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Dissertations / Theses on the topic 'Railway Safety'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Bäckman, Johan. "Railway Safety - Risks and Economics." Doctoral thesis, KTH, Infrastructure, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3341.

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<p>Safety analysis is a process involving several techniques.The purpose of this thesis is to test and develop methodssuitable for the safety analysis of railway risks and railwaysafety measures. Safety analysis is a process comprisingproblem identification, risk estimation, valuation of safetyand economic analysis. The main steps are described in separatechapters, each of which includes a discussion of the methodsand a review of previous research, followed by the contributionof this author. Although the safety analysis proceduredescribed can be used for analysing railway safety, it has suchge

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2

Bäckman, Johan. "Railway safety : risks and economics /." Stockholm, 2002. http://www.lib.kth.se/Fulltext/backman020524.pdf.

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3

Tsai, Ming-Chih. "Economics of railway safety rules." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286895.

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4

Chen, Yao. "Improving railway safety : risk assessment study." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4465/.

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Railway safety is very important, as it concerns human lives. Therefore identifying risks from possible failures is vital to maintain the safety of railways. Currently, many mature tools, such as fault tree analysis and event tree analysis, are applied to investigate possible risks to railway safety. However, in many circumstances, the applications of these tools are unable to provide satisfactory results when the risk data is incomplete or there is a high level of uncertainty involved in the risk dataThus it is essential to develop new methods to overcome the weakness of current assessment to

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5

Kyriakidis, Miltos. "Developing a human performance railway operational index to enhance safety of railway operations." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/21760.

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The railway system is a complex network that involves continuous interaction of human operators with technology, procedures and regulations to ensure safe and efficient operations. From an architectural perspective, the complexity of the interactions presents a risk of failure with the consequence that safety incidents and accidents may occur. The common approach to the development of measures for mitigating such occurrences is the retrospective analysis of accidents and incidents; in order firstly to identify, classify and acknowledge the contributing factors and secondly, to suggest mitigati

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6

Henry, Jason. "Automatic fault tree construction for railway safety systems." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/7234.

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This thesis looks into ways of developing a new approach for fault tree automation. Initially an extensive literature survey was undertaken to try and identify if any methods contained useful features that might warrant further development. The two methods that were chosen were the decision table method and the digraph method. The new hybrid method is based on the flexibility of the decision table method but incorporates a way of detecting, classifying and analysing control loops, similar to the use of operators in the digraph approach. As well as using operators to deal with control loops new

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Mbombo, Kekeletso Prudence. "Railway safety awareness campaigns as an educative process." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/76712.

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In the railway industry (like other industries), safety awareness campaigns are conducted as intervention programmes for providing educational programmes to change the attitudes and behaviours of the general public that interact with the railway environment. Such educational intervention programmes are ideally achieved by following pedagogical principles that ensure programme quality. However, it seems that even with the use of safety awareness campaigns, the desired safety behaviour among the general public in the railway environment is not yet established. The purpose of this research study

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So, Koon-leung. "A review of safety startegies of Mass Transit Railway in Hong Kong." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21128789.

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9

Odajima, Ryo S. M. Massachusetts Institute of Technology. "Designing highly automated safety-critical railway system and its organization." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122433.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, System Design and Management Program, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 269-277).<br>High-speed rail (HSR) has improved dramatically since its launch in 1964 in terms of its technical aspects such as speed and reliability, thanks to technical developments including the automation of the train operation. At the same time, safety has become an increasingly critical aspect as the severity of the accidents has become much more severe. Although the automation

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10

Tam, Yuen-chi. "The effectiveness of the safety management system on the MTR." Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B4257514X.

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So, Koon-leung, and 蘇冠良. "A review of safety startegies of Mass Transit Railway in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B3195232X.

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12

Mahboob, Qamar. "A Bayesian Network methodology for railway risk, safety and decision support." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138087.

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For railways, risk analysis is carried out to identify hazardous situations and their consequences. Until recently, classical methods such as Fault Tree Analysis (FTA) and Event Tree Analysis (ETA) were applied in modelling the linear and logically deterministic aspects of railway risks, safety and reliability. However, it has been proven that modern railway systems are rather complex, involving multi-dependencies between system variables and uncertainties about these dependencies. For train derailment accidents, for instance, high train speed is a common cause of failure; slip and failure of

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13

Esbester, Mike. "'Dead on the point of safety' : occupational safety education on the Great Western Railway, c.1913-1939." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434166.

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In February 1914, the Great Western Railway Company (GWR) observed of its occupational safety education campaign that it was ‘dead on the point of “Safety”’. This statement reveals one of the key themes explored in this thesis: the quote marks surrounding ‘safety’ unwittingly acknowledged the socially constructed nature of occupational safety. The study that follows deconstructs the techniques used by the GWR to convey its understanding of occupational safety to its employees and to the state. The techniques introduced by the GWR in 1913 were recognisably modern in nature, being reliant upon p

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14

Sango, Marc. "Traceability of concerns and observer-based verification for railway safety-critical software." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10067/document.

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Ces dernières années, le monde des systèmes critiques a connu un véritable essor en matière de demande de logiciels. Dans une optique majeure de réduction des coûts de développement, les grands acteurs du monde critique comme ceux de l’avionique et de l’automobile s’orientent de plus en plus vers l’ingénierie dirigée par les modèles. Par contre les acteurs du domaine ferroviaire, pour des raisons stratégiques et organisationnelles restent encore fidèles à des méthodes conventionnelles qui leur permettent de tirer au maximum profit de leurs compétences. Cependant, ces approches conventionnelles

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15

Si, Zhaopu. "Reducing earthquake risk on the East Japan Railway through investment in safety." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40997.

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Muller, John Francis. "Serviceability of prestressed concrete railway sleepers." Thesis, Queensland University of Technology, 1985. https://eprints.qut.edu.au/36475/1/36475_Muller_1985.pdf.

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In 1984, prestressed concrete members of a left hand, trial 1 in 16 concrete sleepered turnout were subjected to strain gauge measurements under coal traffic in Central Queensland. However, the results were inadequate to permit finalisation of standards for sleepers generally. Consequently, strain gauges were installed across the entire rail seat cross-sections of eight standard sleepers in 1985 to ascertain the effects of artificially produced rail defects on prestressed concrete sleeper performance under coal traffic conditions. This operation was carried out in 1985 and the results

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17

Cheng, Doasheng. "Uncertainty analysis of large risk assessment models with applications to the Railway Safety and Standards Board safety risk model." Thesis, University of Strathclyde, 2009. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=11806.

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18

Heinrich, Markus [Verfasser], Max [Akademischer Betreuer] Mühlhäuser, and Stefan [Akademischer Betreuer] Katzenbeisser. "Security Engineering in Safety-critical Railway Signalling / Markus Heinrich ; Max Mühlhäuser, Stefan Katzenbeisser." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1226288804/34.

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19

Smith, Peri. "Safety case for the introduction of new technology into an existing railway system." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/45313.

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This thesis addresses safety in the railway industry with a focus on safety culture, defined by the United Kingdom’s Health and Safety Executive as ‘the behavioural aspects (i.e. what people do) and the situational aspects of the company (i.e. what the organisation has)’. Current safety management systems do not appropriately incorporate safety culture. This has the potential to cause serious harm to human life. As the definition implies, safety culture is not easily measured or quantified. It involves factors that influence human behavior in safety critical and technology dense environments s

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20

Zheng, Yuheng. "Integration of satellite positioning and a track database for safety-critical railway control systems." Thesis, University College London (University of London), 2008. http://discovery.ucl.ac.uk/15933/.

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Although Global Navigation Satellite Systems (GNSS) have been widely used in aviation, vehicle and marine navigation, and have also found non-safety railway applications (e.g. for locating trains in order to provide passengers with arrival and departure information), they still cannot be used in a standalone mode for safety critical railway applications such as automatic train control, automatic door opening or train integrity monitoring. This is because GNSS suffers from the line-of-sight problem, namely, GNSS might be unavailable when trains run through the areas with low satellite visibilit

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Westergård, Morten Jarvis. "A comparison of engineering processes related to safety between the offshore and railway sectors." Thesis, KTH, Marina system, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198504.

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After a period of high activity within the offshore sector in Norway, they now experience a decrease in activity. At the same time, the railway sector is experiencing high activity and new investments. This leads to a shift in the need of engineering expertise. A relevant area of expertise is the designand engineering processes related to safety. This is a study of such processes in the two industries, based on a comparison of the relevant industry standards, and supported by impressions collected in interviews. The purpose of this study is to investigate into the agility of transfer of safety

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22

Parkkila, Christoffer. "CLONE DETECTION IN MODEL-BASED DESIGN: AN EVALUATION IN THE SAFETY-CRITICAL RAILWAY DOMAIN." Thesis, Mälardalens högskola, Inbyggda system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54936.

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Introduction: Software reuse by copying and modifying components to fit new systems is common in industrial settings. However, it can lead to multiple variants that complicate testing and maintenance. Therefore, it is beneficial to detect the variants in existing codebases to document or incorporate them into a systematic reuse process. For this purpose, model-based clone detection and variability management can be used. Unfortunately, current tools have too high computational complexity to process multiple Simulink models while finding commonalities and differences between them. Therefore, we

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23

Williams, Faizel. "Understanding Railway Trespassing in a South African City: The Case Of Cape Town." Master's thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/33094.

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Trespassing behaviour is a problem for railway operations and manifests itself through train-pedestrian collisions, incidents of theft and vandalism to rail infrastructure, as well as encroachment on railway property. The study has consisted of a quantitative and a qualitative part. The quantitative part analyses demographic, temporal and spatial data on train-pedestrian fatalities and injuries, as well as data on occurrences of theft and malicious damage to rail infrastructure in the Cape Town Functional Region between 2015 and 2018. The qualitative part presents the perspective from a divers

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24

Arasteh, Khouy Iman. "Cost-effective maintenance of railway track geometry : a shift from safety limits to maintenance limits." Doctoral thesis, Luleå tekniska universitet, Drift, underhåll och akustik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26052.

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Railway infrastructure is a complex system which comprises different subsystems. Long life span is one of the important aspects of this prime mode of transport. However, the useful life of its assets is highly dependent on the maintenance and renewal strategy used during the assets’ life cycle. Today’s demands on the railway industry call for increased capacity, including more trains, travelling at higher speeds with higher axle loads. This increased usage results in higher degradation of railway assets and higher maintenance costs. Formerly, railway maintenance procedures were usually planned

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Stolagiewicz, A. A. "Contributions to the foundations of a safety case for the use of GNSS in railway environments." Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/15782/.

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The use of GNSS in the railways for passenger information services and selective door opening is already commonplace but the advancement of this increasingly popular navigation technique into safety of life rail applications has been hindered by the unknown level of measurement error caused by the local rail environment, especially that due to multipath. Current state of the art receiver technologies are discussed along with the additional advantages of signal differencing using local base stations. Limiting factors for hardware in a kinematic environment are also discussed and specific exampl

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Panda, Rajendra. "Software Integration Test for Railway Control Systems." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16231/.

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This dissertation is the result of a five months internship experience at Akka Technologies S.r.l which is the final client of A. T. Company. A. T. is a well-known railway and railway infrastructure construction sector (Transport Division) with SCMT project performed in collaboration with the Akka Technologies S.r.l. Company decided to introduce the Verification and Validation within its development process and contacted experts from the university to implement industrially feasible strategies to address this goal. The work presented here reports on the results achieved in the context of this

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27

Grauers, Henning. "Risk, Rail and the Region : A spatial analysis of regional differences of infrastructural safety and the risk of accidents at Swedish level-crossings." Thesis, Stockholms universitet, Kulturgeografiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-169509.

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Level-crossings, i.e. intersections where railways and road meet in the same vertical level, constitute risk for the users of respective infrastructure system. The aim of this thesis is to examine possible regional differences between the infrastructural safety standard of level-crossings in Sweden. With the use of spatial analyses tools in a Geographical Information System, the differences between Swedish counties are outlined and mapped. By the use of a logistic regression model, the variables that increase the risk of an accident in a level-crossings are analysed. The results show that the

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Mahboob, Qamar Verfasser], Jochen [Akademischer Betreuer] [Trinckauf, and Daniel [Akademischer Betreuer] Straub. "A Bayesian Network methodology for railway risk, safety and decision support / Qamar Mahboob. Gutachter: Jochen Trinckauf ; Daniel Straub." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://d-nb.info/1068445912/34.

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Mahboob, Qamar [Verfasser], Jochen [Akademischer Betreuer] Trinckauf, and Daniel [Akademischer Betreuer] Straub. "A Bayesian Network methodology for railway risk, safety and decision support / Qamar Mahboob. Gutachter: Jochen Trinckauf ; Daniel Straub." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138087.

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Govoni, Marco <1987&gt. "Evolution of Communication and Monitoring Systems for the Management of Traffic and Safety Control Systems in Railway Sites." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/7888/1/Dottorato_GOVONI_1.pdf.

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The collaboration between R.F.I. S.p.A. and Alma Mater Studiorum of Bologna had the purpose to evaluate the feasibility and to investigate the main radar sensor tech- nologies suited to be integrated with existing signalling systems in rail sites, with particular reference to the UWB technology. This activity has been supported by a study of the UWB radio channel characteristics in a reference (LC-like) scenario, through ray tracing (RT) simulation. It was also studied, with the aid of computer simulations, the remote interconnection of several radars via ﬁber optic links (RoF), in order

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Wallace, Angela M. "Motorist behaviour at railway level crossings : the present context in Australia." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/17831/1/Angela_Wallace_Thesis.pdf.

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Railway level crossing collisions in Australia are a major cause of concern for both rail and road authorities. Despite the fact that the number of railway crash fatalities in Australia has fallen in recent years, level crossing collisions constitute a significant proportion of the national rail toll. Although rail transport is presently one of the safest forms of land transport, collisions at level crossings are three times more likely to involve fatalities as compared to all other types of road crashes (Afxentis, 1994). With many level crossing fatalities and injuries resulting in coronial i

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Wallace, Angela M. "Motorist behaviour at railway level crossings : the present context in Australia." Queensland University of Technology, 2008. http://eprints.qut.edu.au/17831/.

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Railway level crossing collisions in Australia are a major cause of concern for both rail and road authorities. Despite the fact that the number of railway crash fatalities in Australia has fallen in recent years, level crossing collisions constitute a significant proportion of the national rail toll. Although rail transport is presently one of the safest forms of land transport, collisions at level crossings are three times more likely to involve fatalities as compared to all other types of road crashes (Afxentis, 1994). With many level crossing fatalities and injuries resulting in coronial i

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Blakstad, Helene Cecilie. "Revising rules and reviving knowledge. Adapting hierarchical and risk based approaches to safety rule modifications in the Norwegian Railway System." Doctoral thesis, Norwegian University of Science and Technology, Department of Industrial Economics and Technology Management, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1704.

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<p>The study is about safety rule revision with hierarchical and risk-based approaches in the Norwegian railway system. The two approaches represent a change in the rule modification tradition of this system. The overall research question is:</p><p><i>How did the Norwegian railway system respond to new requirements for safety rule modifications?</i></p><p>The study gives special attention to the influence of modification processes upon railway knowledge.</p><p>There are three objectives for the study. One objective is to provide descriptions of modification processes that can contribute to inc

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Tshaai, Dineo Christina. "Optimisation of Rail-road Level Crossing Closing Time in a Heterogenous Railway Traffic: Towards Safety Improvement - South African Case Study." Master's thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/33056.

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The gravitation towards mobility-as-a service in railway transportation system can be achieved at low cost and effort using shared railway network. However, the problem with shared networks is the presence of the level crossings where railway and road traffic intersects. Thus, long waiting time is expected at the level crossings due to the increase in traffic volume and heterogeneity. Furthermore, safety and capacity can be severely compromised by long level crossing closing time. The emphasis of this study is to optimise the rail-road level crossing closing time in order to achieve improved s

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35

Ahmad, Bilal, and ii Ratna Kosasih. "Investigating Safe Implementation In Railway Industry : A case study at Alstom DC Sweden." Thesis, Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446284.

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Organizations have always tried and pushed themselves to bring changes in how they conduct business. They do this to reach the market quickly and achieve customer satisfaction. This master thesis was conducted at a global leader transportation company, Alstom, to investigate Scaled Agile Frameworks (SAFe) adoption in their Sweden Development Centre, identifying SAFe implementation challenges in a safety-related development as a single-case study. For the thesis, two research questions were formulated to identify the implementation challenges and find their reasons. For the data collection of t

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Forsberg, Rebecca. "Train crashes : consequences for passengers." Doctoral thesis, Umeå universitet, Kirurgi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-61291.

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Background: Globally, and in Sweden, passenger railway transport is steadily increasing. Sweden has been relatively free from severe train crashes in the last decades, but the railway infrastructure is alarmingly worn and overburdened, which may be one reason for an increasing number of reported mishaps. Worldwide, major train crashes/disasters are a frequent cause of mass casualty incidents. Several shortcomings, especially within the crash and post-crash phases cause severe consequences for the passengers. Aim: To investigate the consequences of train crashes on passengers, focusing on facto

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Hamza, Hamza. "Optimizing scoped and immortal memory management in real-time Java." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/8486.

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The Real-Time Specification for Java (RTSJ) introduces a new memory management model which avoids interfering with the garbage collection process and achieves better deterministic behaviour. In addition to the heap memory, two types of memory areas are provided - immortal and scoped. The research presented in this Thesis aims to optimize the use of the scoped and immortal memory model in RTSJ applications. Firstly, it provides an empirical study of the impact of scoped memory on execution time and memory consumption with different data objects allocated in scoped memory areas. It highlights di

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Nordström, Åsa. "The effect of the update of the European standard EN 50128 : - The management of the safety of the software applications for railway applications." Thesis, Uppsala universitet, Signaler och System, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325580.

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The European standard EN 50128 "Railway applications - Communication, signalling and processing systems - Software for railway control and protection systems" is one of the European standards for European Railway systems. It is intended for software aspects, specifying procedures and technical requirements for the development of programmable Electronic systems, which are used in railway control and protection applications. Since 2017- 04-25 the original version EN 50128:2001 has been replaced by the updated new version EN 50128:2011. The update is quite extensive and will effect many parts of

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Allahvirdizadeh, Reza. "Reliability-Based Assessment and Optimization of High-Speed Railway Bridges." Licentiate thesis, KTH, Bro- och stålbyggnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301318.

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Increasing the operational speed of trains has attracted a lot of interest in the last decades and has brought new challenges, especially in terms of infrastructure design methodology, as it may induce excessive vibrations. Such demands can damage bridges, which in turn increases maintenance costs, endangers the safety of passing trains and disrupts passenger comfort. Conventional design provisions should therefore be evaluated in the light of modern concerns; nevertheless, several previous studies have highlighted some of their shortcomings. It should be emphasized that most of these studies

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Crabtree, Gärdin David, and Alexander Jimenez. "Optical methods for 3D-reconstruction of railway bridges : Infrared scanning, Close range photogrammetry and Terrestrial laser scanning." Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-67716.

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The forecast of the next upcoming years estimates a growth of demand in transport. As the railway sector in Europe has developed over many years, the infrastructure presents performance issues because of, among other factors, asset maintenance activities being difficult and time consuming. There are currently 4000 railway bridges in Sweden managed by Trafikverket which are submitted to inspections at least every six years. The most common survey is done visually to determine the physical and functional condition of the bridges as well as finding damages that may exist on them. Because visual i

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Xue, XiangDong. "Passive safety in train design : a statistical analysis of railway accidents and a study of crashworthiness of rail vehicles with recommendations for enhancement." Thesis, University of Sheffield, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414651.

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42

Jegenberg, Minna, and Kristina Lundström. "Utredning om ökad tillgänglighet och säkerhet för resenärer vid järnvägsstationer på mindre orter : En undersökning med en fallstudie i Fagersta som inkluderar resenärers och ansvariga aktörers syn på stationsmiljöer samt samarbetet mellan aktörerna." Thesis, KTH, Transportplanering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260058.

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To increase the use of public transport and to increase the safety for the travelers, two aspects thatare included in the goals regarding the Swedish transport system, the design of railway stations isimportant. When planning stations, many stakeholders are involved and therefore there is a risk thatproblems may occur, especially in smaller municipalities where there might be a lack of resources.Moreover, it is the travelers’ needs that should be in focus when planning stations.This thesis was carried out with the objective to investigate measures to solve problems regardingthe travelers’ acce

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Shang, Hui. "Maintenance modelling, simulation and performance assessment for railway asset management." Thesis, Troyes, 2015. http://www.theses.fr/2015TROY0022/document.

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Les travaux présentés dans ce manuscrit visent à développer des modèles de coût/performances pour améliorer les décisions de maintenance sur les infrastructures ferroviaires exploitées dans un environnement de plus en plus contraint: trafic accru, détérioration accélérée, temps de maintenance réduits. Les modèles de maintenance proposés sont construits à base de réseaux de Petri colorés ; ils sont animés par simulation de Monte Carlo pour estimer les performances (en termes de coût et de disponibilité) des politiques de maintenance considérées. Ils sont développés aux niveaux "composant" et "r

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Hanikat, Marcus. "Towards a Correct-by-Construction design flow : A case-study from railway signaling systems." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299362.

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As technological advancements and manufacturing techniques continues to bring us more complex and powerful hardware, software engineers struggle to keep up with this rapid progress and reap the benefits brought by this hardware. In the field of safety-critical system development, where a thorough understanding and deterministic nature of the hardware often is required, the cost of development closely relates to the complexity of the hardware used. For software developers to be able to reap the benefits of the technological advancement in hardware design, a Correct-by-Construction with a model-

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Anders, Enrico. "Ein Beitrag zur ganzheitlichen Sicherheitsbetrachtung des Bahnsystems." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1236438234758-35102.

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Im Rahmen der Arbeit wird der Begriff Sicherheit aus verschiedenen Blickwinkeln beleuchtet, Randbedingungen aus Theorie und Praxis zielorientiert strukturiert und ein Vorschlag für eine Integration betrieblicher Aspekte in Sicherheitsanalysen dargelegt. Dazu werden zunächst die normativ verankerten Lebenszyklusphasen des Bahnsystems und die darin festgelegten Verantwortlichkeiten vorgestellt. Darauf aufbauend erfolgt die beispielhafte Beschreibung einer neuen Analysemethode in Verfügbarkeits-Sicherheits-Diagrammen für betriebliche Szenarien des Bahnsystems. Die Arbeit endet mit der Vorstellung

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De, Angelis Simone. "Emergency response to railroad accidents involving hazardous materials." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8071/.

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The chemical industry has to face safety problems linked to the hazards of chemicals and the risks posed by the plants where they are handled. However, their transport may cause significant risk values too: it’s not totally possible to avoid the occurrence of accidents. This work is focused on the emergency response to railway accidents involving hazardous materials, that is what has to be done once they happen to limit their consequences. A first effort has been devoted to understand the role given to this theme within legislations: it has been found out that often it’s not even taken into a

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Brabie, Dan. "On Derailment-Worthiness in Rail Vehicle Design : Analysis of vehicle features influencing derailment processes and consequences." Doctoral thesis, Stockholm : Farkost och flyg, Kungliga Tekniskan högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4548.

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Hsu, Chin-Min, and 許智閔. "Safety Culture, Safety Behavior and Safety Performance in Taiwan Railway Administration." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/14617136902934541131.

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碩士<br>國立成功大學<br>交通管理學系碩博士班<br>97<br>This research aims at identifying the correlations among safety culture, safety Behavior, and safety performance, as well as finding and explaining the relational dimensions and factors that affects the above three aspects. Most of the existing reference about this topic (the correlation among safety culture, safety Behavior, and safety performance) were conducted by literature review, few of them has been identified by actual data. The SEM (structure equation modeling) and factor analysis are applied by issuing questionnaires to drivers of Taiwan Railway. A

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Kao, Chi-Ming, and 高啟銘. "Driving Safety Analysis of Railway Vehicle System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/wm9cbs.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程系碩士專班<br>105<br>In this study, ADAMS/Rail software is used to investigate the dynamic analysis for a railway vehicle system. This paper discusses the effects of different vehicle speed,orbital unevenness, wheel - rail contact force and friction coefficient on derailment quotients. It also compares the influence of the FASTSIM and POLACH algorithm on derailment factors. The result of data analysis shows that the faster vehicle speed will induce the larger train derailment coefficient. In the other hand, the greater the coefficient of friction between rail and wheels

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Heinrich, Markus. "Security Engineering in Safety-critical Railway Signalling." Phd thesis, 2021. https://tuprints.ulb.tu-darmstadt.de/13484/1/Dissertation_Markus_Heinrich_v2.0.0.pdf.

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Public transportation provides a major contribution to the mobility of modern societies. Passengers and customers of railway transportation expect a safe, timely, and comfortable service. To meet this demand, safety engineers have established strategies over decades to remove risks and increase safety that become manifest in railway signalling systems which are fundamental to today's safe train operation. Over the recent years, digitalisation found its way into the signalling systems but unfortunately at the cost of making them vulnerable to cybersecurity threats. The vulnerabilities can a

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