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Gotowe bibliografie tematyczne / Punctuality / Rozprawy doktorskie

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Rozprawy doktorskie na temat „Punctuality”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Nyström, Birre. "Punctuality and railway maintenance." Licentiate thesis, Luleå, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26559.

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Long and frequent train delays, striking many periodically make headlines. The question is raised: what might be done about it? The on-going deregulation of the Swedish railway, with more actors entering the market, contributes to the question's topicality. In this thesis, problems and symptoms concerning punctuality are described and analysed. Herein, punctuality is defined as the extent to which an event takes place when agreed, for example the agreement between passengers and the company selling the ticket, considering the event that the train arrives at a certain time. The terminology in u

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Nyström, Birre. "Punctuality and railway maintenance /." Luleå : Luleå University of Technology, 2005. http://epubl.luth.se/1402-1757/2005/41.

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Al-Haimi, Abdullah A. "Airline schedule punctuality management." Thesis, Cranfield University, 1991. http://dspace.lib.cranfield.ac.uk/handle/1826/9828.

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Airline schedule punctuality is a complex problem and one of the major concerns of the airline top management. Flight schedule disturbances may occur as delays and/or cancellations. There are many internal and external reasons for delays. These delays may propagate in the aircraft cycles and cause a large schedule disturbance. This may influences passenger satisfaction and airline resources. The objective of this research is to formulate a systematic approach for schedule punctuality which supports management decision making. The punctuality management system is structured to combine all sched

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Beyene, Mignote. "Effect of speed reductions for train punctuality." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18709.

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The rail way sector has been losing market, required increased subsidies and failed to generate anticipated rate of return. Therefore there has been a strong interest to measure the performance of railway operators in terms of punctuality. It is evident that In Norway punctuality shows considerable variation; most of the line being in non-optimal condition, speed is frequently reduced. Such speed reductions are often highlighted as major causes of delays. This master thesis studied the actual delays occurring on the parts of the line between Oslo and Trondheim which have speed restrictions. In

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Krane, Magnus. "Piloting map service for navigating in punctuality analyses for trains." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27339.

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In a complex system such as the Norwegian railway network, there are much thatcan affect a trains punctuality. The undertakers strive to achieve higher and higherpunctuality, while the infrastructure owner, Jernbaneverket, strive for minimaldowntime on the railway network. There is collected much data for analysis aboutthe trains run and the infrastructure, in order to achieve higher punctuality and lessdowntime. The users are able to track down the source of delays and find possibleimprovements on the infrastructure, by analyzing and comparing the different datasets collected.There are many u

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Nyström, Birre. "Aspects of improving punctuality : from data to decision in railway maintenance." Doctoral thesis, Luleå, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26620.

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The increasing demand for transportation and sustainability makes railways attractive. The ongoing deregulation of state-owned railways means that many new organisations are entering the railway sector. Hence, reducing railway delays is increasingly important to many stakeholders, including passengers, freight customers, train operating companies, railway infrastructure managers and society in general. Therefore, the study of punctuality and its improvement is essential. The purpose of the research presented in this thesis is to explore and describe information and requirements related to rail

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SANTOS, DANUSIA TORRES DOS. "INTERCULTURAL TIME: THE CONCEPT OF PUNCTUALITY IN THE BRAZILIAN CULTURE AND THE CONCEPT OF PUNCTUALITY IN THE BRAZILIAN CULTURE AND IN THE TEACHING/LEARNING OF PORTUGUESE AS A SECOND LANGUAGE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10123@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Este trabalho investiga a questão do tempo na cultura brasileira, mais especificamente, o conceito de pontualidade. Identificaram- se e caracterizaram-se aspectos da (im)pontualidade como fenômeno social partilhado por brasileiros residentes na cidade do Rio de Janeiro. Dado o objetivo de se detectarem as regras implícitas do sistema temporal carioca, mostrou-se relevante o contraste entre a autopercepção e a heteropercepção dos informantes, na medida em que, na sua maioria, eles se percebem como individualmente pontuais, em oposição

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Granström, Rikard. "Maintenance for improved punctuality : a study of condition monitoring technology for the Swedish railway sector." Licentiate thesis, Luleå, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25769.

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Banverket (‘the National Swedish Railway Administration') is responsible for management of the infrastructure in Sweden. The main objective of Banverket, stated by the Swedish government, is to assure a cost-effective and long-term provision of transportation for citizens and the business sector. In order to stay competitive with other forms of transportation, the railway needs to be cost-effective and provide reliable service. The reliable service is to a great extent reflected in terms of train punctuality. Railway components in general have a fairly long life, which means that the cost effe

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Granström, Rikard. "Maintenance for improved punctuality : a study of condition monitoring technology for the Swedish railway sector /." Luleå : Luleå University of Technology, 2005. http://epubl.ltu.se/1402-1757/2005/88/.

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Forsberg, Lucas, and Anders Ström. "An analysis of schedule buffer time for increased robustness and cost efficiency in Scandinavian Airlines´traffic program." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131768.

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The airline industry has become more competitive since the introduction of low fare airlines in the 1990s. Thus, requirement of optimized planning is nowadays essential in order to obtain high market shares. The planning behind an airworthy traffic program is complex and includes many different resources, as fleet, crew and maintenance, which have to be synchronized. With a constant risk of unforeseen disruptions and variances in the weather conditions, robustness in form of time buffers are necessary in order to give the system a chance of recovery. Generally, one delay often affects several

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11

Leeman, Gordon E. (Gordon Ellis). "Predicting Attendance and Work Performance from Pre-Entry Attitudes and Self-Reported Behaviors." Thesis, North Texas State University, 1988. https://digital.library.unt.edu/ark:/67531/metadc501108/.

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Absenteeism, lateness, and work performance on the job were investigated. Pre-entry attitudes and self-reported behaviors in the three areas were assessed via RELY, a self-report instrument developed by Kurt Helm (1980). Subjects (N=282) were entry-level stock, bag and clerical personnel for a large grocery store chain. They were 91% Caucasian and 62% male. Results showed significant correlation between three empirically derived scales and criteria: total days absent, total occurrences of lateness, and supervisory performance ratings. However, these findings were considerably weaker under cros

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Alvelöv, Tina, and Elin Hellblom. "Möjligheter till ökad punktlighet med hjälp av förändringar i tågtidtabell : En studie av Västra stambanan." Thesis, KTH, Transportplanering, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277822.

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Based on an initiative to increase the punctuality on Swedish railways in the short term, this study on potential for increased punctuality by adjustments in the train time schedule on The Western Main Line was initiated. This was done by examining alternatives with different adjustments based on today’s timetable. The goal with the study was to increase the punctuality for the highspeed trains on The Western Main Line by five percentage points. Additionally, the study had a purpose of testing if the Swiss concept of Taktfahrplan could be applicable on a Swedish railway. The adjustments of the

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Nilsson, Camilla, and Oskar Öberg. "Undersökning av godstågens punktlighet : En fallstudie enligt DMAIC vid Sweco Rail." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79957.

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Punktlighet är ett viktigt mätetal inom järnvägsindustrin, men också en stor utmaning. Ett övergripande mål i Sverige är att samtliga tåg, både person- och godståg, ska ha en punktlighet på 95% vid slutdestinationen, där tåg som anländer högst fem minuter efter utsatt tid räknas som punktliga. Under 2019 var godstågens punktlighet 77,9%. Försenade godståg innebär stora kostnader i form av kvalitetsavgifter för den part som orsakat förseningen, samhällsekonomiska kostnader samt ett förlorat förtroende för järnvägen där kunder väljer andra transportslag för att garantera att varorna anländer i t

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Högdahl, Johan. "A Simulation-Optimization Approach for Improved Robustness of Railway Timetables." Licentiate thesis, KTH, Transportplanering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263761.

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The timetable is an essential part for the operations of railway traffic, and its quality is considered to have large impact on capacity utilization and reliability of the transport mode. The process of generating a timetable is most often a manual task with limited computer aid, and is known to be a complex planning problem due to inter-train dependencies. These inter-train dependencies makes it hard to manually generate feasible timetables, and also makes it hard to improve a given timetable as new conflicts and surprising effects easily can occur. As the demand for railway traffic is expect

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Jin, Shiguang. "Beitrag zum Ermitteln von Prioritätsstufen zur fahrtkonkreten Beeinflussung von Lichtsignalanlagen und zur Anschlusssicherung im ÖPNV." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99454.

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In der vorliegenden Arbeit wurden Verfahren entwickelt und getestet, um Prioritätsstufen für öffentliche Verkehrsmittel zur fahrtkonkreten Beeinflussung von Lichtsignalanlagen zu ermitteln und darüber hinaus Anschlüsse im öffentlichen Personennahverkehr zu sichern. Die Testergebnisse zeigen, dass die Ziele, eine höhere Pünktlichkeit und eine höhere Anschlusssicherheit, sehr gut erreicht werden.

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Landsweerdt, Christie. "Le fondement de la responsabilité du transporteur." Thesis, Lille 2, 2016. http://www.theses.fr/2016LIL20027.

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Le transporteur est tenu d’une obligation de résultat, dont l’inexécution engage automatiquement sa responsabilité, dès lors qu’il en découle un préjudice. Mais il peut se libérer de sa responsabilité en prouvant l’existence d’une cause d’exonération. Considérée comme un obstacle à l’indemnisation, l’exonération sera appréciée avec plus ou moins de méfiance, selon le mode employé et l’objet transporté. A cet égard, il convient de distinguer le transport de passagers et le transport de marchandises. La prise en compte croissante du besoin de protection du passager fait évoluer le régime auquel

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Mbalati, Basani Violet. "Management of learner supervision through principals' control of punctuality in primary schools in Mopani District." Thesis, 2006. http://hdl.handle.net/10386/117.

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Thesis (M.Ed.) --University of Limpopo, 2006.<br>This thesis is a study on the management of learner supervision through principals’ control of punctuality in primary schools in the Mopani District. The study investigated the ways in which primary school principals manage learner supervision through control of punctuality. The investigation has brought to the light what is happening in schools regarding the management of learner supervision through control of punctuality. The literature review highlighted why learner supervision is essential in schools. Particular areas in the school and

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Fourie, Elizabeth Maria. "The effect of long journeys to work on black commuters' punctuality, absenteeism and travel behaviour." Thesis, 2015. http://hdl.handle.net/10539/16667.

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Due to a number of reasons, black commuters In South Africa are often faced with long, timeous and complicated journeys to work. The purpose of this research report is to determine how these long commuting distances influence the punctuality and rate of absenteeism of black employers to the work-place. A survey was undertaken in Cape Town, Pretoria, Bloemfontein and Durban. The sample of 1238 respondents was divided into long and short-distance commuters and the answers of these two groups were compared. Respondents were questioned about factors causing them to be late or absent from

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Oliveira, Inês Gonçalves de. "Atrasos de voo: Optimização do programa de manutenção da TAP Air Portugal." Master's thesis, 2020. http://hdl.handle.net/10316/94002.

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Dissertação de Mestrado em Engenharia e Gestão Industrial apresentada à Faculdade de Ciências e Tecnologia<br>Num mundo em constante evolução, a competitividade ressalta a importância da optimização dos sistemas. No contexto da aviação, as companhias aéreas têm como um dos factores mais visíveis a pontualidade, um aspecto de elevada importância na escolha do consumidor.Neste âmbito, o presente estudo resulta da colaboração com a companhia aérea de bandeira, a TAP - Transportes Aéreos Portugueses, SGPS, S.A., mais especificamente com a partição da equipa de Engenharia e Aeronavegabilidade da TA

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Olowoyo, Motolani Mary. "The challenges of late coming in some selected high schools located in Soshanguve, Pretoria North, South Africa." 2015. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001831.

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M. Tech. Education<br>The aim of the study is to identify the causes and challenges incurred from late coming in some selected high schools around Soshanguve with a view to providing solution to the problem within the province. Interviews were conducted with all the participants with the use of structured questionnaire and a review of document (class attendance records and late coming records book). The participants were also observed in their natural settings. Participants in the study were leaners from Grades 7 - 12, educators and principals from the selected schools.

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Spreng, Bettina. "Viewpoint Aspect in Inuktitut: The Syntax and Semantics of Antipassives." Thesis, 2012. http://hdl.handle.net/1807/32898.

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In many languages, antipassive morphology is comprised of aspectual morphology (Polinsky 2008). This thesis presents an analysis of the syntax and semantics of antipassives in Inuktitut by exploring the link between aspectual morphology and antipassive morphology. It resolves the longstanding question as to the factors governing the distribution of the antipassive morpheme, showing that the presence of the antipassive morpheme is determined by the meaning of the construction, i.e. it does not merely change the grammatical function. It is proposed that the antipassive construction has imperfect

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