Concurrent planning of railway maintenance windows and train services

Download Concurrent planning of railway maintenance windows and train services PDF Online Free

Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9176852016
Total Pages : 26 pages
Book Rating : 4.1/5 (768 download)

DOWNLOAD NOW!


Book Synopsis Concurrent planning of railway maintenance windows and train services by : Tomas Lidén

Download or read book Concurrent planning of railway maintenance windows and train services written by Tomas Lidén and published by Linköping University Electronic Press. This book was released on 2018-11-05 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Towards concurrent planning of railway maintenance and train services

Download Towards concurrent planning of railway maintenance and train services PDF Online Free

Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9176857743
Total Pages : 67 pages
Book Rating : 4.1/5 (768 download)

DOWNLOAD NOW!


Book Synopsis Towards concurrent planning of railway maintenance and train services by : Tomas Lidén

Download or read book Towards concurrent planning of railway maintenance and train services written by Tomas Lidén and published by Linköping University Electronic Press. This book was released on 2016-09-05 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficiency in the public and freight transportation systems is of crucial importance for a society. Railways can offer high capacity and relatively low environmental impact, but require that several technical systems are tuned and operate well. Specifically there is a very tight interdependency between infrastructure and trains, which distinguishes railways from other transportation modes. Thus maintenance of all the subsystems is needed. Railways do also have some specific and complicating properties that influence maintenance and operations: Most activities need exclusive access to the infrastructure and - due to the geographic layout, safety requirements and partitioning of the subsystems - large portions of the network will be affected by each activity. Furthermore, several organisational units and resources are involved, ranging from governments and regulatory bodies, over operators and contractors to suppliers, technical experts and work forces. Thus railway maintenance is complicated to organize and consumes large budgets. This thesis treats the planning and scheduling problems that concern railway infrastructure maintenance and the coordination with train traffic. Mathematical methods and optimization are studied and used, with the aim of advancing the knowledge about models for solving such problems. The thesis contains three papers and presents: (1) A survey regarding railway maintenance activities, the major planning problems and the conducted research so far; (2) A model for quantitative comparison and assessment of competing capacity requests from train operations and maintenance; (3) An optimization model for integrated scheduling of both maintenance windows and train services. The work can be helpful for practitioners as well as researchers who want to take further steps in this interesting and challenging area. Based on the results that have been obtained, future research directions are presented that may lead towards practical use of concurrent planning of railway maintenance and train services.

Methods for Capacity Allocation in Deregulated Railway Markets

Download Methods for Capacity Allocation in Deregulated Railway Markets PDF Online Free

Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9179297714
Total Pages : 51 pages
Book Rating : 4.1/5 (792 download)

DOWNLOAD NOW!


Book Synopsis Methods for Capacity Allocation in Deregulated Railway Markets by : Abderrahman Ait Ali

Download or read book Methods for Capacity Allocation in Deregulated Railway Markets written by Abderrahman Ait Ali and published by Linköping University Electronic Press. This book was released on 2020-10-01 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faced with increasing challenges, railways around Europe have recently undergone major reforms aiming to improve the efficiency and competitiveness of the railway sector. New market structures such as vertical separation, deregulation and open access can allow for reduced public expenditures, increased market competition, and more efficient railway systems. However, these structures have introduced new challenges for managing infrastructure and operations. Railway capacity allocation, previously internally performed within monopolistic national companies, are now conferred to an infrastructure manager. The manager is responsible for transparent and efficient allocation of available capacity to the different (often competing) licensed railway undertakings. This thesis aims at developing a number of methods that can help allocate capacity in a deregulated (vertically separated) railway market. It focuses on efficiency in terms of social welfare, and transparency in terms of clarity and fairness. The work is concerned with successive allocation of capacity for publicly controlled and commercial traffic within a segmented railway market. The contributions include cost benefit analysis methods that allow public transport authorities to assess the social welfare of their traffic, and create efficient schedules. The thesis also describes a market-based transparent capacity allocation where infrastructure managers price commercial train paths to solve capacity conflicts with publicly controlled traffic. Additionally, solution methods are developed to help estimate passenger demand, which is a necessary input both for resolving conflicts, and for creating efficient timetables. Future capacity allocation in deregulated markets may include solution methods from this thesis. However, further experimentations are still required to address concerns such as data, legislation and acceptability. Moreover, future works can include prototyping and pilot projects on the proposed solutions, and investigating legal and digitalisation strategies to facilitate the implementation of such solutions. Med ökande utmaningar har järnvägar runt om i Europa genomgått stora reformer som syftar till att förbättra järnvägssektorns effektivitet och konkurrenskraft. Nya marknadsstrukturer såsom vertikal separering, avreglering och öppet tillträde för flera operatörer kan möjliggöra minskade offentliga kostnader, ökad marknadskonkurrens och effektivare järnvägssystem. Denna omreglering av järnvägsmarknaderna har dock skapat nya utmaningar för hanteringen av järnvägsinfrastruktur och drift. Tilldelning av järnvägskapacitet, vilket tidigare sköttes inom nationella monopolföretag, måste nu göras av en infrastrukturförvaltare (infrastructure manager). Förvaltarens kapacitetstilldelning till olika (ofta konkurrerande) licensierade järnvägsföretag (railway undertakings) måste samtidigt vara transparent, rättvis och leda till ett effektivt kapacitetsutnyttjande. I denna avhandling utvecklas metoder som kan användas av en infrastrukturförvaltare för att tilldela kapacitet i en avreglerad järnvägsmarknad. Den fokuserar på samhällsekonomiskt effektiva utfall men även transparens, tydlighet och rättvisa. Avhandlingens bidrag omfattar samhällsekonomiska analysmetoder som gör det möjligt för regionala kollektivtrafikmyndigheter att bedöma den samhällsekonomiska effektiviteten för deras trafikering och skapa ett effektivt utbud. Med dessa metoder som utgångspunkt beskrivs en marknadsbaserad och transparent tilldelningsprocess för kapacitet där infrastrukturförvaltare prissätter kommersiella tåglägen för att lösa kapacitetskonflikter med offentligt kontrollerad trafik. Dessutom utvecklas optimeringsmetoder för att estimera passagerarefterfrågan och för att skapa effektiva tågtidtabeller. Framtida kapacitetstilldelning på avreglerade marknader kan inkludera lösningsmetoder från denna avhandling. Ytterligare experiment krävs dock fortfarande för att hantera problem såsom data, lagstiftning och godtagbarhet. Dessutom kan framtida arbete omfatta prototyper och pilotprojekt av de föreslagna lösningarna och undersöka lagliga och digitaliseringsstrategier för att underlätta implementeringen av sådana lösningar.

Operations research models for scheduling railway infrastructure maintenance

Download Operations research models for scheduling railway infrastructure maintenance PDF Online Free

Author :
Publisher : Rozenberg Publishers
ISBN 13 : 9036101263
Total Pages : 190 pages
Book Rating : 4.0/5 (361 download)

DOWNLOAD NOW!


Book Synopsis Operations research models for scheduling railway infrastructure maintenance by : Gabriella Budai-Balke

Download or read book Operations research models for scheduling railway infrastructure maintenance written by Gabriella Budai-Balke and published by Rozenberg Publishers. This book was released on 2009 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Railroad Decision Support Tools for Track Maintenance

Download Railroad Decision Support Tools for Track Maintenance PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)

DOWNLOAD NOW!


Book Synopsis Railroad Decision Support Tools for Track Maintenance by : Alexander Hale Lovett

Download or read book Railroad Decision Support Tools for Track Maintenance written by Alexander Hale Lovett and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances in Smart Vehicular Technology, Transportation, Communication and Applications

Download Advances in Smart Vehicular Technology, Transportation, Communication and Applications PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3319707302
Total Pages : 408 pages
Book Rating : 4.3/5 (197 download)

DOWNLOAD NOW!


Book Synopsis Advances in Smart Vehicular Technology, Transportation, Communication and Applications by : Jeng-Shyang Pan

Download or read book Advances in Smart Vehicular Technology, Transportation, Communication and Applications written by Jeng-Shyang Pan and published by Springer. This book was released on 2017-11-01 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents papers from the First International Conference on Smart Vehicular Technology, Transportation, Communication and Applications (VTCA 2017). Held from 6 to 8 November 2017 in Kaohsiung, Taiwan, the conference was co-sponsored by Springer, Fujian University of Technology in China, Fujian Provincial Key Laboratory of Digital Equipment, Fujian Provincial Key Lab of Big Data Mining and Applications, and National Kaohsiung University of Applied Sciences in Taiwan. The book is a valuable resource for researchers and professionals engaged in all areas of smart vehicular technology, vehicular transportation, vehicular communication, and applications.

The Urban Rail Development Handbook

Download The Urban Rail Development Handbook PDF Online Free

Author :
Publisher : World Bank Publications
ISBN 13 : 146481273X
Total Pages : 845 pages
Book Rating : 4.4/5 (648 download)

DOWNLOAD NOW!


Book Synopsis The Urban Rail Development Handbook by : Daniel Pulido

Download or read book The Urban Rail Development Handbook written by Daniel Pulido and published by World Bank Publications. This book was released on 2018-09-11 with total page 845 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities across the globe are looking to develop affordable, environmentally friendly, and socially responsible transportation solutions that can meet the accessibility needs of expanding metropolitan populations and support future economic and urban development. When appropriately planned and properly implemented as part of a larger public transportation network, urban rail systems can provide rapid mobility and vital access to city centers from surrounding districts. High-performing urban rail services, when carefully approached as development projects, can help enhance quality of life by giving citizens access to employment opportunities, essential services, urban amenities, and neighboring communities. The purpose of this Handbook is to synthesize and disseminate knowledge to inform the planning, implementation, and operations of urban rail projects with a view towards: -- Emphasizing the need for early studies and project planning; -- Making projects more sustainable (economically, socially, and environmentally); -- Improving socioeconomic returns and access to opportunities for users; -- Maximizing the value of private participation, where appropriate; and -- Building capacity within project implementing and managing institutions This Handbook provides experiential advice to tackle the technical, institutional, and financial challenges faced by decision makers considering urban rail projects. It brings together the expertise of World Bank staff and the input of numerous specialists to synthesize international 'good practices' and recommendations that are independent of commercial, financial political, or other interests. The material presented is intended as an honest-broker guide to maximize the impact and manage the challenges of urban rail systems in cities in both developed and developing countries. Rather than identify a single approach, this Handbook acknowledges the complexities and context necessary when approaching an urban rail development by helping to prepare decision makers to ask the right questions, consider the key issues, perform the necessary studies, apply adequate tools, and learn from international good practice all at the right time in the project development process.

PC Mag

Download PC Mag PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis PC Mag by :

Download or read book PC Mag written by and published by . This book was released on 1993-06-29 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. Our expert industry analysis and practical solutions help you make better buying decisions and get more from technology.

Planning in Intelligent Systems

Download Planning in Intelligent Systems PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 0471781258
Total Pages : 592 pages
Book Rating : 4.4/5 (717 download)

DOWNLOAD NOW!


Book Synopsis Planning in Intelligent Systems by : Wout van Wezel

Download or read book Planning in Intelligent Systems written by Wout van Wezel and published by John Wiley & Sons. This book was released on 2006-03-03 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comparative examination of planning paradigms This text begins with the principle that the ability to anticipateand plan is an essential feature of intelligent systems, whetherhuman or machine. It further assumes that better planning resultsin greater achievements. With these principles as a foundation,Planning in Intelligent Systems provides readers with the toolsneeded to better understand the process of planning and to becomebetter planners themselves. The text is divided into two parts: * Part One, "Theoretical," discusses the predominant schools ofthought in planning: psychology and cognitive science,organizational science, computer science, mathematics, artificialintelligence, and systems theory. In particular, the book examinescommonalities and differences among the goals, methods, andtechniques of these various approaches to planning. The result is abetter understanding of the process of planning through thecross-fertilization of ideas. Each chapter contains a shortintroduction that sets forth the interrelationships of that chapterto the main ideas featured in the other chapters. * Part Two, "Practical," features six chapters that center on acase study of The Netherlands Railways. Readers learn to applytheory to a real-world situation and discoverhow expanding theirrepertoire of planning methods can help solve seemingly intractableproblems. All chapters have been contributed by leading experts in thevarious schools of planning and carefully edited to ensure aconsistent high standard throughout. This book is designed to not only expand the range of planningtools used, but also to enable readers to use them moreeffectively. It challenges readers to look at new approaches andlearn from new schools of thought. Planning in Intelligent Systemsdelivers effective planning approaches for researchers, professors,students, and practitioners in artificial intelligence, computerscience, cognitive psychology, and mathematics, as well as industryplanners and managers.

PC Mag

Download PC Mag PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis PC Mag by :

Download or read book PC Mag written by and published by . This book was released on 1993-05-25 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: PCMag.com is a leading authority on technology, delivering Labs-based, independent reviews of the latest products and services. Our expert industry analysis and practical solutions help you make better buying decisions and get more from technology.

Factory and Industrial Management

Download Factory and Industrial Management PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1094 pages
Book Rating : 4.:/5 ( download)

DOWNLOAD NOW!


Book Synopsis Factory and Industrial Management by : John Robertson Dunlap

Download or read book Factory and Industrial Management written by John Robertson Dunlap and published by . This book was released on 1911 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Factory and Industrial Management

Download Factory and Industrial Management PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1104 pages
Book Rating : 4.:/5 (28 download)

DOWNLOAD NOW!


Book Synopsis Factory and Industrial Management by :

Download or read book Factory and Industrial Management written by and published by . This book was released on 1911 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computerworld

Download Computerworld PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis Computerworld by :

Download or read book Computerworld written by and published by . This book was released on 1996-10-21 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 40 years, Computerworld has been the leading source of technology news and information for IT influencers worldwide. Computerworld's award-winning Web site (Computerworld.com), twice-monthly publication, focused conference series and custom research form the hub of the world's largest global IT media network.

ERA Headlights

Download ERA Headlights PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 426 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis ERA Headlights by :

Download or read book ERA Headlights written by and published by . This book was released on 1961 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

American Universities and Colleges

Download American Universities and Colleges PDF Online Free

Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110850486
Total Pages : 2012 pages
Book Rating : 4.1/5 (18 download)

DOWNLOAD NOW!


Book Synopsis American Universities and Colleges by :

Download or read book American Universities and Colleges written by and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-10-08 with total page 2012 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "American Universities and Colleges".

Computerworld

Download Computerworld PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4./5 ( download)

DOWNLOAD NOW!


Book Synopsis Computerworld by :

Download or read book Computerworld written by and published by . This book was released on 1997-01-27 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 40 years, Computerworld has been the leading source of technology news and information for IT influencers worldwide. Computerworld's award-winning Web site (Computerworld.com), twice-monthly publication, focused conference series and custom research form the hub of the world's largest global IT media network.

Track Design Handbook for Light Rail Transit

Download Track Design Handbook for Light Rail Transit PDF Online Free

Author :
Publisher : Transportation Research Board
ISBN 13 : 0309258243
Total Pages : 695 pages
Book Rating : 4.3/5 (92 download)

DOWNLOAD NOW!


Book Synopsis Track Design Handbook for Light Rail Transit by :

Download or read book Track Design Handbook for Light Rail Transit written by and published by Transportation Research Board. This book was released on 2012 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: TCRP report 155 provides guidelines and descriptions for the design of various common types of light rail transit (LRT) track. The track structure types include ballasted track, direct fixation ("ballastless") track, and embedded track. The report considers the characteristics and interfaces of vehicle wheels and rail, tracks and wheel gauges, rail sections, alignments, speeds, and track moduli. The report includes chapters on vehicles, alignment, track structures, track components, special track work, aerial structures/bridges, corrosion control, noise and vibration, signals, traction power, and the integration of LRT track into urban streets.