas. The samples were tested for the content of PAH, zinc, copper, lead and PCB. The study did not find evidence of increased levels of the above-listed compounds as compared to the levels found in arable soils located in the vicinity of the line or of their influence on adjacent lands. The content of the examined compounds did not differ depending on the type of line section or its properties. The content of PAH, considered one of the main railway-related pollutants, was sufficiently low to classify the soil along the line and within the station area as unpolluted or slightly polluted.
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Falkowski, Tomasz, Filip Bujakowski, Piotr Ostrowski, and Grzegorz Wierzbicki. "Przydatność kryteriów litogenetycznych w konstrukcji numerycznego modelu krążenia wód podziemnych w strefie krawędziowej wysoczyzny." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 26, no. 4 (December 30, 2017): 514–27. http://dx.doi.org/10.22630/pniks.2017.26.4.49.
Full textAbstract:
The aim of the study was to assess the quality of soils underneath operating railway lines. The lines selected for the examination were outside the reach of external sources of potential pollution. The samples were collected along a plain line section after and before an upgrade work, within the station area and in a railway equipment repair yard. The assessment covered the following types of sections: single-track, double-track, with wooden and concrete sleepers, adjacent to switches subject to lubrication, in the car shunting yard and visibly contaminated areas. The samples were tested for the content of PAH, zinc, copper, lead and PCB. The study did not find evidence of increased levels of the above-listed compounds as compared to the levels found in arable soils located in the vicinity of the line or of their influence on adjacent lands. The content of the examined compounds did not differ depending on the type of line section or its properties. The content of PAH, considered one of the main railway-related pollutants, was sufficiently low to classify the soil along the line and within the station area as unpolluted or slightly polluted.
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Skrickij, Viktor, Eldar Šabanovič, Dachuan Shi, Stefano Ricci, Luca Rizzetto, and Gintautas Bureika. "Visual Measurement System for Wheel–Rail Lateral Position Evaluation." Sensors 21, no. 4 (February 11, 2021): 1297. http://dx.doi.org/10.3390/s21041297.
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Railway infrastructure must meet safety requirements concerning its construction and operation. Track geometry monitoring is one of the most important activities in maintaining the steady technical conditions of rail infrastructure. Commonly, it is performed using complex measurement equipment installed on track-recording coaches. Existing low-cost inertial sensor-based measurement systems provide reliable measurements of track geometry in vertical directions. However, solutions are needed for track geometry parameter measurement in the lateral direction. In this research, the authors developed a visual measurement system for track gauge evaluation. It involves the detection of measurement points and the visual measurement of the distance between them. The accuracy of the visual measurement system was evaluated in the laboratory and showed promising results. The initial field test was performed in the Vilnius railway station yard, driving at low velocity on the straight track section. The results show that the image point selection method developed for selecting the wheel and rail points to measure distance is stable enough for TG measurement. Recommendations for the further improvement of the developed system are presented.
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STRELKOV, Alexander K., Svetlana Yu TEPLYKH, Pavel A. GORSHKALEV, and Ashot M. SARGSYAN. "DESIGN OF WASTE WATER TREATMENT UNIT." Urban construction and architecture 7, no. 1 (March 15, 2017): 52–57. http://dx.doi.org/10.17673/vestnik.2017.01.9.
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Surface run-offs due to snow melting and rainfall gather dust, rubbish, oil-products and other pollutants and flow into nearest water basin that results in pollution of environment and surface water bodies. The article describes a package unit of waste water physical and chemical treatment for enterprises of railway and automobile transport. It also can be used for elevated track of railway sorting yard. The unit consists of degritter, holding tank, floater, granular and sorption filters. The unit was tested in laboratory and pilot conditions. It was put in a evaluation test with standardized test solution and real waste water.
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Arias-Cuevas, O., and Z. Li. "Field investigations into the performance of magnetic track brakes of an electrical multiple unit against slippery tracks. Part 1: Adhesion improvement." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 225, no. 6 (July 25, 2011): 613–36. http://dx.doi.org/10.1177/0954409711401515.
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Some rolling stock designed for conventional and high-speed railway operation has magnetic track brakes (MTBs) to have an additional brake independent of the wheel–rail adhesion to be mostly activated in emergency situations. In recent years, interest has grown in some railways towards the possible use of MTB against slippery tracks. However, there seems to be a lack of knowledge on the major benefits and possible side effects of using MTB to overcome low-adhesion conditions. This hinders the realization of a cost-benefit analysis to look at possible implementation. In order to contribute to a better understanding, field tests have been performed with the permanent MTB of an electrical multiple unit in a stabling yard. Low-adhesion conditions have been created by three types of contamination representative of slippery tracks, i.e. leaves, water, and grease. The entire work has been divided in two parts. In this Part I, emphasis is put on the adhesion recovery, in particular the benefit for subsequent wheel (or train) passages. Baseline tests (i.e. no use of MTB) have also been performed with water and leaves. Additionally, an adhesion improver widely used in the Dutch and British railways has also been tested with leaves to allow for a comparison in effectiveness with MTB under similar operating conditions. In each test, the wheel–rail adhesion conditions along the initially contaminated track have been measured to evaluate the adhesion improvement under the different testing conditions.
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Bagheri, Morteza, F. Frank Saccomanno, and Liping Fu. "Effective placement of dangerous goods cars in rail yard marshaling operation." Canadian Journal of Civil Engineering 37, no. 5 (May 2010): 753–62. http://dx.doi.org/10.1139/l10-015.
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Train derailments are important safety issues, and they become even more critical when dangerous goods (DG) are involved. This paper is concerned with mitigating derailment risk through improved operational strategies, with a specific focus on DG marshalling practices in the train-assembly process. A new modelling framework is proposed to investigate how the position of DG railway cars affects their chances of being involved in a derailment as the train travels over a given track segment. The underlying research problem can be formulated as a linear integer programming technique. However, since solving this formulation is computationally intractable, a heuristic method has been developed based on a genetic algorithm that gives a near-optimum solution. The proposed model is applied to a hypothetical rail corridor to demonstrate how effective marshalling of DG along a train can reduce overall derailment risks.
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Sventekova, Eva, Zdenka Urbancova, and Katarina Holla. "Assessment of the Vulnerability of Selected Key Elements of Rail Transport. Slovak Case Study." Applied Sciences 11, no. 13 (July 2, 2021): 6174. http://dx.doi.org/10.3390/app11136174.
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Increases in means of transport, developed transport networks, and modernization dependent on computer technology not only lead to huge security demands but also require preventive measures and vulnerability assessments of key elements of transport infrastructure. The analyses carried out have shown that, though the importance of transport continues to grow, there is currently no system for assessing the vulnerability of essential elements that are necessary to keep rail transport safe and operational. Taking into account a number of criteria, the team of authors identified key elements of the railway transport infrastructure—bridges, tunnels, the width of the track, and the marshaling yard. The criteria applied included the significance and uniqueness of the element, its technical parameters, the difficulty of repair after possible damage, potential risks related to the location, and the analysis of rail safety based on statistical data and safety reports. The aim of this contribution is to present a multi-level model for assessing the vulnerability of key elements of rail transport infrastructure. The authors proceeded from the hypothesis that the vulnerability of key elements can be assessed using quantitative and qualitative parameters of the individual elements. The added value of the model is the methodological basis for a comprehensive vulnerability assessment system that will allow competent authorities to objectify the process of vulnerability assessment of key elements and to set up appropriate safeguards to enhance rail safety. The proposed model was verified on the Zilina-Vrútky track section, which is considered one of the most important railway junctions in Slovakia.
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Yanovsky, Petro, Victoriia Yanovska, Sergiy Lytvynenko, Halyna Nesterenko, and Larysa Lytvynenko. "Principles of the Feedback Action in Local Elements of Rail Yard Interaction." International Journal of Engineering & Technology 7, no. 4.3 (September 15, 2018): 196. http://dx.doi.org/10.14419/ijet.v7i4.3.19734.
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Achievement of high-quality servicing level of cargo owners should be carried out under unconditionally effective use of rolling stock of railways and technical means. The real transport process should be implemented based on logistic cargo supply chains by types of connections for each shipment. The practice of railway operation shows that there is a significant shortage of train locomotives as a result of which the departure of ready trains at rail yard is often not carried out. In such cases, a feedback effect in local elements of interaction of these stations occurs. Due to delay in departure of trains, sending of already formed trains from rail yards is delayed; furthermore, because of the overflow of rail yard tracks, the sorting process on marshalling humps can be slowed down and delay of prepared trains for dismantling at arrival yard may occur. As a result of feedback action, downtimes of rail cars are increasing and movement of inventories is slowing down. In order to mitigate feedbacks effects in local elements of interaction, the principles of their operation, consideration of which will enable acceleration in passage of the rail car and cargo traffic through the railway network in practical activity, were formulated.
Dissertations / Theses on the topic "Railway yard track"
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Aguiar, Paulo Roberto. "Analise parametrica da estabilidade de plataformas ferroviarias degradadas." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258216.
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Orientador: Cassio Eduardo Lima de PaivaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo
Made available in DSpace on 2018-08-09T09:00:02Z (GMT). No. of bitstreams: 1 Aguiar_PauloRoberto_M.pdf: 2785267 bytes, checksum: 6bde50559dcc0d0d8052701ee543e1b3 (MD5) Previous issue date: 2007
Resumo: O estudo desenvolvido neste trabalho consiste na avaliação da capacidade de suporte do subleito ferroviário, através da determinação do risco à ruptura circular da plataforma, de uma secção transversal de um pátio ferroviário sujeito à carga de um veículo estacionado em uma via lateral, são utilizadas as equações. Para fins de desenvolvimento do presente estudo é utilizado o método de Eisenmann para determinação das tensões atuantes na base do trilho. As tensões atuantes na plataforma são calculadas através das equações de Carothers-Terzaghi. A avaliação do risco à ruptura circular é feita através do programa computacional GEOSLOPE-SLOPE/W versão 6. Após a determinação dos fatores de segurança à ruptura para várias situações analisadas, é feita a análise dos resultados obtidos no sentido de determinar as situações de risco de estabilidade da via à ruptura circular da plataforma
Abstract: This study deals with an evaluation of subgrade capacity by determining the circular rupture stability risk of a slope adjacent to a railway yard track subject the tensions of a loaded gondola car parked in this track. The Eisenmann method is applied for determination of tensions at the railway subgrade and the tensions are calculated by means Carothers-Terzaghi equations. The analysis of circular failure risk is made by means of the computer software Geoslope-Slope/W version 6. After calculating the safety factors for many situations, the results are evaluated to stablish the stability risks of the slope adjacent to the railway track
Mestrado
Transportes
Mestre em Engenharia Civil
Books on the topic "Railway yard track"
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Board, United States National Transportation Safety. Railroad accident report: Derailment of Amtrak passenger train no. 60, the Montrealer, on the Central Vermont Railway near Essex Junction, Vermont, July 7, 1984. Washington, D.C: The Board, 1986.
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Board, United States National Transportation Safety. Railroad accident report: Derailment of Amtrak passenger train no. 60, the Montrealer, on the Central Vermont Railway near Essex Junction, Vermont, July 7, 1984. Washington, D.C: The Board, 1986.
Find full textBook chapters on the topic "Railway yard track"
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Chernov, Andrey, Maria Butakova, Alexander Guda, and Petr Shevchuk. "Development of Intelligent Obstacle Detection System on Railway Tracks for Yard Locomotives Using CNN." In Communications in Computer and Information Science, 33–43. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58462-7_3.
Full textConference papers on the topic "Railway yard track"
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Kerokoski, Olli. "Determination of Longitudinal and Transverse Railway Track Resistance." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36087.
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Several national guidelines set the non-linear horizontal spring values between the railway track and a railway bridge. In Finland that is not the case. Consequently, one of the objectives of the research funded by the Finnish Rail Administration was to determine the spring values both during the elastic phase in the beginning of displacement and during the plastic phase. These values are needed, for example, to calculate the behaviour of an integral bridge-track structure. In autumn 2007 researchers from the Department of Civil Engineering at Tampere University of Technology performed field tests to measure the track resistance at a railway yard in Mellila¨, Finland. The main objectives of the experimental study were 1) to determine the longitudinal track resistance and the load-displacement relation, 2) to compare the measured values to those reported by the International Union of Railways (UIC), and 3) to determine the transverse track resistance and the load-displacement relation. The railway yard had three track test locations, two for longitudinal loading and one for transverse loading. At each location the rails were cut to a length of six to seven metres. During the longitudinal loading the track was loaded with two adjacent hydraulic jacks. Altogether eight longitudinal tests were conducted, three without a vertical load and five with a vertical load. The vertically unloaded track reached the plastic phase due to the axial load. The vertically loaded rails moved axially in their fasteners while the sleepers moved only a little in relation to them. Consequently, the track did not reach the plastic phase. The results of the longitudinal tests were reported as horizontal and vertical displacements and axial rail stresses along the rail at different phases of the axial loading. The results were presented also in tables where initial stage stiffness was presented as an elastic value [kN/m/m] and plastic track resistance in kN/m. The maximum forces per metre affecting the track without a vertical load were 13 to 15 kN/m. The maximum forces per metre affecting the track with a vertical load were 26, 15 and 31 kN/m. During transverse loading the track was loaded horizontally with an excavator bucket. Altogether five loadings with three different arrangements were performed. The loadings clearly caused curvature of the track. The results of the transverse tests were reported as displacements at different locations during different phases of loading.
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Ricci, Alexander, and Bryan Schlake. "Environmental and Economic Analysis of Low Emissions Yard and Industrial Switchers." In 2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/jrc2016-5830.
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As railroads and local industries served by rail seek to reduce emissions and improve fuel efficiency, new technologies are being developed to serve this market. Contrary to the minimal competitive options available over the last several decades, new companies are now emerging with a variety of locomotive designs aimed at low emissions and low horsepower solutions. Some technologies involve alternative fuels (e.g. natural gas, bio-diesel, battery power, etc.), while others incorporate very low horsepower diesel engines (400hp–1000hp) in order to meet the Tier 4 regulations set by the Environmental Protection Agency (EPA). Yet another option available to railroads and local industries is the mobile railcar mover. Typically used within railroad yard limits or on industry tracks, yard and industrial switchers and mobile railcar movers travel short distances, but must be capable of moving large loads. Subject to high forces when moving cars, these technologies must be both resilient (requiring minimal maintenance) and safe (not subject to derailment or loss of control). As the current market for yard and industrial switchers continues to expand, both railroads and local industries served by rail are placing greater emphases on the environmental and economic benefits of the emerging technologies. This paper aims to analyze the current yard and industrial switcher market and draw conclusions based on emissions data and lifecycle costs. Industrial switchers are compared with yard switchers and mobile railcar movers. Although industrial switchers are more limited in horsepower and operational versatility than yard switchers, many of the daily operations between the two are similar. Mobile railcar movers (e.g. Trackmobile® and Rail King®) offer lower initial costs as well as the versatility of both on-track and off-track movement. However, they may require additional maintenance and offer reduced tractive effort compared to locomotive technologies. As the demands on railroad yard and industry operations grow increasingly complex due to environmental regulations and economic demands, these new technologies have the potential to increase competition in the marketplace and offer improved engineering solutions. By developing a hierarchy of key requirements of yard or industry switchers, this paper provides a framework for identifying the best options available to a railroad or local industries. The scope of this paper will include a review of all options available, but will place a greater emphasis on technologies that are commercially available for wide distribution. By sampling and analyzing the current industrial market, much insight can be gained into daily operational requirements and challenges faced by this sector of the industry.
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Yue, Yixiang, and Leishan Zhou. "Dynamic Scheduling Model and Algorithm for Dispatching Trains in High-Speed Railway Passenger Station." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36167.
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Regarding the railway station tracks and train running routes as machines, all trains in this railway station as jobs, dispatching trains in high-speed railway passenger stations can be considered as a special type of Job-Shop Problem (JSP). In this paper, we proposed a multi-machines, multi-jobs JSP model with special constraints for Operation Plan Scheduling Problem (OPSP) in high-speed railway passenger stations, and presented a fast heuristic algorithm based on greedy heuristic. This algorithm first divided all operations into several layers according to the yards attributes and the operation’s urgency level. Then every operation was allotted a feasible time window, each operation was assigned to a specified “machine” sequenced or backward sequenced within the time slot, layer by layer according to its priority. As we recorded and modified the time slots dynamically, the searching space was decreased dramatically. And we take the South Beijing High-speed Railway Station as example and give extensive numerical experiment. Computational results based on real-life instance show that the algorithm has significant merits for large scale problems; can both reduce tardiness and shorten cycle times. The empirical evidence also proved that this algorithm is industrial practicable.
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Arias-Cuevas, Oscar, and Zili Li. "Field Investigations on Rolling Stock Components Designed to Overcome Low Adhesion Related Problems." In 2010 Joint Rail Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/jrc2010-36206.
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The tangential force that a braking or tractive wheel can exert on a rail is limited by the friction coefficient available at the surfaces in contact for a given normal load. In clean steel-on-steel contacts the friction coefficient is known to be higher than the adhesion requirements of the majority of the existent rolling stock. However, in the presence of contamination (e.g. leaves, water, grease, and rust) the friction level can decrease to values far below those required in normal traction and braking operations. In particular, fallen leaves have been identified by many railways to cause considerable low adhesion problems in autumn. Despite the available countermeasures the adhesion problems still seem to persist in the majority of the affected networks. This could to a large extent be due to the lack of fundamental understanding on the effectiveness of the countermeasures used under different operating conditions. In this paper, the effectiveness of two rolling stock components, namely locomotive sanders and permanent magnetic track brakes, in leaf contaminated contacts is investigated by means of full-scale tests in a stabling yard. An electrical locomotive has been used to asses the performance of the sanders, whereas the tests with permanent magnetic track brakes have been carried out with an electrical multiple unit.
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Liu, Qingjie, Xiaoyan Lei, Jerry G. Rose, and Macy L. Purcell. "Pressure Measurements at the Tie-Ballast Interface in Railroad Tracks Using Granular Material Pressure Cells." In 2017 Joint Rail Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/jrc2017-2219.
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It has been desirable for years to develop a reasonably simple, direct, accurate, and reliable method to measure pressure distributions in railroad trackbeds, especially the pressure magnitudes and distributions at the tie-ballast interface. In this study, specially-designed granular material pressure cells were used to measure pressure magnitudes and distributions. The cells were placed directly under the rail-tie intersection at the tie-ballast interface. Initially, a MTS test machine was used to conduct a series of laboratory tie-ballast box tests for a wide variation of ballast types and loading configurations. The adequacy of the cells for in-track measurements was verified with a series of very controlled laboratory tests and measurements using simulated trackbed sections and loading conditions. Excellent correlations were obtained comparing applied machine pressures and measured transferred cell pressures indicating that this type of pressure cell is suitable for in-track tie-ballast pressure measurements. This preliminary testing sequence is briefly described. A series of in-track wood tie tests were conducted on a yard lead track on a shortline railroad, Transkentucky Transportation, to optimize the in-track installation procedures and to obtain pressure measurements using repeated passes of low-speed locomotives and cars. A normalized pressure distribution was obtained by using metal shims when necessary to fill voids between the ties and pressure cells to insure continuous tie-ballast contact. This test sequence is presented and described. Additional in-track tests were conducted on Norfolk Southern Railway’s heavy tonnage concrete tie Class 4 mainline with train speeds of up to 64 km/h. Data was obtained for numerous passages of revenue trains over a period of several months for variable weights and types of locomotives and freight cars at typical train speeds. The average pressure intensities at the tie-ballast interface were acquired for six consecutive ties comprising a complete revolution of the wheels. This data is presented and the results discussed.