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Author : Yong Cui
Publisher : BoD – Books on Demand
ISBN 13 : 383917595X
Total Pages : 178 pages
Book Rating : 4.8/5 (391 download)
Download or read book Neues verkehrswissenschaftliches Journal NVJ - Ausgabe 4 written by Yong Cui and published by BoD – Books on Demand. This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Weiting Zhao
Publisher : BoD – Books on Demand
ISBN 13 : 3746035015
Total Pages : 142 pages
Book Rating : 4.7/5 (46 download)
Download or read book Neues verkehrswissenschaftliches Journal - Ausgabe 22 written by Weiting Zhao and published by BoD – Books on Demand. This book was released on 2018-01-23 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increasing traffic demand and limited infrastructure expansion, railway operation becomes more susceptible to the operational disturbances. In order to ensure a robust railway operation, a proactive dispatching algorithm in dynamic circumstances under the consideration of random disturbances is necessary. In this study, an operational risk map will be firstly produced: by simulating considerable amount of disturbed scenarios generated in a Monte-Carlo scheme and calculating the corresponding expected negative impacts, different levels of operational risk will be assigned to each block section in the investigated network. Within a rolling time horizon framework, conflicts are detected with the inclusion of risk-oriented disturbances in each block section, and the near-optimal dispatching solutions are calculated by using Tabu search algorithm. Finally, three indicators including total weighted waiting time, the number of relative reordering and average absolute retiming, are chosen to testify the effectiveness and advantages of the proposed dispatching algorithm. The sensitivity analysis of dispatching-related parameters is conducted afterwards to investigate the most appropriate relevant parameters for the specific studied area. The proposed algorithms are expected to be capable of automatically producing near-optimal and robust dispatching solutions with sufficient punctuality achieved.
Download or read book Neues verkehrswissenschaftliches Journal written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ullrich Martin
Publisher : BoD – Books on Demand
ISBN 13 : 3732298051
Total Pages : 122 pages
Book Rating : 4.7/5 (322 download)
Download or read book Neues verkehrswissenschaftliches Journal NVJ - Ausgabe 7 written by Ullrich Martin and published by BoD – Books on Demand. This book was released on 2014-03-14 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leistungsuntersuchungen im spurgeführten Verkehr spielen bei der Planung der Infrastruktur sowie des Betriebsprogramms und beim Vergleich verschiedener Dispositionsmaßnahmen eine wichtige Rolle und stellen einen Bezug zur Betriebsqualität her. Der als Ergebnis von Leistungsuntersuchungen bestimmte optimale Leistungsbereich beschreibt als wichtige globale Kenngröße das Intervall, in dem die Leistungsanforderungen einer ausreichenden Wirtschaftlichkeit und einer hinreichenden Qualität entsprechen. Die stetige Wartezeitfunktion sowie die zu deren Bestimmung notwendige maximale Leistungsfähigkeit die sind zwei grundlegende Voraussetzungen zur Bestimmung des optimalen Leistungsbereichs. Mit den in dieser Arbeit neu entwickelten Methoden und den daraus abgeleiteten Algorithmen werden die bisherigen Ansätze zur Approximation der Wartezeitfunktion aus einzelnen Datenpunkten systematisch algorithmisch weiterentwickelt und in der Folge die Aussagekraft des optimalen Leistungsbereichs signifikant verbessert.
Author : David Camacho Alcocer
Publisher : BoD – Books on Demand
ISBN 13 : 375346306X
Total Pages : 210 pages
Book Rating : 4.7/5 (534 download)
Download or read book Track Data-Oriented Maintenance Intervention Limit Determination for Ballasted Light Rail Tracks through Multibody Simulations written by David Camacho Alcocer and published by BoD – Books on Demand. This book was released on 2021-07-13 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light rail trains (LRT) are an important part of public transport but due to perceived high life-cycle costs are not always considered suitable. Life cycle cost reduction might be achieved through a knowledge-based maintenance management rather than just on experience. This work develops limits of maintenance and renewal of LRT systems based on vehicle reactions to the current track quality through measured data, multibody simulations and track geometry indices. An approach based on knowledge would lead to a track condition which allows a safe, comfortable, and under an appropriate maintenance strategy, economically profitable operation.
Author : Di Liu
Publisher :
ISBN 13 : 9783744860413
Total Pages : pages
Book Rating : 4.8/5 (64 download)
Download or read book Neues Verkehrswissenschaftliches Journal - Ausgabe 19 written by Di Liu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
