Download or read book Analysis of Capacity Pricing and Allocation Mechanisms in Shared Railway Systems written by Maite Peña Alcaraz and published by . This book was released on 2015 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last 15 years, the use of rail infrastructure by different train operating companies (shared railway system) has been proposed as a way to improve infrastructure utilization and to increase efficiency in the railway industry. Shared use requires coordination between the infrastructure manager and multiple train operators. Such coordination requires capacity planning mechanisms that determine which trains can access the infrastructure at each time, capacity allocation, and the access charges they have to pay, capacity pricing. The objective of this thesis is to contribute to the field of shared railway systems coordination by 1) developing a framework to analyze the performance of shared railway systems under alternative capacity pricing and allocation mechanisms, and 2) using this framework to understand the implications of representative capacity pricing and allocation mechanisms in representative shared railway systems. There are strong interactions between capacity planning and infrastructure operations in the railway industry; the operations on the infrastructure determine the available capacity in the system. As a consequence, the framework developed in this thesis to evaluate the performance of shared railway systems under alternative capacity pricing and allocation consists of two models: 1) a train operator model and 2) an infrastructure manager model. The train operator model is a financial model that anticipates how train operators would respond to the capacity pricing and allocation mechanisms and determine their demand for infrastructure use. The infrastructure manager model is a network optimization model that determines the optimal train timetable (infrastructure manager's decisions) that accommodates the train operators' demands for scheduling trains, considering the topology of the system, safety constraints, and other technical aspects of the infrastructure for shared railway systems. To be able to solve the train timetabling optimization problem in meaningful instances, this thesis develops a novel approximate dynamic programming algorithm based on linear programming that extends previous algorithms proposed in the literature to effectively solve large network optimization problems. This thesis then uses the train operator model to compare the operational decisions of train operators in shared railway systems with the operational decisions of even-handed integrated railway companies. We show that train operators in shared railway system access charges reflect variable infrastructure manager's costs to operate trains on the infrastructure. We also identify two cases in which the train operators may have incentives to deviate from the integrated railway systems' operational decisions: 1) when the infrastructure manager needs to recover part of the infrastructure management fixed costs, or 2) when the railway system is congested. This motivates the choice of the two case studies of this thesis, one based on the Central Corridor in Tanzania, and the other one based on the Northeast Corridor in the US. We then show how to use the framework proposed in this thesis to analyze the trade-offs associated with the use of alternative mechanisms in these two cases. To our knowledge, this is the first effort to compare alternative mechanisms to price and allocate capacity in the same shared railway system. The results of this thesis show that there are important trade-offs associated with each mechanism and none of them is superior to the other on all dimensions. We thus recommend that system stakeholders carefully analyze the implications of alternative capacity pricing and allocation mechanisms before locking the system into one of them. This is particularly important today since several countries are currently restructuring their railway sector to allow shared use. We claim that the improved understanding of the system performance gained with the framework proposed in this thesis is important to be able to design adequate capacity pricing and allocation mechanisms that can mitigate the coordination problems of shared railway systems while maintaining the benefits of shared infrastructure in the railway industry.
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.
Download or read book Track Access Charges in Freight Transport written by Justina Hudenko and published by Cambridge Scholars Publishing. This book was released on 2019-06-10 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given that there are still many unclear concepts, mutual contradictions and imperfections in methodologies used in the field of track access charging, this book acts as a communication tool for researchers, and discusses these charges with regard to rail freight competitiveness. It addresses four main topics: namely, the technical features of freight transportation and the costs incurred; the impact of incoherence and volatility of freight traffic volume; the market response to the track access charge level; and the influence of transport policy and state subsidies. The text will appeal to infrastructure managers around the world, especially those in networks where there is an intention either to facilitate the shift of freight to railways or to develop rail freight corridors. It illustrates that there are significant differences in the causation of costs on passenger and freight railways, and raises important questions that must be considered when communicating with consumers and the state.
Download or read book Analysis of Commuter Rail Costs and Cost Allocation Methods written by Daniel Dornan and published by . This book was released on 1983 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions on Computational Collective Intelligence XXXIV written by Ngoc Thanh Nguyen and published by Springer Nature. This book was released on 2019-10-31 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: These transactions publish research in computer-based methods of computational collective intelligence (CCI) and their applications in a wide range of fields such as performance optimization in IoT, big data, reliability, privacy, security, service selection, QoS and machine learning. This thirty-fourth issue contains 12 selected papers which present new findings and innovative methodologies as well as discuss issues and challenges in the field of collective intelligence in group decision making with special emphasize given to voting theory, power indices and graphs while addressing elections, social choices, IoT and allocation algorithms.
Download or read book Cost allocation Methods for Commuter Intercity and Freight Rail Operations on Shared use Rail Systems and Corridors written by and published by . This book was released on 2007 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This digest presents the results of NCHRP Project 20-65 (Task 12), 'Cost-allocation methods for commuter, intercity, and freight rail operations on shared-use rail systems and corridors.' The research was conducted by AERCOM Consult, Inc."--p. 1.
Download or read book Cost allocation Methods for Commuter Intercity and Freight Rail Operations on Shared use Rail Systems and Corridors written by National Cooperative Highway Research Program and published by . This book was released on 2007 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Logistics written by Ana Paias and published by Springer. This book was released on 2016-08-15 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Conference on Computational Logistics, ICCL 2016, held in Lisbon, Portugal, in September 2016. The 29 papers presented in this volume were carefully reviewed and selected for inclusion in the book. They are organized in topical sections entitled: container terminals and maritime transportation; intermodal transport; location and routing; (general) logistics and supply chain management.
Download or read book Proceedings written by Transportation Research Forum and published by . This book was released on 1986 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Railway Reform and Charges for the Use of Infrastructure written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2005-11-16 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains how barriers to growth in rail freight transport across Europe can be overcome. It recommends a simple set of charges that create incentives for management and planning of train operations across national borders.
Download or read book Risk Assessment and Management of Water Conservancy Projects written by Wei Ge and published by Frontiers Media SA. This book was released on 2023-12-27 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Rail Capacity Crunch written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Railroads and published by . This book was released on 2006 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Railway Track Allocation written by Thomas Schlechte and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2012-03 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is about mathematical optimization for the efficient use of railway infrastructure. We address the optimal allocation of the available railway track capacity - the track allocation problem. This track allocation problem is a major challenge for a railway company, independent of whether a free market, a private monopoly, or a public monopoly is given. Planning and operating railway transportation systems is extremely hard due to the combinatorial complexity of the underlying discrete optimization problems, the technical intricacies, and the immense sizes of the problem instances. Mathematical models and optimization techniques can result in huge gains for both railway customers and operators, e.g., in terms of cost reductions or service quality improvements. We tackle this challenge by developing novel mathematical models and associated innovative algorithmic solution methods for large scale instances. This allows us to produce for the first time reliable solutions for a real world instance, i.e., the Simplon corridor in Switzerland.
Download or read book Political and Economic Analysis of State Owned Enterprise Reform written by Huiming Zhang and published by Routledge. This book was released on 2021-07-29 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: In revisiting the forty year history of reforms to China’s state-owned enterprises (SOE), the book assesses the experiences of this process of reform and scrutinizes how this has helped advance the country’s economy overall. The author finds that China’s SOE reform not only commits to institutional innovation within the corporation in terms of operating mechanisms, management structure, legal organization and the economic system of the enterprise; but that it is also underpinned by a series of policies that highlight an increasing market orientation. The measures have given rise to a benign interaction between enterprise reform and market development, while switching the SOE’s role from appendages of government organs under a planned economic system to more autonomous entities that integrate public ownership and the market economy. In this regard, SOE reform’s success in constructing a modern enterprise system serves as the micro-foundation and core of an improved socialist market economic system. The book will appeal to academics and students interested in political economy and the Chinese economy, with particular reference to SOE reform and the recent economic transition in China.
Download or read book OECD Journal of Competition Law and Policy written by Organisation for Economic Co-operation and Development and published by . This book was released on 2006 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dulles Corridor Rapid Transit Project written by and published by . This book was released on 2004 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory and Practice of Algorithms in Computer Systems written by Alberto Marchetti-Spaccamela and published by Springer. This book was released on 2011-03-29 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First International ICST Conference on Theory and Practice of Algorithms in (Computer) Systems, TAPAS 2011, held in Rome, Italy, in April 2011. The 25 papers presented, including three short papers by invited speakers, were carefully reviewed and selected from 45 submissions. The papers all feature original research in the design, implementation and evaluation of algorithms with special focus on algorithms for combinatorial optimization problems, and to real-world applications, engineering and experimental analysis of algorithms - thus fostering the cooperation among researchers in computer science, networking, discrete mathematics, mathematical programming and operations research.
