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Optimal Trajectory Planning and Train Schedulin...
112,98 € *
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This book contributes to making urban rail transport fast, punctual and energy-efficient -significant factors in the importance of public transportation systems to economic, environmental and social requirements at both municipal and national levels. It proposes new methods for shortening passenger travel times and for reducing energy consumption, addressing two major topics: (1) train trajectory planning: the authors derive a nonlinear model for the operation of trains and present several approaches for calculating optimal and energy-efficient trajectories within a given schedule, and (2) train scheduling: the authors develop a train scheduling model for urban rail systems and optimization approaches with which to balance total passenger travel time with energy efficiency and other costs to the operator.Mixed-integer linear programming and pseudospectral methods are among the new methods proposed for single- and multi-train systems for the solution of the nonlinear trajectory planning problem which involves constraints such as varying speed restrictions and maximum traction/braking force. Signaling systems and their effects are also accounted for in the trajectory planning model.Origin-destination passenger demand is included in the model formulation for train scheduling. Iterative convex programming and efficient bi-level approaches are utilized in the solution of the train-scheduling problem. In addition, the splitting rates and route choices of passengers are also optimized from the system point of view.The problems and solutions described in Optimal Trajectory Planning and Train Scheduling for Urban Rail Transit Systems will interest researchers studying public transport systems and logistics whether from an academic or practitioner background as well as providing a real application for anybody studying optimization theory and predictive control.

Anbieter: Dodax
Stand: 29.01.2020
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Algorithmic decision support for train scheduli...
45,80 € *
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This thesis addresses the problem of constructing train schedules, in particular for large and highly utilised railway networks. In the thesis, a comprehensive approach from the commercial description of intended train services to a conflict-free detailed schedule for a whole day is developed. The methodology follows a divide-and-conquer strategy based on three description levels: the service intention, the macroscopic timetable, and the microscopic schedule. The levels are interfaced in such a way that planners have the possibility of intervening into the specifications on every level, and enabling a feedback loops for testing different alternative scenarios.The starting point of the approach is the construction of an appropriate structure for describing the intended train services, including periodicity information. This partial periodic Service Intention (ppSI) contains the commercial offer that a railway company would like to tender to the customers during a day. The developed ppSI can describe commercial railway offers with partial periodic structure in a compact form and can exploit these effectively in the train scheduling process. This is done with an equivalent projection onto a single period time, resulting in an augmented periodic problem. ThlS augmented periodic timetabling problem is then solved first 9lobally on an aggregated topology with a simplified safety model (macroscoplC level), and subsequently, locally refined by considering more details of the railway infrastructure and train dynamics (microscopic level). Finally, the generated periodic conflict-free train schedule is rolled out over the complete day to create a conflict-free production plan.The macroscopic level focuses on global interdependencies over the entire network for generating the most important properties of the timetable. A well known model for this description level is the periodic Event scheduling problem (PESP). In this thesis, an extension called Flexible Periodic Event scheduling problem (FPESP) is introduced and applied, allowing for time slots for each event instead of fixed times. Moreover, an extension of the FPESP model is proposed, the Flexbox model, which is a further generalisation of the FPESP that allows to make use of natural dependencies among events in the service intention.

Anbieter: Dodax AT
Stand: 29.01.2020
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Denali Star
29,00 € *
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Denali Star is a passenger and semi-luxury train operated by the Alaska Railroad between the cities of Anchorage and Fairbanks Alaska. It is a seasonal train, only operating between the months of May and September. The Aurora Winter Train operates along the similar route during the rest of the year at a less frequent weekend schedule. The train is very famous for the stunning scenery it passes and is ridden by many tourists visiting the Denali National Park. The train consists of single level coaches and dome cars.

Anbieter: Dodax
Stand: 29.01.2020
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Algorithmic decision support for train scheduli...
45,80 € *
ggf. zzgl. Versand

This thesis addresses the problem of constructing train schedules, in particular for large and highly utilised railway networks. In the thesis, a comprehensive approach from the commercial description of intended train services to a conflict-free detailed schedule for a whole day is developed. The methodology follows a divide-and-conquer strategy based on three description levels: the service intention, the macroscopic timetable, and the microscopic schedule. The levels are interfaced in such a way that planners have the possibility of intervening into the specifications on every level, and enabling a feedback loops for testing different alternative scenarios.The starting point of the approach is the construction of an appropriate structure for describing the intended train services, including periodicity information. This partial periodic Service Intention (ppSI) contains the commercial offer that a railway company would like to tender to the customers during a day. The developed ppSI can describe commercial railway offers with partial periodic structure in a compact form and can exploit these effectively in the train scheduling process. This is done with an equivalent projection onto a single period time, resulting in an augmented periodic problem. ThlS augmented periodic timetabling problem is then solved first 9lobally on an aggregated topology with a simplified safety model (macroscoplC level), and subsequently, locally refined by considering more details of the railway infrastructure and train dynamics (microscopic level). Finally, the generated periodic conflict-free train schedule is rolled out over the complete day to create a conflict-free production plan.The macroscopic level focuses on global interdependencies over the entire network for generating the most important properties of the timetable. A well known model for this description level is the periodic Event scheduling problem (PESP). In this thesis, an extension called Flexible Periodic Event scheduling problem (FPESP) is introduced and applied, allowing for time slots for each event instead of fixed times. Moreover, an extension of the FPESP model is proposed, the Flexbox model, which is a further generalisation of the FPESP that allows to make use of natural dependencies among events in the service intention.

Anbieter: Dodax
Stand: 29.01.2020
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Train Ferry
40,10 € *
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High Quality Content by WIKIPEDIA articles! A train ferry is a ship designed to carry railway vehicles. Typically, one level of the ship is fitted with railway tracks, and the vessel has a door at the front and/or rear to give access to the wharves. In the United States, train ferries are referred to as "car ferries". The wharf (sometimes called a "slip") has a ramp, linkspan or "apron", balanced by weights, that connects the railway proper to the ship, allowing for the water level to rise and fall with the tides. For an example of a specialized slip to receive railcars see ferry slip.

Anbieter: Dodax AT
Stand: 29.01.2020
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Narrow Margin
7,99 € *
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L.A. District Attorney Caulfield (Gene Hackman) travels to a remote cabin in Canada to retrieve Carol Hunnicutt (Anne Archer), a witness reluctant to testify in a top level mob slaying. But the killers have also discovered her whereabouts, forcing Caulfield and Hunnicutt to find refuge on a Vancover-bound train with their assailants right behind. For the next twenty hours, a deadly game of cat and mouse ensues, pitting the D.A. and his star witness against two men whilst aboard a train speeding through the Canadian Rockies., L.A. District Attorney Caulfield (Gene Hackman) travels to a remote cabin in Canada to retrieve Carol Hunnicutt (Anne Archer), a witness reluctant to testify in a top level mob slaying. But the killers have also discovered her whereabouts, forcing Caulfield and Hunnicutt to find refuge on a Vancover-bound train with their assailants right behind. For the next twenty hours, a deadly game of cat and mouse ensues, pitting the D.A. and his star witness against two men whilst aboard a train speeding through the Canadian Rockies.Special Features:None listed.

Anbieter: Zavvi
Stand: 29.01.2020
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Optimal Trajectory Planning and Train Schedulin...
112,98 € *
ggf. zzgl. Versand

This book contributes to making urban rail transport fast, punctual and energy-efficient -significant factors in the importance of public transportation systems to economic, environmental and social requirements at both municipal and national levels. It proposes new methods for shortening passenger travel times and for reducing energy consumption, addressing two major topics: (1) train trajectory planning: the authors derive a nonlinear model for the operation of trains and present several approaches for calculating optimal and energy-efficient trajectories within a given schedule, and (2) train scheduling: the authors develop a train scheduling model for urban rail systems and optimization approaches with which to balance total passenger travel time with energy efficiency and other costs to the operator.Mixed-integer linear programming and pseudospectral methods are among the new methods proposed for single- and multi-train systems for the solution of the nonlinear trajectory planning problem which involves constraints such as varying speed restrictions and maximum traction/braking force. Signaling systems and their effects are also accounted for in the trajectory planning model.Origin-destination passenger demand is included in the model formulation for train scheduling. Iterative convex programming and efficient bi-level approaches are utilized in the solution of the train-scheduling problem. In addition, the splitting rates and route choices of passengers are also optimized from the system point of view.The problems and solutions described in Optimal Trajectory Planning and Train Scheduling for Urban Rail Transit Systems will interest researchers studying public transport systems and logistics whether from an academic or practitioner background as well as providing a real application for anybody studying optimization theory and predictive control.

Anbieter: Dodax AT
Stand: 29.01.2020
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Raising Moral Development: An Ethical Training ...
50,40 € *
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The connection between moral development and good ethical judgement has long been linked to education. Although research has proven a correlation between the level of education a person completes with the level of Kohlberg's higher stages of Moral Development, there is currently a lack of traning models specifically focused on raising individuals ability to make and act upon solid ethical decisions. This book outlines a model that is used to train counselors and psychologists. Rest's Defining Issues Test is used to measure the effectiveness of the training in raising the moral development level of the participants. The Defining Issues Test (DIT) uses Kohlberg's Stages of Moral Development to measure participants' level of moral functioning. This book includes: A review of the literature surrounding ethical training models, Presents two different ethical decision making models, An outline of a traning model along with handouts and lesson plans, a description of the statistics used and the results of the training model when used to train master's level counselors in training. Suggestions for further study concludes the book.

Anbieter: Dodax AT
Stand: 29.01.2020
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GNSS for Rail Transportation
109,98 € *
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This book proposes a general methodology to introduce Global Navigation Satellite System (GNSS) integrity, starting from a rigorous mathematical description of the problem. It highlights the major issues that designers need to resolve during the development of GNSS-based systems requiring a certain level of confidence on the position estimates. Although it follows a general approach, the final chapters focus on the application of GNSS integrity to rail transportation, as an example. By describing the main requirements in the context of train position function, one of which is the safe function of any train control system, it shows the critical issues associated with the concept of safe position integrity. In particular, one case study clarifies the key differences between the avionic domain and the railway domain related to the application of GNSS technologies, and identifies a number of railway-signaling hazards linked with the use of such technology. Furthermore, it describes various railway-signaling techniques to mitigate such hazards to prepare readers for the future evolution of train control systems, also based on the GNSS technology. This unique book offers a valuable reference guide for engineers and researchers in the fields of satellite navigation and rail transportation.

Anbieter: Dodax
Stand: 29.01.2020
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