Neues verkehrswissenschaftliches Journal - Ausgabe 18

Neues verkehrswissenschaftliches Journal - Ausgabe 18
Author :
Publisher : BoD – Books on Demand
Total Pages : 190
Release :
ISBN-10 : 9783744840101
ISBN-13 : 3744840107
Rating : 4/5 (107 Downloads)

Book Synopsis Neues verkehrswissenschaftliches Journal - Ausgabe 18 by : Jiajian Liang

Download or read book Neues verkehrswissenschaftliches Journal - Ausgabe 18 written by Jiajian Liang and published by BoD – Books on Demand. This book was released on 2017-08-18 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: A railway system is a complex system. With the assistance of a railway operation control system, railway traffic is managed according to an operation plan. During the operation process, especially in railway networks with complex topology and high traffic flow, disturbances are likely to occur, which may result in severe deviations of train movements from the pre-designed operation plan. Once conflicts have occurred or potential conflicts between trains have been detected, suitable dispatching actions should be executed to minimize the negative impacts of the disturbances. In order to support dispatchers, a dispatching optimization algorithm was developed in this dissertation. In the development of dispatching models, two aspects need be considered: modelling of railway operation and the dispatching optimization algorithm. The former is indispensable to accurately assess the impact of disturbances, and the latter is employed to find solutions with minimal impact. In order to balance accuracy and computation complexity a multi-scale simulation model was developed in this dissertation. Dispatching optimization is a typical combinatorial optimization problem, and exhaustive search becomes impractical when there is a large set of possible dispatching solutions. To speed up the search, a widely used metaheuristic algorithm-tabu search - was adopted as the basis of the dispatching optimization algorithm. This dissertation addressed both multi-scale simulation and dispatching optimization in railway operation.


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