Optimization Based Methods For Revising Train Timetables With Focus On Robustness

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Optimization-Based Methods for Revising Train Timetables with Focus on Robustness

Author : Fahimeh Khoshniyat
Publisher : Linköping University Electronic Press
ISBN 13 : 9176856313
Total Pages : 60 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Optimization-Based Methods for Revising Train Timetables with Focus on Robustness by : Fahimeh Khoshniyat

Download or read book Optimization-Based Methods for Revising Train Timetables with Focus on Robustness written by Fahimeh Khoshniyat and published by Linköping University Electronic Press. This book was released on 2016-12-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increase in the use of railway transport, ensuring robustness in railway timetables has never been this important. In a dense railway timetable even a small disturbance can propagate easily and affect trains' arrival and departure times. In a robust timetable small delays are absorbed and knock-on effects are prevented effectively. The aim of this thesis is to study how optimization tools can support the generation of robust railway traffic timetables. We address two Train Timetabling Problems (TTP) and for both problems we apply Mixed Integer Linear Programming (MILP) to solve them from network management perspectives. The first problem is how robustness in a given timetable can be assessed and ensured. To tackle this problem, a headway-based method is introduced. The proposed method is implemented in real timetables and evaluated from performance perspectives. Furthermore, the impact of the proposed method on capacity utilization, heterogeneity and the speed of trains, is monitored. Results show that the proposed method can improve robustness without imposing major changes in timetables. The second problem addressed in the thesis is how robustness can be assessed and maintained in a given timetable when allocating additional traffic and maintenance slots. Different insertion strategies are studied and their consequences on capacity utilization and on the properties of the timetables are analyzed. Two different insertion strategies are considered: i) simultaneous and ii) stepwise insertion. The results show that inserting the additional trains simultaneously usually results in generating more optimal solutions. However, solving this type of problem is computationally challenging. We also observed that the existing robustness metrics cannot capture the essential properties of having more robust timetables. Therefore we proposed measuring Channel Width, Channel Width Forward, Channel Width Behind and Track Switching. Furthermore, the experimental analysis of the applied MILP model shows that some cases are computationally hard to solve and there is a need to decrease the computation time. Hence several valid inequalities are developed and their effects on the computation time are analyzed. This thesis contains three papers which are appended. The results of this thesis are of special interests for railway traffic planners and it would support their working process. However, railway traffic operators and passengers also benefit from this study.

Optimization of Train Timetables in High-Speed Railway Corridors Considering Passenger Departure Time and Price Preferences

Author : Zhipeng Huang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Optimization of Train Timetables in High-Speed Railway Corridors Considering Passenger Departure Time and Price Preferences by : Zhipeng Huang

Download or read book Optimization of Train Timetables in High-Speed Railway Corridors Considering Passenger Departure Time and Price Preferences written by Zhipeng Huang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a high-speed railway (HSR) corridor, diverse train services are provided by railway companies. These different trains' features own various attributes (e.g., departure time, running speed, and fare) being the basis and focus for passengers deciding their travel. Besides, passenger's varying preference always leads to a diversity of their decision. Focusing on this problem, this paper proposed a train timetable optimization model based on departure time and pricing strategy to further analyze their impact on passengers' travel choices with a consistent operating speed, and to construct an extended time-space-fare network to visualize this process. The generalized cost of each arc in the network will be applied as a criterion for evaluating passenger selection. Then, we adapt a passenger flow allocation method based on the user equilibrium (UE) principle to allocate passenger flow to each train. Finally, a bi-level planning model is designed, where the passenger allocation is performed as the lower-level model, and the timetable decision is the upper-level one to optimize collaboratively. Moreover, a genetic algorithm integrated with the Frank-Wolfe method is designed to seek the optimal timetable and pricing strategy, and a concrete numerical example in Lanzhou-Xi'an HSR is taken to investigate the effectiveness of both the model and the algorithm.

A Simulation-Optimization Approach for Improved Robustness of Railway Timetables

Author : Johan Högdahl
Publisher :
ISBN 13 : 9789178733644
Total Pages : pages
Book Rating : 4.7/5 (336 download)

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Book Synopsis A Simulation-Optimization Approach for Improved Robustness of Railway Timetables by : Johan Högdahl

Download or read book A Simulation-Optimization Approach for Improved Robustness of Railway Timetables written by Johan Högdahl and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Coding Manual for Qualitative Researchers

Author : Johnny Saldana
Publisher : SAGE
ISBN 13 : 1446200124
Total Pages : 282 pages
Book Rating : 4.4/5 (462 download)

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Book Synopsis The Coding Manual for Qualitative Researchers by : Johnny Saldana

Download or read book The Coding Manual for Qualitative Researchers written by Johnny Saldana and published by SAGE. This book was released on 2009-02-19 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Coding Manual for Qualitative Researchers is unique in providing, in one volume, an in-depth guide to each of the multiple approaches available for coding qualitative data. In total, 29 different approaches to coding are covered, ranging in complexity from beginner to advanced level and covering the full range of types of qualitative data from interview transcripts to field notes. For each approach profiled, Johnny Saldaña discusses the method’s origins in the professional literature, a description of the method, recommendations for practical applications, and a clearly illustrated example.

How Learning Works

Author : Susan A. Ambrose
Publisher : John Wiley & Sons
ISBN 13 : 0470617608
Total Pages : 336 pages
Book Rating : 4.4/5 (76 download)

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Book Synopsis How Learning Works by : Susan A. Ambrose

Download or read book How Learning Works written by Susan A. Ambrose and published by John Wiley & Sons. This book was released on 2010-04-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for How Learning Works "How Learning Works is the perfect title for this excellent book. Drawing upon new research in psychology, education, and cognitive science, the authors have demystified a complex topic into clear explanations of seven powerful learning principles. Full of great ideas and practical suggestions, all based on solid research evidence, this book is essential reading for instructors at all levels who wish to improve their students' learning." —Barbara Gross Davis, assistant vice chancellor for educational development, University of California, Berkeley, and author, Tools for Teaching "This book is a must-read for every instructor, new or experienced. Although I have been teaching for almost thirty years, as I read this book I found myself resonating with many of its ideas, and I discovered new ways of thinking about teaching." —Eugenia T. Paulus, professor of chemistry, North Hennepin Community College, and 2008 U.S. Community Colleges Professor of the Year from The Carnegie Foundation for the Advancement of Teaching and the Council for Advancement and Support of Education "Thank you Carnegie Mellon for making accessible what has previously been inaccessible to those of us who are not learning scientists. Your focus on the essence of learning combined with concrete examples of the daily challenges of teaching and clear tactical strategies for faculty to consider is a welcome work. I will recommend this book to all my colleagues." —Catherine M. Casserly, senior partner, The Carnegie Foundation for the Advancement of Teaching "As you read about each of the seven basic learning principles in this book, you will find advice that is grounded in learning theory, based on research evidence, relevant to college teaching, and easy to understand. The authors have extensive knowledge and experience in applying the science of learning to college teaching, and they graciously share it with you in this organized and readable book." —From the Foreword by Richard E. Mayer, professor of psychology, University of California, Santa Barbara; coauthor, e-Learning and the Science of Instruction; and author, Multimedia Learning

Optimization in Public Transportation

Author : Anita Schöbel
Publisher : Springer Science & Business Media
ISBN 13 : 0387366431
Total Pages : 267 pages
Book Rating : 4.3/5 (873 download)

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Book Synopsis Optimization in Public Transportation by : Anita Schöbel

Download or read book Optimization in Public Transportation written by Anita Schöbel and published by Springer Science & Business Media. This book was released on 2007-01-27 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops models, results and algorithms for optimizing public transportation from a customer-oriented viewpoint. The methods used are based on graph-theoretic approaches and integer programming. The specific topics are all motivated by real-world examples which occurred in practical projects: location of stops, management of delay, and tariff zone design. An appendix summarizes some of the basics of optimization needed to interpret the material in the book.

Improving Healthcare Quality in Europe Characteristics, Effectiveness and Implementation of Different Strategies

Author : OECD
Publisher : OECD Publishing
ISBN 13 : 9264805907
Total Pages : 447 pages
Book Rating : 4.2/5 (648 download)

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Book Synopsis Improving Healthcare Quality in Europe Characteristics, Effectiveness and Implementation of Different Strategies by : OECD

Download or read book Improving Healthcare Quality in Europe Characteristics, Effectiveness and Implementation of Different Strategies written by OECD and published by OECD Publishing. This book was released on 2019-10-17 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, developed by the Observatory together with OECD, provides an overall conceptual framework for understanding and applying strategies aimed at improving quality of care. Crucially, it summarizes available evidence on different quality strategies and provides recommendations for their implementation. This book is intended to help policy-makers to understand concepts of quality and to support them to evaluate single strategies and combinations of strategies.

Computers in Railways XIII

Author : C. A. Brebbia
Publisher : WIT Press
ISBN 13 : 1845646169
Total Pages : 781 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computers in Railways XIII by : C. A. Brebbia

Download or read book Computers in Railways XIII written by C. A. Brebbia and published by WIT Press. This book was released on 2013 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: Containing the proceedings of the Thirteenth International Conference on Design and Operation in Railway Engineering, this book presents the latest developments in the use of computer-based techniques in the design and operation of railways. The COMPRAIL conference series serves as the forum for major advances in this important field. The book covers such topics as Advanced Train Control; Planning; Timetable Planning; Rescheduling; Risk Management; Safety and Security; Maglev and High-speed Railways; Traffic Control and Safety of High-speed Railways; Metro and Other Transit Systems; Communications and Signalling; Energy Supply and Consumption; Driverless and Automatic Train Operation; Operations Quality; Computer Techniques and Simulations; Railway Vehicle Dynamics; Dynamics and Wheel/Rail Interface; Monitoring and Maintenance; Crack, Damage and Fatigue Problems.The book will be of interest to railway managers, consultants, railway engineers (including signal and control engineers), designers of advanced train control systems and computer specialists

Basic Methods of Policy Analysis and Planning

Author : Carl Patton
Publisher : Routledge
ISBN 13 : 1317350006
Total Pages : 481 pages
Book Rating : 4.3/5 (173 download)

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Book Synopsis Basic Methods of Policy Analysis and Planning by : Carl Patton

Download or read book Basic Methods of Policy Analysis and Planning written by Carl Patton and published by Routledge. This book was released on 2015-08-26 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated in its 3rd edition, Basic Methods of Policy Analysis and Planning presents quickly applied methods for analyzing and resolving planning and policy issues at state, regional, and urban levels. Divided into two parts, Methods which presents quick methods in nine chapters and is organized around the steps in the policy analysis process, and Cases which presents seven policy cases, ranging in degree of complexity, the text provides readers with the resources they need for effective policy planning and analysis. Quantitative and qualitative methods are systematically combined to address policy dilemmas and urban planning problems. Readers and analysts utilizing this text gain comprehensive skills and background needed to impact public policy.

The Urban Rail Development Handbook

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

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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.

Logistics Management and Strategy

Author : Alan Harrison
Publisher : Pearson UK
ISBN 13 : 1292183721
Total Pages : 607 pages
Book Rating : 4.2/5 (921 download)

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Book Synopsis Logistics Management and Strategy by : Alan Harrison

Download or read book Logistics Management and Strategy written by Alan Harrison and published by Pearson UK. This book was released on 2019 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Operations research models for scheduling railway infrastructure maintenance

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

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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.

Computers in Railways X

Author : John J. Allan
Publisher : WIT Press
ISBN 13 : 1845641779
Total Pages : 1009 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computers in Railways X by : John J. Allan

Download or read book Computers in Railways X written by John J. Allan and published by WIT Press. This book was released on 2006 with total page 1009 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book updates the use of computer-based techniques, promoting their general awareness throughout the business management, design, manufacture and operation of railways and other advanced passenger, freight and transit systems. Including papers from the Tenth International Conference on Computer System Design and Operation in the Railway and Other Transit Systems, the book will be of interest to railway management, consultants, railway engineers (including signal and control engineers), designers of advanced train control systems and computer specialists. Themes of interest include: Planning; Human Factors; Computer Techniques, Management and languages; Decision Support Systems; Systems Engineering; Electromagnetic Compatibility and Lightning; Reliability, Availability, Maintainability and Safety (RAMS); Freight; Advanced Train Control; Train Location; CCTV/Communications; Operations Quality; Timetables; Traffic Control; Global Navigation using Satellite Systems; Online Scheduling and Dispatching; Dynamics and Wheel/Rail Interface; Power Supply; Traction and Maglev; Obstacle Detection and Collision Analysis; Railway Security.

AI and education

Author : Miao, Fengchun
Publisher : UNESCO Publishing
ISBN 13 : 9231004476
Total Pages : 50 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis AI and education by : Miao, Fengchun

Download or read book AI and education written by Miao, Fengchun and published by UNESCO Publishing. This book was released on 2021-04-08 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial Intelligence (AI) has the potential to address some of the biggest challenges in education today, innovate teaching and learning practices, and ultimately accelerate the progress towards SDG 4. However, these rapid technological developments inevitably bring multiple risks and challenges, which have so far outpaced policy debates and regulatory frameworks. This publication offers guidance for policy-makers on how best to leverage the opportunities and address the risks, presented by the growing connection between AI and education. It starts with the essentials of AI: definitions, techniques and technologies. It continues with a detailed analysis of the emerging trends and implications of AI for teaching and learning, including how we can ensure the ethical, inclusive and equitable use of AI in education, how education can prepare humans to live and work with AI, and how AI can be applied to enhance education. It finally introduces the challenges of harnessing AI to achieve SDG 4 and offers concrete actionable recommendations for policy-makers to plan policies and programmes for local contexts. [Publisher summary, ed]

Systematic Approaches to a Successful Literature Review

Author : Andrew Booth
Publisher : SAGE
ISBN 13 : 1473952816
Total Pages : 376 pages
Book Rating : 4.4/5 (739 download)

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Book Synopsis Systematic Approaches to a Successful Literature Review by : Andrew Booth

Download or read book Systematic Approaches to a Successful Literature Review written by Andrew Booth and published by SAGE. This book was released on 2016-05-28 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Showing you how to take a structured and organized approach to a wide range of literature review types, this book helps you to choose which approach is right for your research. Packed with constructive tools, examples, case studies and hands-on exercises, the book covers the full range of literature review techniques. New to This Edition: Full re-organization takes you step-by-step through the process from beginning to end New chapter showing you how to choose the right method for your project Practical guidance on integrating qualitative and quantitative data New coverage of rapid reviews Comprehensive inclusion of literature review tools, including concept analysis, scoping and mapping With an emphasis on the practical skills, this guide is essential for any student or researcher needing to get from first steps to a successful literature review.

Vocabulary Instruction

Author : Edward J. Kame'enui
Publisher : Guilford Press
ISBN 13 : 1462504000
Total Pages : 370 pages
Book Rating : 4.4/5 (625 download)

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Book Synopsis Vocabulary Instruction by : Edward J. Kame'enui

Download or read book Vocabulary Instruction written by Edward J. Kame'enui and published by Guilford Press. This book was released on 2012-05-10 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly regarded work brings together prominent authorities on vocabulary teaching and learning to provide a comprehensive yet concise guide to effective instruction. The book showcases practical ways to teach specific vocabulary words and word-learning strategies and create engaging, word-rich classrooms. Instructional activities and games for diverse learners are brought to life with detailed examples. Drawing on the most rigorous research available, the editors and contributors distill what PreK-8 teachers need to know and do to support all students' ongoing vocabulary growth and enjoyment of reading. New to This Edition*Reflects the latest research and instructional practices.*New section (five chapters) on pressing current issues in the field: assessment, authentic reading experiences, English language learners, uses of multimedia tools, and the vocabularies of narrative and informational texts.*Contributor panel expanded with additional leading researchers.

Qualitative Research Practice

Author : Jane Ritchie
Publisher : SAGE
ISBN 13 : 144623584X
Total Pages : 356 pages
Book Rating : 4.4/5 (462 download)

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Book Synopsis Qualitative Research Practice by : Jane Ritchie

Download or read book Qualitative Research Practice written by Jane Ritchie and published by SAGE. This book was released on 2003-02-19 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'An excellent introduction to the theoretical, methodological and practical issues of qualitative research... they deal with issues at all stages in a very direct, clear, systematic and practical manner and thus make the processes involved in qualitative research more transparent' - Nyhedsbrev 'This is a "how to" book on qualitative methods written by people who do qualitative research for a living.... It is likely to become the standard manual on all graduate and undergraduate courses on qualitative methods' - Professor Robert Walker, School of Sociology and Social Policy, University of Nottingham What exactly is qualitative research? What are the processes involved and what can it deliver as a mode of inquiry? Qualitative research is an exciting blend of scientific investigation and creative discovery. When properly executed, it can bring a unique understanding of people's lives which in turn can be used to deepen our understanding of society. It as a skilled craft used by practitioners and researchers in the 'real world'; this textbook illuminates the possibilities of qualitative research and presents a sequential overview of the process written by those active in the field. Qualitative Research Practice: - Leads the student or researcher through the entire process of qualitative research from beginning to end - moving through design, sampling, data collection, analysis and reporting. - Is written by practising researchers with extensive experience of conducting qualitative research in the arena of social and public policy - contains numerous case studies. - Contains plenty of pedagogical material including chapter summaries, explanation of key concepts, reflective points for seminar discussion and further reading in each chapter - Is structured and applicable for all courses in qualitative research, irrespective of field. Drawn heavily on courses run by the Qualitative Unit at the National Centre for Social Research, this textbook should be recommended reading for students new to qualitative research across the social sciences.