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Journal articles on the topic 'Information management in railways'
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Ranjan, Rajeev, Prasenjit Chatterjee, and Shankar Chakraborty. "Performance evaluation of Indian Railway zones using DEMATEL and VIKOR methods." Benchmarking: An International Journal 23, no. 1 (February 1, 2016): 78–95. http://dx.doi.org/10.1108/bij-09-2014-0088.
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Purpose – The purpose of this paper is to propose the application of a decision-making tool for performance evaluation of Indian Railway zones. It basically seeks to analyze the effects of various evaluation criteria on the performance of Indian Railways using a combined multi-criteria decision-making approach which employs decision-making trial and evaluation laboratory (DEMATEL) and “VIse Kriterijumska Optimizacija kompromisno Resenje” (VIKOR) methods. Design/methodology/approach – The performance of 16 Indian Railway zones is first evaluated using DEMATEL method which addresses the inter-relationships between different criteria with the aid of a relationship structure. The VIKOR method which is a compromise ranking approach is then adopted to rank those candidate railway zones. Pareto analysis is also carried out to identify the benchmark railway zones for the under/poor performers so as to improve their operational excellence. Findings – A numerical example from Indian Railways is illustrated and solved for better understanding of the integrated decision-making tool in which the relevant information for the considered railway zones with respect to different evaluation criteria are collected from various websites and Indian Railways annual statistical report. Western and North-Eastern zones, respectively, take the first and the last positions in the derived ranking list. The relevance of selecting different performance indices/evaluation criteria is also discussed. Practical implications – The application of this integrated methodology would serve as a systematic approach for measurement of the aggregate operational performance of Indian Railway zones so as to gain valuable academic and practical insights. It is also expected to provide an insightful guidance to the railway administrators in taking valuable strategic decisions in promoting the service of Indian Railways. Originality/value – The integrated DEMATEL-VIKOR method is conceptually simple and easily comprehensible which can consider numerous attributes simultaneously. This paper enables the readers to gain some valuable inputs from a managerial perspective for Indian Railways to formulate strategies for its zones to foster better performance.
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Branković, Nedžad, Aida Kalem, and Adisa Medić. "Development of mobile communication systems for high-speed railway." Science, Engineering and Technology 1, no. 1 (April 30, 2021): 29–34. http://dx.doi.org/10.54327/set2021/v1.i1.2.
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Development of high-speed railways set up challenges for new communication technologies. With the increase in speed, new requirements for communication systems have emerged that HSR requires greater reliability, capacity and shorter response time for efficient and safe operations. Mobile communication systems are crucial for the competitiveness of the railway industry and therefore have become one of the priorities addressed by the participants in the railway system to take advantage of technological opportunities to improve operational processes and the quality of provided transport services. The European Rail Traffic Management System (ERTMS) uses the Global System for Mobile Communications for Railways (GSM-R) for voice and data communication to communicate between trains and control centers. The International Railway Union is exploring new ways of communicating for high-speed railways because as speed increases this system becomes unreliable in information transmission. This paperwork presents an analysis of the evolution of communications on European railways since the usage of GSM-R. In addition, an overview of the various alternative solutions proposed during the time (LTE-R, Future Railway Mobile Communication System) as possible successors to GSM-R technology is given.
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Sukhov, Philipp, Vladimir Popov, and Viktor Filippov. "Traffic safety management based on integrated assessment of safety level." MATEC Web of Conferences 239 (2018): 02003. http://dx.doi.org/10.1051/matecconf/201823902003.
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The volumes of freight and passenger traffic on the railways of the Russian Federation are increasing every year. Along with the increase in the transportation work, the likelihood of occurrence of undesirable incidents in railway transport increases. The assessment of the level of comprehensive (integrated) safety is an important scientific and technical problem in the current conditions of the functioning of railway transport. The methods used to assess the level of safety do not always meet the requirements of complexity in view of comparison of various-scale violations of traffic safety (crash, accident, faulty operation). The paper proposes a mathematical method for assessing the level of integrated safety in railway transport and calculation of the safety index of train traffic. For the calculation, statistical data for a certain period are used. These data summarized in a specialized dictionary of traffic safety violations, the mathematical treatment of which provides information on the level of integrated safety in railway transport in the Russian Federation. The proposed index allows determining the effectiveness of management decisions in the field of train traffic safety, as well as assessing the effectiveness of implementing certain innovations in the field of traffic safety. It is possible to use data on integrated traffic safety to reduce insurance premiums for cargo insurance on railways.
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Zhang, Yan Chun, Qi Wang, and Meng Jun Wang. "On General Scheme of Railway Bureau Emergency Command System." Advanced Materials Research 459 (January 2012): 523–28. http://dx.doi.org/10.4028/www.scientific.net/amr.459.523.
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In order to prevent and handle all kinds of railway emergencies efficiently and improve emergency management efficiency and capability of Railway Bureau, it is of great importance to construct the emergency command system which takes geographic information system as core and is visualized, intelligent and networking. Based on the reality of railway emergency management, the three level structure of emergency command system, which takes the Railway Bureau as core and consists of the Ministry of Railways, the Railway Bureau and Divisions, is proposed. The overall frame structure of the system which consists of user layer, interface layer, application service layer and data layer is designed and the function of the system is analyzed. Some key technologies namely geographic information service platform technology, information resources integration technology and decision support techniques are introduced.
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Mnjama, Nathan M. "Records Management at the Kenya Railways Corporation." Information Development 10, no. 3 (September 1994): 208–14. http://dx.doi.org/10.1177/026666699401000313.
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Pastukhov, S. S. "DEVELOPMENT OF BUSINESS INTELLIGENCE IN TRANSPORT MANAGEMENT." World of Transport and Transportation 17, no. 5 (June 7, 2020): 164–84. http://dx.doi.org/10.30932/1992-3252-2019-17-5-164-184.
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Development of business intelligence is an important area of efficiency growth when solving urgent issues of improving transport management processes. The business intelligence is a source of objective and clear information necessary for management to make decisions. This is particularly pertinent when business intelligence is applied in railway transport for comparative analysis of contribution of regional and local divisions and units to the overall activity of railway infrastructure or operation company. In Russia, in the case of JSC Russian Railways there is a great need for assessment of the efficiency of regional corporate management centers whose responsibility is to coordinate activity within theboundaries of railways which are branches of the company.The objective of the article is to present new methodological and practical aspects of designing and development of business intelligence tools for the process of economic assessment of share contribution of each railway (considered as a set of structural units within the regional corporate management center) to the results of the activity of JSC Russian Railways.The research while developing and justifying the proposed methodological apparatus used tools for system analysis, methods of decomposition and synthesis, methodology of economic and mathematical modelling, fundamentals of information design theory, as well as methods of factor analysis. As a result, within the framework of improving the business analytics apparatus for complex economic processes as applied to transport management systems, the paper suggests a methodological apparatus for development of multi-stage factor analysis (MFA) based on application of the hierarchical construction principle and the provisions of the root cause analysis (RCA) methodology, comprising integrated mechanisms for visualizing the results of analytical work by shaping chains of information panels, combined into tree structures, according to the principles of building mind maps.The suggested methodological apparatus approved by the considered case may also be applied to a widerange of similar problems in other modes of transport, multimode and combined transportation.
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Dontsov, I. E. "Storage of Geometric Data." World of Transport and Transportation 17, no. 2 (September 13, 2019): 190–96. http://dx.doi.org/10.30932/1992-3252-2019-17-2-190-196.
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The implementation of railway digitalization programs is associated with development of information management systems and telecommunications, with enhancement of integrated automation of management and control systems.A new type of information system which is geographic information systems (GIS) is of interest as it is intended for decision-making in transport management and control systems. Besides, varioustraining simulators, that simulate movement of various objects and control procedures, have been widely implemented in civil aviation, on railways and in other modes of transport. The development of simulators is associated with development of visualization systems based on computer software.Respective operations are based on spatially distributed geometric information. The article depicts basic approaches to core methods of its storage and transmission via information networks.
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Kurenkov, Petr, Olga Efimova, Nadezhda Kapustina, Diana Kakhrimanova, and Anastasia Safronova. "Risk management using information technologies of the Russian railways holding." MATEC Web of Conferences 334 (2021): 02015. http://dx.doi.org/10.1051/matecconf/202133402015.
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The increased competition between modes of transport, the growing uncertainty of the business environment, the diversity of goals of the business units of the holding “Russian Railways” and the participants of the transport market inevitably increase the level of risks that can threaten the efficient development of the company. The development of information technologies is the base of risk management and higher competitiveness. The growth in uncertainty and speed of changes in the business environment leads to the necessity of implementation of digital technologies for risk management, influencing the add value of transportation-logistic services.
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Symes, Colin. "Checks and Balances: The Semiotics of Ticketing on Victorian Railways, During the 1930s and 1940s." Space and Culture 21, no. 4 (January 1, 2018): 469–81. http://dx.doi.org/10.1177/1206331217749762.
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As well as transforming the way terrestrial space was traversed, railways spearheaded texts that enabled passenger traversal of such spaces to be regulated and monitored. Among the most important of these texts was the railway ticket, which as a pre-electronic information storage device, was capable of encoding through semiotic inscription, details of a passenger’s spatial entitlements, both on and off a train. Yet curiously these facets of the ticket have not hitherto been the subjects of analysis. Through analysing the railway ticketing system of Australia’s Victorian Railways during the 1930s and 1940s and the manuals that regulated the choreography of ticket inspection and the associated performances of passengers, this article redresses this oversight. Using Foucaultian and semiotic concepts, it argues that the railways tickets of the past, like their contemporary counterparts, provide convenient and portable mechanisms for gate-keeping and calibrating mobile populations.
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Sirina, N. F., and O. A. Sisina. "Modeling of information exchange in case of emergencies during railway transport process." Herald of the Ural State University of Railway Transport, no. 1 (2020): 58–68. http://dx.doi.org/10.20291/2079-0392-2020-1-58-68.
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Emergencies in railway transport process cause huge losses of wealth and human lives. The longer time is taken to attract forces and facilities to eliminate emergencies, the greater the losses will be. The time parameters of attraction are determined by the interval from the moment of an emergency and the beginning of transmission of information about it to the moment of communication of this information to all the officials of structures required to attract. Russian Railways JSC has developed regulatory documents on information exchange for transmission of emergency information. Based on the results of the regulatory documents analysis, a scheme of information exchange has been developed for the management regions of the Sverdlovsk Railway in case of emergencies during the transport process. The principles of structural units involvement in elimination of an emergency in case of its expansion are described.
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Gao, Li, and Huandi Dou. "Inventory Management of Railway Logistics Park Based on Artificial Neural Network." Journal Européen des Systèmes Automatisés 53, no. 5 (November 15, 2020): 715–23. http://dx.doi.org/10.18280/jesa.530514.
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In recent years, China has stepped up its support to the optimization and development of railways. Meanwhile, the development of modern information technology (IT) has enhanced the economic advantages of railway logistics. To intelligently manage the inventory of railway logistics park (RLP), this paper integrates artificial neural network (ANN) into RLP inventory management. Firstly, the functional demand of RLP inventory management was analyzed comprehensively, and the main factors affecting the inventory demand were divided into different categories. Then, the authors formulated the framework of intelligent inventory management for RLP, and put forward the strategy of continuous periodic inventory monitoring. Finally, a RLP inventory prediction model was constructed based on optimized genetic algorithm (GA) and backpropagation neutral network (BPNN), and proved effective through experiments. The research results provide reference for the application of ANN in inventory management and prediction in other logistics fields.
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Collins, L. "Slow train to concord [railways]." Information Professional 2, no. 1 (February 1, 2005): 10–13. http://dx.doi.org/10.1049/inp:20050101.
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Minea, Marius, Cătălin Marian Dumitrescu, and Mihai Dima. "Robotic Railway Multi-Sensing and Profiling Unit Based on Artificial Intelligence and Data Fusion." Sensors 21, no. 20 (October 16, 2021): 6876. http://dx.doi.org/10.3390/s21206876.
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This article presents the research and results of field tests and simulations regarding an autonomous/robotic railway vehicle, designed to collect multiple information on safety and functional parameters of a surface railway and/or subway section, based on data fusion and machine learning. The maintenance of complex railways, or subway networks with long operating times is a difficult process and intensive resources consuming. The proposed solution delivers human operators in the fault management service and operations from the time-consuming task of railway inspection and measurements, by integrating several sensors and collecting most relevant information on railway, associated automation equipment and infrastructure on a single intelligent platform. The robotic cart integrates autonomy, remote sensing, artificial intelligence, and ability to detect even infrastructural anomalies. Moreover, via a future process of complex statistical filtering of data, it is foreseen that the solution might be configured to offer second-order information about infrastructure changes, such as land sliding, water flooding, or similar modifications. Results of simulations and field tests show the ability of the platform to integrate several fault management operations in a single process, useful in increasing railway capacity and resilience.
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Zheleznov, Maxim. "Development of the information modeling (BIM) conceptusing Big Data technologies for the implementation of the life cycle management system for capital construction of transport infrastructure." E3S Web of Conferences 281 (2021): 04010. http://dx.doi.org/10.1051/e3sconf/202128104010.
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The development of a scientific concept of information modeling in the tasks of managing the capital construction objects’ life cycle is the key to the successful transition of Russian Railways Holding to digital methods of managing and controlling transport infrastructure. The result of the presented complex project implementation will be the scientific basis for the life cycle information modeling concept and information modeling methodology implementation at its stages. Taking into account the rapid increase in the volume of construction information, the development of automatic systems for collecting, processing and storing information, it is proposed to apply Big Data technologies. The project results are planned to be used as a basis for the pilot information modeling technologies’ development at the stages of the railway infrastructure construction objects’ life cycle.
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Srivastava, Shirish C., Sharat S. Mathur, and Thompson SH Teo. "Modernization of Passenger Reservation System: Indian Railways’ Dilemma." Journal of Information Technology 22, no. 4 (December 2007): 432–39. http://dx.doi.org/10.1057/palgrave.jit.2000112.
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This teaching case discusses the challenges being faced by the technology managers at Indian Railways (IR) in the current scenario of a resurgent national economy coupled with increasing customer expectations. In the face of growing competition from road and low-cost airlines, to retain its customers, IR has responded by changing its business rules. The Railway Ministry expects a rapid response from Centre for Railway Information Systems (CRIS) to incorporate all these changes in the passenger reservation system (PRS). The old PRS, which is time-tested and reliable, and has been serving the customers’ needs for nearly two decades, is now proving to be relatively inflexible to match the rapidly changing business requirements. Although the current scenario of a constant need to change the programming logic of PRS has been making maintenance tougher for CRIS officials, they have realized that PRS is a time-tested, proven, and reliable technology. Though they would be happy to replace the old PRS with a new state-of-art system that would provide them greater maintenance flexibility, the repercussions associated with possible failure of the new system are far too serious. The case exhibits the current dilemma being faced by the head of CRIS, the umbrella agency for information technology (IT) implementation in IR: whether IR should continue using the old PRS technology with its inherent shortcomings, or should it take the risk and go in for a wholesale replacement with a new state-of-art technology which would provide greater maintenance flexibility?
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Patwardhan, Amit, Adithya Thaduri, and Ramin Karim. "Distributed Ledger for Cybersecurity: Issues and Challenges in Railways." Sustainability 13, no. 18 (September 12, 2021): 10176. http://dx.doi.org/10.3390/su131810176.
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The railway is a complex technical system of systems in a multi-stakeholder environment. The implementation of digital technologies is essential for achieving operational excellence and addressing stakeholders’ needs and requirements in relation to the railways. Digitalization is highly dependent on an appropriate digital infrastructure provided through proper information logistics, whereas cybersecurity is critical for the overall security and safety of the railway systems. However, it is important to understand the various issues and challenges presented by governance, business, and technical requirements. Hence, this paper is the first link in the chain to explore, understand, and address such requirements. The purpose of this paper is to identify aspects of distributed ledgers and to provide a taxonomy of issues and challenges to develop a secure and resilient data sharing framework for railway stakeholders.
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Sanyal, Shouvik, Alam Ahmad, and Hafiz Akram. "An Analysis of Performance of Indian Railways." International Journal of Logistics Systems and Management 1, no. 1 (2021): 1. http://dx.doi.org/10.1504/ijlsm.2021.10043738.
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Akram, Hafiz Wasim, Alam Ahmad, and Shouvik Sanyal. "An analysis of performance of Indian railways." International Journal of Logistics Systems and Management 40, no. 3 (2021): 287. http://dx.doi.org/10.1504/ijlsm.2021.120301.
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Sang, Kun, and Silvia E. Piovan. "The application of GIS in railway heritage management: the case of Yunnan-Vietnam Railway." Proceedings of the ICA 2 (July 10, 2019): 1–7. http://dx.doi.org/10.5194/ica-proc-2-110-2019.
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<p><strong>Abstract.</strong> Railways were a key mode of transporting goods and people for industrial and urban development in the late modern age. Their special part in economic growth comes with their role in the development of cultural heritage along their pathways. However, because of competing urban construction, many railway heritages are in danger, such as the Yunnan-Vietnam Railway (YVR) in China, an important international narrow-gauge railway built in 1901, acknowledged as a railway heritage in 2018. As a typical linear heritage, the railway integrates both the natural and cultural landscapes, related to the large spatial extent and complex composition of single heritage elements. Geographic Information Systems (GIS) offer a great support in the investigation, assessment, and management of railway heritage. In this research, the huge cultural heritage related to the YVR was studied using a combined geo-historical and GIS approach. This paper aims to 1) give a brief review of the current status of the application of GIS on linear railway heritages studies, including heritage resources surveys, spatial analysis, thematic mapping and public service, 2) introduce the case study of the Yunnan-Vietnam Railway, and 3) present a geodatabase design for the Yunnan-Vietnam Railway heritage management.</p>
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Libati, Hastings M., Captain F. Kanungwe, Fines Miyoba, and Ndiwa Mutemwa. "Development of a Real Time Trains Monitoring System." Zambia ICT Journal 1, no. 1 (December 11, 2017): 25–29. http://dx.doi.org/10.33260/zictjournal.v1i1.15.
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With the evolution of technology that has occurred in digital systems, new services have appeared that can be applied in railways. Radio communications play an important role in the management of, exploration and maintenance of railway transports. Due to the importance of efficient service delivery and security in railways, there is need to integrate the use of the Global System for Mobile communication and global positioning systems. Transportation is a large and important part of the economy of any country. Railway transportation is one of the main transportation systems worldwide. To this effect, we should have a good and strong monitoring system that can locate a train at every instant. In this research, a proposal has been made for the implementation of a Global Positioning System (GPS) and global system for mobile communication (GSM) based train monitoring system on Tanzania Zambia Railway Authority (TAZARA) railway network that will enable controllers locate their trains at every instant. The GPS-GSM/GPRS (General Packet Radio System) module will be incorporated in the system. A GSM/GPRS module will transmit the location information to a web server. Every track and locomotive will be assigned a unique number for identification. The information of the train location will be continuously updated when the train is moving and the users will be accessing the information via the web. The updated information will be stored in the web server. Clients will request for particular train status and a designed web application will show the status in a Google map. An alternative radio voice communication system will be incorporated in the locomotives in case of failure on the monitoring system. This implementation will greatly improve service delivery to the company.
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Leso, Martin. "ITS ON RAILWAY." Acta Polytechnica CTU Proceedings 11 (August 28, 2017): 39. http://dx.doi.org/10.14311/app.2017.11.0039.
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Development of technology management and security, transmission and information systems allows the concept of process management and security of railways and organizing the operation of a new, as yet non-phase in a non-traditional way. Requirements for higher efficiency, accuracy and flexibility of the attractiveness of rail transport Connection in the integrated transport systems are a challenge for the railways. These requirements can be solved just by changing the concept and technology of the presented here as an ITS-R.
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Soskov, A. "BIOLOGICAL RESEARCH AS A BASIS FOR ENVIRONMENTAL MONITORING OF THE IMPACT OF RAIL TRANSPORT ON ENVIRONMENTAL QUALITY." National Association of Scientists 3, no. 72 (November 22, 2021): 10–11. http://dx.doi.org/10.31618/nas.2413-5291.2021.3.72.487.
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Environmental monitoring (EM) is one of the components of the environmental management system on Russian Railways. It consists in obtaining analytical information about the composition and properties of pollution by industrial facilities, comparing it with established standards and transferring this information to a database for management decision-making.[1]
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Bubnova, Galina V., Olga V. Efimova, Irina V. Karapetyants, and Petr V. Kurenkov. "Information Technologies for Risk Management of Transportation – Logistics Branch of the “Russian Railways”." MATEC Web of Conferences 235 (2018): 00034. http://dx.doi.org/10.1051/matecconf/201823500034.
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The increased competition between modes of transport, the growing uncertainty of the business environment, the diversity of goals of the business units of the holding “Russian Railways” and the participants of the transport market inevitably increase the level of risks that can threaten the efficient development of the company. The development of information technologies is the base of risk management and higher competitiveness. The growth in uncertainty and speed of changes in the business environment leads to the necessity of implementation of digital technologies for risk management, influencing the added value of transportation-logistic services.
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Pultyakov, Andrey Vladimirovich, Roman Victorovich Likhota, and Vladimir Alexandrovich Alekseenko. "Incident management in system of technical operation of microprocessor devices of railway automation and telemechanics." Transport of the Urals, no. 1 (2020): 43–47. http://dx.doi.org/10.20291/1815-9400-2020-1-43-47.
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The paper discusses the issues of incident management at technical operation of microprocessor systems of railway automation and telemechanics on the railway network of the JSC Russian Railways. The widely used microprocessor interlocking centralization of switches and signals (MPI) EBILock 950, the development of a joint Russian-Swedish company Bombardier Transportation (Signal), is considered as an object of the research. The analysis of algorithms and patterns of interaction between the operating staff of operating enterprises and specialists of service centres revealed a number of shortcomings in the system of the MPI maintenance and repair organization. As a result, the authors have proposed an alternative scheme for organizing the technical operation of microprocessor systems based on the incident management system implemented as a web application. This application makes it possible to monitor the quality and timing of service operations, accumulate information on methods for eliminating complex non-standard failures and automate the processing of requests by service centres.
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Srivastava, Shirish C., Sharat S. Mathur, and Thompson SH Teo. "Competing Technology Options and Stakeholder Interests for Tracking Freight Railcars in Indian Railways." Journal of Information Technology 24, no. 4 (December 2009): 392–400. http://dx.doi.org/10.1057/jit.2009.9.
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This teaching case examines the implementation of a new technology for tracking individual freight railcars (wagons) by Indian Railways. After exploring multiple ‘technological options,’ the Indian Railways decided to undertake a pilot project based on time-tested Automatic Equipment Identification system using Radio Frequency Identification (RFID) technology. However, a number of other technological options are now available, which include EPC Gen2-based RFID systems, Global Positioning System solutions, Optical Character Recognition (OCR)-based systems, and manual hand-held data collection devices integrated with the current Freight Operations System. Each of these systems has its own advantages and limitations. Although Indian Railways officials are going ahead with the pilot project, they are uncertain as to the appropriate technological choice, given the wide range of available technology options. Further, they are faced with competing interests from different stakeholder groups (departments), who favor different technologies.
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Edwards, Roy. "Conceptualising cost: The analysis of management information on Britain's railways, c.1935–56." Contemporary British History 13, no. 3 (September 1999): 72–81. http://dx.doi.org/10.1080/13619469908581551.
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Narayanaswami, Sundaravalli, and Lakshya Saini. "Operational Policies Based on Fare-Box Revenue Management of Indian Railways." International Journal of Logistics Systems and Management 1, no. 1 (2020): 1. http://dx.doi.org/10.1504/ijlsm.2020.10029938.
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Пилипчук, О. Я. "Ecological activity on a raiway transport: her essense, actual tasks, place and role in the national ecological policy of Ukraine." ВІСНИК СХІДНОУКРАЇНСЬКОГО НАЦІОНАЛЬНОГО УНІВЕРСИТЕТУ імені Володимира Даля, no. 3(259) (February 18, 2020): 48–53. http://dx.doi.org/10.33216/1998-7927-2020-259-3-48-53.
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In the article ecological activity is examined on a railway transport. Enterprises of railway transport are the substantial sources of contamination of environment. The problem of decline of their noci-influence on an environment must decide by means of approach of the systems, including эколого-экономический. Researches of the эколого-экономических systems on a railway transport began to be conducted only lately. System researches of the informative providing of the эколого-экономического monitoring are practically absent on a railway transport. It is necessary to confess that nature protection work on the railways of Ukraine presently remains the the least automated type of activity. Most operations of treatment of эколого-экономической information come true by hand, and introduction of the specialized computer programs carries episodic character.
The aim of ecological activity on a railway transport is development of scientific and practical bases of analysis of the systems of эколого-экономического risk of enterprises of railway transport and creation of the informative providing of management nature protection activity for railways.
On the one hand, such a structure should bring together relevant environmentalists, and on the other hand, cover the main management of divisions and enterprises of the industry by adding to theirjob descriptions of additional functions, duties, rights and responsibilities for the practical implementation of environmental activities. This structure is called the "Department of Traffic Safety and Ecology".
Currently, quite effective methods of wastewater treatment have been developed, as well as exhaust gases from diesel engines and various types of boilers. After appropriate research and development, they can be used in transport. That is why the primary task of environmental protection is wide implementation on the networkrailways of special treatment facilities and structures that will minimize environmental pollution. For example, the development of structures for the purification of exhaust gases from locomotives and boilers should begin today.
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Garramone, M., E. Tonelli, and M. Scaioni. "A MULTI-SCALE BIM/GIS FRAMEWORK FOR RAILWAYS ASSET MANAGEMENT." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVI-5/W1-2022 (February 3, 2022): 95–102. http://dx.doi.org/10.5194/isprs-archives-xlvi-5-w1-2022-95-2022.
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Abstract. Climate change and urban transformations raise new challenges for decision-makers. The United Nations Sustainable Development Goals and The European Green Deal aim for a sustainable economy by reducing emissions of greenhouse gases. An essential task for reaching this result is to minimize transport emissions and their negative impacts on the environment and the human health. Rail is the future of sustainable transport system, and it can be part of the solution in achieving the decarbonisation target. In addition, even more people are using the train and the improvement of the service offered is an essential aspect to fulfil a greater demand for rail transport. More than five million people daily take the train in Italy, and this number is growing over time. It is demonstrated that more investment in rail infrastructure means a greater number of users, and this is even more true when considering the regional rail transport network. This ongoing research aims to test the potential of a Building Information Modelling (BIM) and Geographic Information Systems (GIS) integrated system employed to manage this type of existing infrastructure. A methodology was developed and partly tested on a case study. The purpose is the construction of a system that can be used across different phases of the process: linking the data resulting from BIM and GIS makes possible the development of a federated virtual model used as a single source of truth for project development and asset management.
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Ali, Hafizhuddin. "The Strategic Implementation Asset Management System Basis ISO 55000: A Case Study On Indonesian Railways Company." Journal of Business Management Review 2, no. 3 (March 28, 2021): 226–44. http://dx.doi.org/10.47153/jbmr23.1022021.
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The purpose of this study is to investigate the implementation asset management system basis on ISO 55000. State-owned companies (SOE’s) in railways industry has a big asset across Sumatra, Java and Sulawesi Island. Railways SOE’s have a vision of becoming the best railroad service provider that focuses on customer service and meets stakeholder expectations. To relize the vision, Implementing ISO 55000 as asset management standards in corporation is important accordance to the vision in and mandatory of the Ministry of SOEs as stakeholders in managing strategic assets that are considered effective and efficient. In asset management, ISO 55000 Series is the international accepted standard which implemented in across industry. The purpose of this study is to determine the level of maturity in the existing asset management system against ISO 55000 and suggest improvements to the asset management system to achieve the certification of ISO 55000-based asset management. The method used is qualitative methods in case studies.The data from this study from deep interview by top managerial on Railways SOE’s. The analysis shown there is some clause whose level of maturity is doesn’t achieved competent level. Which raises a gap in the existing asset management system compared to ISO 55000 standards. One of these objects is the subject group Support, Context of Organization, and Performance Evaluation in ISO 55000 context and Risk & Review, Life Cycle Delivery, Asset Information, and Organization & People in the AM landscape developing level of maturity. As a result, an improvement in 2 aspects of asset management is recommended such as improvement on the basis of the asset management system and improvement on key performance indicators at Indonesia railways company.
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Hilmola, Olli Pekka. "Revenue vs. technical efficiency in railways." International Journal of Value Chain Management 4, no. 4 (2010): 305. http://dx.doi.org/10.1504/ijvcm.2010.036991.
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Wonglakorn, Nattiya, Vatanavongs Ratanavaraha, Ampol Karoonsoontawong, and Sajjakaj Jomnonkwao. "Exploring Passenger Loyalty and Related Factors for Urban Railways in Thailand." Sustainability 13, no. 10 (May 14, 2021): 5517. http://dx.doi.org/10.3390/su13105517.
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The research investigates the relationships among indicators related to the loyalty of urban railways passenger in Thailand at three routes, which consisted of BTS Sky train, MRT, and Airport Rail Link. The research instrument was 600 questionnaires, and the purpose was to study the indicators that affected perceived service quality and passenger loyalty by using structural equation modeling. The analysis of influence information that affects passenger loyalty revealed that trust, satisfaction, appreciation, cost of service changing, and relationships have an effect on passenger loyalty, statistically significant at 0.01. The satisfied variable was an important variable that affected passenger loyalty and was directly influenced by trust, appreciation, and perceived service quality. The perceived service quality was measured using 36 indicators and grouped into five complement groups, which were station, news, services, staffs, and vehicle, respectively. The research finding was that the cooperation concern with urban railway service can apply the result to the marketing development strategy to be a sustainable method of standardized service and urban railways system improvement.
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Chen, Yu, Guangming Zhu, and Yuandi Wang. "Effect of High-Speed Railways on City Industrial Sewage Discharge." Water 13, no. 20 (October 15, 2021): 2893. http://dx.doi.org/10.3390/w13202893.
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Industrial wastewaters threatening the sustainability of society have increasingly become a key social issue across the globe. Consequently, countermeasures have been suggested across a broad range of research fields and policy cycles in both industrialized and industrializing countries. Thus, identifying factors that drive reductions in industrial wastewater discharge is a key task in the water research and policymaking fields. In contrast to previous studies that have focused on reducing industrial wastewater discharge through techniques, policy, management, and other tools, the aim of this study was to investigate the effect of transport infrastructure development, particularly high-speed railways (HSR), on industrial sewage discharge. Given the rapid development of high-speed railways in China and the country’s severe water pollution, China was our research context, and our sample was 298 prefecture-level Chinese cities during the period 1999–2018. The empirical results show that cities with high-speed railways have greater reductions in industrial wastewaters, and that these effects are weakened in cities with a more developed economy and information environment. The results are consistent when using different methods to test their robustness, such as time-varying difference-in-difference (DID), instrumental variables, and placebo tests. These findings offer useful guidance for practitioners and policymakers in the management of water resources and the development of transport infrastructure in cities. These results contribute to the literature in the field of water management and to the assessment of the broader effect of high-speed railways.
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Derigs, Ulrich, Dominik Malcherek, and Simon Schäfer. "Supporting strategic crew management at passenger railways—model, method and system." Public Transport 2, no. 4 (November 2010): 307–34. http://dx.doi.org/10.1007/s12469-010-0034-5.
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Chen, Yu, Yuandi Wang, and Shan Chen. "Are Chinese Executives Rewarded or Penalized by the Operation of High-Speed Railways?" Sustainability 13, no. 21 (October 26, 2021): 11797. http://dx.doi.org/10.3390/su132111797.
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Emerging transportation infrastructure (e.g., HSR) is considered to be an important influencing factor of executive compensation. Moreover, information asymmetry is a contextual factor that cannot be ignored in the above relationship. Based on signal theory, this study used the group data from 2371 Chinese-listed companies between 1999 and 2018 as the research object. This study regarded the operation of HSR as an exogenous shock, using the time-varying difference-in-difference (DID) method to test whether discrepancies exist in the influence of HSR on executive compensation in different contexts. The results show that the operation of HSR positively affects the executive compensation of enterprises in cities along the line. In addition, compared with state-owned enterprises, the impact of a high-speed railway on executive compensation is particularly significant in private enterprises. Furthermore, compared with well-known enterprises, the impact of high-speed railways on executive compensation is particularly significant in enterprises with low visibility. This study reduced the endogeneity problem and made the results more reliable by treating HSR operation as an exogenous variable. The research conclusions are expected to provide a theoretical basis and management implications for companies in cities along high-speed railways to improve their salary system.
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Haines, Fiona. "Regulation and Risk: Occupational Health and Safety on the Railways." Journal of Contingencies and Crisis Management 12, no. 1 (March 2004): 44–46. http://dx.doi.org/10.1111/j.0966-0879.2004.01201005_5.x.
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Palitsyn, A. V. "Use of hardware and software complexes (simulators) in practical training of trainees." Transport Technician: Education and Practice 2, no. 3 (September 14, 2021): 291–95. http://dx.doi.org/10.46684/10.46684/2687-1033.2021.3.291-295.
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Educational activity in the form of practical training provides for the demonstration of practical skills, the implementation, modeling by students of certain types of work to solve practical problems related to future professional activities in conditions close to real production.Practical training in preparation for professional activity has become an integral part of the educational process and the use of simulator training makes a significant contribution to this concept, given the fact that, under the conditions of transport security, it is not always possible for students to access real production facilities. Information technologies bring additional opportunities to the educational process in the development of professional competencies. The use of training complexes is becoming widespread in the railway industry in the development of educational programs of secondary vocational education and training of qualified personnel.In accordance with the decisions of the Program of Interaction between JSC "Russian Railways" and University Complexes of Railway Transport until 2025, training of qualified specialists ofJSC "Russian Railways" in the future of the program for the development of structural divisions and the development of the material and technical base of universities, the laboratory on specialty 23.02.01 Organization of transportation and management of transport (by type), which is a hardware and software complex "Train district dispatcher / duty at a railway station". The purpose of implementing a simulator is to improve the ability of students to skillfully apply professional competencies in train work, be able to competently use the knowledge gained in emergency and non-standard situations, make optimal decisions in operational work, and implement a system of measures to prevent defects in the production process.
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Forte, Dario V. "Security for safety in railways." Network Security 2008, no. 5 (May 2008): 17–19. http://dx.doi.org/10.1016/s1353-4858(08)70066-7.
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Sakimpa, Keponyi, Dr Willy M. Muturi, and Dr Mos Otieno. "EFFECT OF RAILWAY NETWORK INEFFICIENCIES ON BUSINESS OPERATIONS OF TATA CHEMICALS MAGADI, MOMBASA IN KENYA." International Journal of Business Strategies 1, no. 1 (October 11, 2016): 26. http://dx.doi.org/10.47672/ijbs.38.
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Purpose: The purpose of this study was to investigate the effect of railway network inefficiencies on business operations of Tata chemicals Magadi, Mombasa in Kenya.Methodology: This study adopted a descriptive survey design. The target population of this study was the 450 employees of TATA Chemical Magadi Ltd. The study used a sample of 135 employees. The study employed stratified random sampling to identify the 135 respondents. The strata were those of top management, middle management/supervisors and non-managerial employees. Primary data was used to gather information by use of questionnaires. Information was sorted, coded and input into the statistical package for social sciences (SPSS 20) for production of descriptive and inferential statistics.Results: Results on the analysis of variance showed that the overall model was statistically significant and that the independent variables were good predictors of performance. This was supported by an F statistic of 71.69 and the reported p value (0.000) which was less than the conventional probability of 0.05significance level. Descriptive results indicated that inefficiencies of Kenya Railway Corporation greatly affect production targets, customer satisfaction, sales targets and equipment utilization in Tata chemicals Magadi Ltd which in turn affects the performance of the company.Unique contribution to theory, practice and policy: The government should allocate additional annual budget to the Kenya Railways Corporation to provide efficient means of transporting freight between cities and towns. Additionally, management of Tata Chemicals Magadi Ltd should exercise stronger leadership to enhance long term planning and disaster management to avoid loss to customers and manage its efficiency.
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Wang, Hai Qun, and Wen Jun Xue. "Development and Application of the Railway Transportation Management Information System." Applied Mechanics and Materials 385-386 (August 2013): 1848–51. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.1848.
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The railway transportation management information system regards the control and management of metallurgical enterprise railway transportation as the object, integrates railway signaling computer interlocking, railway transportation dispatching jobs plan, railway logistics tracking management information and other systems, applys the advanced technology of railway transportation informatization management system, to realize remote control of railway signaling in plant, train management, current car management, locomotive management, statistics management, etc. The system realizes the centralized management and control of railway transportation, meets the requirements of production organization and improve the transportation efficiency.
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Malvezzi, M., P. Presciani, B. Allotta, and P. Toni. "Probabilistic analysis of braking performance in railways." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 217, no. 3 (May 1, 2003): 149–65. http://dx.doi.org/10.1243/095440903769012867.
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To increase safety and efficiency in the management of railway traffic, a new speed control system, named SCMT, is currently being developed by RFI and Trenitalia for the Italian Railways. Other innovative speed supervision systems are being developed in Europe, such as the ETCS/ERTMS, which will also be installed on the new high-speed line Roma-Napoli. All traffic management systems are generally based on a set of supervision curves relating the allowed velocity of the train to the running distance, in order to ensure the respect of speed restrictions on the line by ‘soft’ or ‘hard’ intervention such as an acoustic and visual warning to the driver (soft) and/or service or emergency braking (hard) in the case of train velocity exceeding the permitted one. To elaborate this set of supervision curves, the on-board unit requires train deceleration depending on time and speed as basic information about the braking behaviour of the train. The implementation of a speed supervision system requires a preliminary definition of braking models that allow the conversion of the general parameters affecting the braking performances of trains (such as a braked weight percentage, goods/passenger brake position, brake equipment, train length, etc.) into a basic deceleration profile as a function of time, during the deceleration rise phase, and of speed, during fully developed braking. The deceleration used to evaluate braking curves is obtained by applying a proper safety margin to the nominal deceleration value (which depends on train characteristics). In this paper a probabilistic analysis of train deceleration is carried out, starting from probability distributions of parameters affecting the braking. For the major parameters, the probability distribution was determined on the basis of technical knowledge and experimental results. The aim of this work is to determine the probability that the real deceleration is lower than the nominal value multiplied by a given safety margin.
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Kovalev, K. E., and A. V. Novichikhin. "volution of scientific and technical foundations for the transport system efficiency improvement with the interaction of heavy- and low-traffic lines." Proceedings of Petersburg Transport University 2021, no. 2 (June 2021): 169–76. http://dx.doi.org/10.20295/1815-588x-2021-2-169-176.
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Objective: The solutions to the problem of low-traffic railway lines functioning has been considered, and the approach to improving the efficiency of the transport system with the interaction of heavy- and low-traffic lines has been characterized. The transport network management principles have been developed and the mathematical formulation of the problem of increasing the low-traffic lines efficiency has been carried out. The authors have supplemented the classification of existing low-traffic lines in order to develop more accurate scenarios for increasing profitability and promoting development of low-traffic lines. The article provides a graphic model of heavy- and low-traffic lines management, a control system comprising structural divisions of JSC Russian Railways and regional authorities, taking into account external factors, the demands of the population and enterprises in transportation and their satisfaction, and technical, technological and information resources. Methods: Methods of analysis and synthesis, systems theory, and mathematical modeling have been used. Results: The conceptual structure of the management model for heavy- and low-traffic lines is proposed. Practical importance: A set of indicators for assessing the low-traffic lines performance characteristics is provided, including quantitative technical, technological and economic parameters, as well as indicators for assessing the quality of transport services. The railway line life cycle stages have been determined and the development and operation scenarios for the low-traffic lines have been given.
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Plekhanov, P. A. "Ensuring integrated safety in railway transport in the context of strategic development." Proceedings of Petersburg Transport University 17, no. 4 (December 2020): 552–65. http://dx.doi.org/10.20295/1815-588x-2020-4-552-565.
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Objective: Defi nition of the concept and components of integrated safety in railway transport, description of approaches to ensuring integrated safety. Methods: The general methods of empirical (observation and comparison) and theoretical (analysis and synthesis) research were applied. Results: Drawing on the analysis of the national regulatory framework in the fi eld of safety, it is proposed to defi ne the concept of integrated safety in railway transport as the absence of an unacceptable risk of hazardous events associated with damage to human life and health, damage to the environment and material values. The main types of safety that constitute integrated safety in railway transport are identifi ed, which include traffi c safety, transport security, fi re safety, sanitary and epidemiological safety, information security, cybersecurity, labor safety, environmental safety, industrial safety, safety in emergency situations. On the basis of international experience, the necessity of forming an integrated management system for integrated safety in railway transport is shown. The concept of a situational center for managing the integrated safety of the transportation process in railway transport is described. Practical importance: The proposed characteristics of the concept of integrated safety in railway transport and mechanisms for its ensuring can be used to organize practical activities to achieve the strategic goals of increasing the level of safety on domestic railways
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Wang, Li, Min An, Limin Jia, and Yong Qin. "Application of Complex Network Principles to Key Station Identification in Railway Network Efficiency Analysis." Journal of Advanced Transportation 2019 (December 2, 2019): 1–13. http://dx.doi.org/10.1155/2019/1574136.
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Network efficiency analysis becomes important in railways in order to contribute towards improving the safety and capacity of the rail network, making rail travel more attractive for passengers, and improving industry practice and informing policy development. However, a physical railway network structure is a complicated system, and the operation, maintenance, and management of such a network is a difficult task which may be affected by many influential factors. By using efficiency analysis technology for a railway network, combining physical structure with operation functions can help railway industry to optimize the railway network while improving its efficiency and reliability. This paper presents a new methodology based on complex network principles that combines the physical railway structure with railway operation strategy for a railway network efficiency analysis. In this method, two network models of railway physical and train flow networks are developed for the identification of key stations in the railway network based on network efficiency contribution in which the terms of degree, strength, betweenness, clustering coefficient, and a comprehensive factor are taken into consideration. Once the key stations have been identified and analysed, the railway network efficiency is then studied on the basis of selective and random modes of the station failures. A case study is presented in this paper to demonstrate the application of the proposed methodology. The results show that the identified key stations in the railway network play an important role in improving the overall railway network efficiency, which can provide useful information to railway designers, engineers, operators and maintainers to operate and maintain railway network effectively and efficiently.
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Pronevich, O. B., and I. B. Shubinsky. "Risk-based automated system for prediction of fire safety in railway facilities." Dependability 19, no. 1 (March 13, 2019): 48–54. http://dx.doi.org/10.21683/1729-2646-2019-19-1-48-54.
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Aim.The development of the Russian railway industry is associated with the growing number of operated buildings, rolling stock, more complex business processes of infrastructure maintenance and client service. In this context, JSC Russian Railways (JSC RZD) needs to manage the fire safety of more than ten thousand units of traction rolling stock and hundreds of buildings, where potential fires may cause harm to passengers or interruption of service. Fire safety management of both fixed and mobile railway facilities is performed at all lifecycle stages from design to disposal. Implementing the processes of fire safety diagnostics and prediction requires the development of a man-machine system whose core would be an automated fire risk control system (ACS) that allows – basedon the fire risk prediction – makingdecisions regarding the requirement for the repairs, replacement or maintenance of railway facilities and fire safety systems. Methods.The methods of the automatic control theory, expert assessment were used. The study aimed to develop an algorithm of automated auditing of railway facilities fire safety. Results.It is established that the majority fire safety control systems use gas concentration sensors to detect symptoms of hazard before flame development. This approach is hardly effective in terms of fire safety of railway facilities. For railway facilities whose actual state has an effect on the probability of fire a fire audit algorithm was developed that is based on the existing service and repair system, as well as statistical data on the states of railway facilities that precede fire. In order to enable systematic risk management measures in a large number of railway facilities, the paper proposes the structure of an automated fire risks management system that includes a fire safety management center and a mobile hardware and software system for fire safety auditing. Conclusions. It shows the importance of developing a proactive fire safety management system based on fire risk assessment. It was identified that information on the states preceding fires in railway facilities can be obtained from both the existing automated failure reporting and risk assessment systems and the diagnostic results of the actual state of objects as part of scheduled preventive maintenance. A method of automated assessment of fire hazard is proposed for systematic management of fire risks in many railway facilities.
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Dvulit, Zoryana, and Nadia Seliuchenko. "Formation of information support for the development of freight transportation of JSC “Ukrzaliznytsya”." Management and Entrepreneurship in Ukraine: the stages of formation and problems of development 2021, no. 2 (December 2021): 9–20. http://dx.doi.org/10.23939/smeu2021.02.009.
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A methodical approach to the formation of indicators of the information base of management decisions on the development of freight JSC “Ukrzaliznytsia”, which consists in calculating the taxonomy of the level of development of freight by substantiating systems and its elements: eighteen static systems, elements of which are six regional railways; seven dynamic systems – regional branches and in general JSC “Ukrzaliznytsia”. A spatial and temporal comparison of the development of freight transportation of selected systems is carried out. The taxonomy index is calculated on the basis of five indicators of freight traffic for the period 2002-2019. The analysis of static systems made it possible to identify the uneven development of freight transportation of regional branches of JSC “Ukrzaliznytsia” for the studied 18 years. The temporal comparison of the levels of development of freight traffic by each railway in particular also showed their instability. Fluctuations are observed in the last three years of the study period. In 2018, JSC “Ukrzaliznytsia” demonstrated the lowest level of freight transportation development for the entire analyzed year 2002-2019. It was established that both external and internal factors caused the negative impact on rail transportation, in particular: the economic crisis of 2014-2015; military action in eastern Ukraine; ineffective management at different levels of government. The introduction of quarantine measures due to the COVID-19 pandemic caused unprofitable and deteriorating financial and economic performance of JSC Ukrzaliznytsia, and its six regional branches in 2020, in particular, revenues from freight transportation decreased by 10.3% compared to 2019, and net loss amounted to UAH 11.9 billion. Implementing the anti-crisis plan by the management of JSC Ukrzaliznytsia and the improvement of operational work in the freight segment has yielded some positive results. However, for the effective planning and management decisions in the field of freight transportation an important component is the proper formation of an information base. The proposed methodological approach will serve as an effective tool not only in the management of the freight segment of individual regional branches or enterprises in particular, but also the economic development of JSC “Ukrzaliznytsia” in general and can be used by other large companies.
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Zubkova, E. A., and T. A. Karpeeva. "Scientific center “Express” of the JSC “VNIIZHT”: history and modernity." VNIIZHT Scientific Journal 80, no. 4 (September 1, 2021): 240–48. http://dx.doi.org/10.21780/2223-9731-2021-80-4-240-248.
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The article reflects the most important areas of work of scientists and employees of the scientific center “Express” and their contribution to the formation and development of information technology since the founding in 1959 of the Department of computer science of the All-Union Scientific Research Institute of Railway Transport and up to the present.Theoretical foundations of the application of transport cybernetics in the national economy of the country were created by Corresponding Member of the Academy of Sciences of the USSR A. P. Petrov, who was one of the first to use mathematical methods and computing technology in solving transport problems and headed the development in this direction at the institute. The practical work on the creation of the first domestic automated system for selling tickets for trains, called “Express”, was headed by B. E. Marchuk.Since then, the “Express” system has transformed from a local ticketing system at the Kievsky railway terminal in Moscow into a powerful multifunctional international passenger traffic management system that interacts with the ticket reservation systems of European countries.Theoretical and practical developments carried out by the scientific center have resulted in the introduction of new information technologies in the Russian Railways holding and in the railway administrations of the member states of the Commonwealth.At present, the main activities of the staff of the scientific center are the creation of automated control system “Express” of a new generation (ACS “Express” NP) and the system of international integration of passenger transportation Express International.
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Cheremisin, V. T., and E. A. Tretyakov. "Improving the efficiency of distribution electric networks of railways based on the multi-agent mode management method." Vestnik IGEU, no. 4 (2019): 54–63. http://dx.doi.org/10.17588/2072-2672.2019.4.054-063.
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With the increase in observability and controllability of regimes, the development of methods for managing distributed objects of the electrical network is becoming more and more important. The main research directions in smart grids are based on the theory of fuzzy sets, genetic algorithms, neural networks, stochastic control, spectral graph, bilinear matrix inequality constraints. They are aimed at solving multicriterion optimization problems of electric networks with distributed objects and are computationally-demanding and time-consuming. Meanwhile, the methods of multi-agent control of the power supply system based on the parallelization of information flows and coordination of the operation of distributed linear regulators are becoming more common. The purpose of this study is to develop methods for controlling the operating modes of smart distribution electric networks of railways using an agent-based approach for stabilizing voltages within specified limits and reducing electric power losses. This goal can be achieved by solving the problems of developing an algorithm for managing power flows based on the coordinated work of active and reactive power sources and principles of demand management of active consumers. The multi-agent power flow control was realized in the AnyLogic program, the simulation modeling of the electrical network modes was performed in Matlab Simulink with assumptions of linear characteristics of voltage loads. A method has been developed to control the operation modes of smart distribution electric networks of railways based on the presented power flow control algorithm, the hallmarks of which are the use of linearized equations for determining control actions in small increments, which allows high speed data analysis in real time without calculating steady-state modes with disturbances. The obtained simulation results prove the validity of power flow control methods for voltage stabilization based on multi-agent control and the possibility of their practical implementation on modern equipment in smart distribution networks of railways.
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Benzeroual, Hajar, Abdellatif Khamlichi, and Alia Zakriti. "Inspection of transverse flaws for railways using phased array ultrasonic technique." International Review of Applied Sciences and Engineering 12, no. 2 (May 29, 2021): 119–26. http://dx.doi.org/10.1556/1848.2020.00187.
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AbstractRail monitoring is an important activity which aims to preserve the safety and availability of railways. According to statistics, the primary cause of railway accidents is due to transverse defects that occur in the rail head. These special defects develop generally in a plane orthogonal to the rail running direction. The detection of these defects is a priority to increase the safety of rail transportation. Rail control monitoring techniques mostly rely on infrared thermography, eddy currents, air-coupled acoustic sensors, and ultrasounds. The present research studies the rail diagnosis by means of a non-contact device. The focus is on ultrasonic based methods where excitation is generated by thermal elastic coupling following laser irradiation of the rail head. For the reception of echoes, a special ultrasound sensor was used. In order to sense defects, phased array elements, which use multiple transducers and electronic time delays, are used to increase and to focalise the signal intensity. Flaws that have a moderate extension are better detected by the proposed method than with laser irradiation consisting of a single spot.
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Jing, Yun, Si-Ye Guo, Xuan Wang, and Fang-Qiu Chen. "Research on Coordinated Development of a Railway Freight Collection and Distribution System Based on an “Entropy-TOPSIS Coupling Development Degree Model” Integrated with Machine Learning." Journal of Advanced Transportation 2020 (September 15, 2020): 1–14. http://dx.doi.org/10.1155/2020/8885808.
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In recent years, with the gradual networking of high-speed railways in China, the existing railway transportation capacity has been released. In order to improve transportation capacity, railway freight transportation enterprises companies have gradually shifted the transportation of goods from dedicated freight lines to passenger-cargo lines. In terms of the organization form of collection and distribution, China has a complete research system for heavy-haul railway collection and distribution, but the research on the integration of collection and distribution of the ordinary-speed railway freight has not been completed. This paper combines the theories of the integration of collection and distribution theory, coordination theory, and coupling theory and incorporates the machine learning fuzzy mathematics to construct an “Entropy-TOPSIS Coupling Development Degree Model” for dynamic intelligent quantitative analysis of the synergy of railway freight collection and distribution systems. Finally, we take the Tongchuan Depot of “China Railway Xi’an Group Co., Ltd.” as a research object to construct a target system and use the intelligent information acquisition system to collect basic data. The analysis results show that through the coordinated control of the freight collection and distribution system, the coordination between the subsystems of the integrated freight collection and distribution system is increased by 5.94%, which verifies the feasibility of the model in the quantitative improvement of the integration of collection and distribution system. It provides a new method for the research of integrated development of railway freight collection and distribution.