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Author: V Profillidis Publisher: Routledge ISBN: 1351150839 Category : Business & Economics Languages : en Pages : 500
Book Description
In a rapidly changing world, with increasing competition in all sectors of transportation, railways are in a period of restructuring their management and technology. New methods of organization are introduced, commercial and tariff policies change radically, a more entrepreneurial spirit is required. At the same time, new high-speed tracks are being constructed and old tracks are renewed, high-comfort rolling stock vehicles are being introduced, logistics and combined transport are being developed. Awareness of environmental issues and search for greater safety give to the railways a new role within the transportation system. Meanwhile, methods of analysis have significantly evolved, principally due to computer applications and new ways of thinking and approaching old problems. Therefore it becomes necessary to come up with a new scientific approach to tackle management and engineering aspects of railways, to understand in-depth the origins and inter-relationships of the various situations and phenomena and to suggest the appropriate methods and solutions to solve the various emerging problems. This book aims to cover the need for a new scientific approach for railways. It is written for railway managers, economists and engineers, consulting economists and engineers, students of schools of engineering, transportation and management. The book is divided into three distinct parts: Part A deals with the management of railways, Part B deals with the track and, Part C deals with rolling stock and environmental topics. Each chapter of the book contains the necessary theoretical analysis of the phenomena studied, the recommended solutions, applications, charts and design of the specific railway component. In this way, both the requirement for a theoretical analysis is met, and the need of the railway manager and engineer for tables, nomographs, regulations, etc. is satisfied. Railways in Europe have separated activities of infrastructure from those of operation. In other parts of the world, however, railways remain unified. The book addresses both situation. Railways present great differences in their technologies. Something may be valid for one such technology, but not for another. To overcome this problem, regulations of the International Union of Railways (UIC) as well as European Standardization (CEN) have been used to the greatest extent possible. Whenever a specific technology or method is presented, the limits of its application are clearly emphasized.
Author: S. Ponnuswamy Publisher: Alpha Science International, Limited ISBN: 9781842656853 Category : Railroad engineering Languages : en Pages : 0
Book Description
RAILWAY TRANSPORTATION is an up-to-date presentation of essential features of railways with special emphasis on the engineering aspects. The coverage includes all aspects of the railway route planning, different forms of traction. It includes details of design, construction and maintenance of the basic railway infrastructure comprising track and structures, stations and yards and basics of signaling and electric traction. As a special feature, it covers the basic details of different systems of train running and train operation planning, implementation and monitoring. It also covers details of modernization on railways, Metro rail planning and construction, High Speed railways and Safety on railways.
Author: Tomas Lidén Publisher: Linköping University Electronic Press ISBN: 9176852016 Category : Languages : en Pages : 26
Book Description
Efficiency in public and freight transportation systems is of great importance for a society. Railways can other high capacity and relatively low environmental impact, but require that several technical systems are tuned and operate well. Specifically there is a tight interdependency between infrastructure and trains. The consequences are that all subsystems must be maintained and that the coordination of infrastructure activities and train operations is essential. Railway infrastructure maintenance and train services should ideally be planned together, but practice and research about railway scheduling has historically focused mainly on train operations and timetabling while maintenance planning has received less attention | and little research have considered the joint scheduling of both types of activities. Instead the traditional approach has been a sequential and iterative planning procedure, where train timetabling often has precedence over infrastructure maintenance. This thesis studies how maintenance windows, which are regular time windows reserved for maintenance work, can be dimensioned and jointly scheduled with train services in a balanced and efficient way for both maintenance contractors and train operators. Mathematical methods are used, with the aim of advancing the knowledge about quantitative methods for solving such coordination problems. The thesis contributes with new optimization models that jointly schedule maintenance windows and train services, investigates the solving efficiency of these models, and studies crucial extensions of the planning problem | primarily for the consideration of maintenance resources. Furthermore, the models are applied to, verified and validated on a demanding real-life problem instance. The main results are that integrated and optimal scheduling of maintenance windows and train services is viable for problems of practical size and importance, and that substantial maintenance cost savings can be achieved with such an integrated approach as compared to a traditional sequential planning process. The thesis consists of an introduction and overview of the research, followed by six papers which present: (1) A cost benefit model for assessment of competing capacity requests at a single location; (2) An optimization model for integrated scheduling of both maintenance windows and train services; (3) Mathematical reformulations that strengthen the optimization model; (4) Extensions for handling resource considerations and cyclic schedules; (5) A case study for a major single track line in Sweden; and (6) A mathematical study of length-restricted sequences under cyclic conditions.
Author: Gabriella Budai-Balke Publisher: Rozenberg Publishers ISBN: 9036101263 Category : Languages : en Pages : 190
Book Description
This thesis can be divided into two parts. In Part I we are dealing with the problem of finding optimal time intervals for carrying out routine maintenance works and large projects in such a way that the track possession costs and maintenance costs are minimized. In Part II of this thesis we focus on rescheduling of the rolling stock in the passenger railways due to changing circumstances and more precisely on the Rolling Stock Rebalancing Problem (RSRP). The main objectives of this thesis are formulated as follows: 1. Review the existing literature on maintenance planning in relation with production. 2. Identify some tactical and operational railway infrastructure maintenance planning problems and develop operations research models for providing decision support. Investigate the effect of planning railway infrastructure maintenance on the train operation and identify rolling stock planning problems that occur during planned infrastructure maintenance. 3. Analyze the considered models, investigate their computational complexity, propose solution methods and test the solutions of the models.
Author: La Salle Extension University Publisher: Legare Street Press ISBN: 9781019874486 Category : Languages : en Pages : 0
Book Description
This book is a comprehensive guide to the organization and management of railways. It covers a wide range of topics, including the history of railways, the design and construction of rail infrastructure, the operation and maintenance of trains, and the management of railway companies. This book is an essential resource for anyone interested in the history of transportation or the modern railway industry. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Konstantinos Tzanakakis Publisher: Springer Nature ISBN: 3030662667 Category : Technology & Engineering Languages : en Pages : 197
Book Description
This book offers a comprehensive and practice-oriented guide to risk management, with a special emphasis on the physical and environmental risks related to the operations of railway systems. It is intended to provide a roadmap for managing the risk by controlling safety. Starting with a concise historical introduction and by presenting basic concepts of risk management, the book describes in turn the railway systems and their complexity. Then, it goes in depth into the process of risk management, describing the main elements, from risk identification, analysis and assessment to risk monitoring and communication. Different risk assessment techniques are reviewed in detail, and the main components of a risk management plan are presented. The book concludes with an introduction to health risk management, describing strategies for performing health risk assessments for staff in safety-critical positions. Based on the conviction that controlling safety is the main strategy in managing risk, and on the fact that the systems we would like to control are complex ones, this book provides transport and safety engineers with the necessary knowledge to effectively managing the risks of the railway system.
Author: Christos N. Pyrgidis Publisher: CRC Press ISBN: 1498788157 Category : Technology & Engineering Languages : en Pages : 580
Book Description
Incorporates More Than 25 Years of Research and ExperienceRailway Transportation Systems: Design, Construction and Operation presents a comprehensive overview of railway passenger and freight transport systems, from design through to construction and operation. It covers the range of railway passenger systems, from conventional and high speed inter
Author: J.J. Kalker Publisher: Springer ISBN: 9789401581523 Category : Technology & Engineering Languages : en Pages : 454
Book Description
In April 1990 a conference was held at the Cracow Institute of Technology, Cracow, Poland. The title of that conference was "Residual Stresses in Rails - Effects on Rail Integrity and Railroad Economics" and its themes were the measurement and prediction of residual stresses in rails, but, as the sub-title suggests, the intention was also to provide a link between research and its application to the practical railway world. At the Cracow conference there were 40 participants with 5 railways and 5 rail makers being represented and 25 papers were given. The Cracow conference was a success, and by March 1991 its off-spring, "The International Conference on Rail Quality and Maintenance for Modern Railway Operations", was conceived and birth was ultimately given in June 1992 at the Technical University, Delft. It turned out to be some baby, with 112 delegates from 24 countries taking part! As with its predecessor, the conference was to provide a forum for the exchange of ideas between research investigators, rail makers and railway engineers. A cursory examination of the list of participants suggests that about 57% were from the railway industry, 34% from universities and other research institutions and 9% from the steel industry. Bearing in mind that some of the railway industry participants were from their respective research and development organisations the balance of interests was about right.