Rescheduling Timetable Optimization Of Trains Along The Us Shared Use Corridors
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| Author | : Pasi T. Lautala |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : Railroads |
| ISBN | : |
"The majority of intercity passenger and commuter rail services in the U.S. operate on the shared-use corridors with freight rail services. These types of operations tend to be challenging for efficient capacity utilization and reliability due to the high heterogeneity of trains. As passenger traffic seeks higher speed and more frequencies, the situation is likely to be exacerbated. There are two main approaches to address the challenge, either by applying new capital investment (upgrading infrastructure components), or by modifying operational characteristics and parameters of the rail services (e.g. rescheduling and timetable management techniques). This project will build on current work to apply European and U.S. simulations software on shared use corridors. The objective is to develop a capacity parametric model that uses train timetable and optimization techniques to supplement rail operations simulation analysis toward improved capacity utilization levels of a given corridor. This study will focus on two existing shared use corridors. It will continue the work already initiated on Baltimore-Washington section of the Northeast Corridor and incorporate a segment of Michigan HSR corridor. The study will be based on actual infrastructure, signaling and train characteristics and will use outputs of the European simulation packages (Railsys and/or Opentrack) as well as Rail Traffic Controller (RTC), a common simulation package in the U.S., to evaluate different traffic scenarios and operational variables of the proposed model."--
| Author | : Ahmadreza Talebian |
| Publisher | : |
| Total Pages | : 37 |
| Release | : 2015 |
| Genre | : High speed trains |
| ISBN | : |
| Author | : Zhipeng Huang |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2023 |
| Genre | : |
| ISBN | : |
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.
| Author | : Mei-Cheng Shih |
| Publisher | : |
| Total Pages | : 71 |
| Release | : 2017 |
| Genre | : Railroads |
| ISBN | : |
"A railway line has finite capacity to provide transportation of goods and people at an acceptable level of service. The capacity of a particular route segment to satisfy railway traffic demand is largely a function of the track infrastructure layout and traffic control system. The amount of railway capacity consumed by a given demand for freight and passenger transportation is primarily a function of three factors: the number of trains required to transport the demanded freight and passenger volumes; the level-of-service requirements of each type of train; and complex interactions between different types of trains arising from the operating plan over a particular route segment. While much previous research has documented the relationship between infrastructure, traffic control and train volume, understanding the relationships between operating plans, train-type interactions and train-type-specific levels of service is still a knowledge gap. This research explores these latter factors in more detail and develops new capacity evaluation and infrastructure planning techniques to account for their effects. The first phase of this research will use RTC simulation and analytical techniques to develop a capacity evaluation process for shared corridors with multiple types of trains that each have their own level-of-service requirements. The developed process will be applied to a representative corridor to draw general conclusions about the impact of passenger trains on shared corridors with different mixtures of freight train types. The second phase of this research will use analytical techniques and RTC simulation to develop a new parametric model for the distribution of train delays on a single-track shared corridor. The third phase will develop an analytical screening tool for identifying appropriate infrastructure and operating solutions to increase capacity of shared corridors. The final phase will develop an optimization model for selecting siding locations on single-track shared corridors with structured timetable operations."--
| Author | : |
| Publisher | : |
| Total Pages | : 676 |
| Release | : 1982 |
| Genre | : Administrative law |
| ISBN | : |
The Code of Federal Regulations is the codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.
| Author | : Philip G. Howlett |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 315 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1447130847 |
Rail is potentially a very efficient form of transport, but must be convenient, reliable and cost-effective to compete with road and air transport. Optimal control can be used to find energy-efficient driving strategies for trains. This book describes the train control problem and shows how a solution was found at the University of South Australia. This research was used to develop the Metromiser system, which provides energy-efficient driving advice on suburban trains. Since then, this work has been modified to find practical driving strategies for long-haul trains. The authors describe the history of the problem, reviewing the basic mathematical analysis and relevant techniques of constrained optimisation. They outline the modelling and solution of the problem and finally explain how the fuel consumption can be minimised for a journey, showing the effect of speed limits and track gradients on the optimal driving strategy.
| Author | : Thomas Schlechte |
| Publisher | : Sudwestdeutscher Verlag Fur Hochschulschriften AG |
| Total Pages | : 248 |
| Release | : 2012-03 |
| Genre | : |
| ISBN | : 9783838132228 |
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.
| Author | : Ingo A. Hansen |
| Publisher | : |
| Total Pages | : 330 |
| Release | : 2014-09-12 |
| Genre | : |
| ISBN | : 9783777104621 |
| Author | : Kim Golombisky |
| Publisher | : CRC Press |
| Total Pages | : 612 |
| Release | : 2017-02-17 |
| Genre | : Computers |
| ISBN | : 1351668765 |
White Space Is Not Your Enemy is a practical graphic design and layout guide that introduces concepts and practices necessary for producing effective visual communication across a variety of formats—from web to print. Sections on Gestalt theory, color theory, and WET layout are expanded to offer more in-depth content on those topics. This new edition features new covering current trends in web design—Mobile-first, UI/UX design, and web typography—and how they affect a designer’s approach to a project. The entire book will receive an update using new examples and images that show a more diverse set of graphics that go beyond print and web and focus on tablet, mobile and advertising designs.
| Author | : Jörn Pachl |
| Publisher | : |
| Total Pages | : 289 |
| Release | : 2018 |
| Genre | : |
| ISBN | : 9780971991590 |
