Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"TF Railroad engineering and operation"”.
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Quantifying the effects of an increasingly warmer climate with a view to improving the resilience of Great Britain's railway network: Is a new stressing regime the answer?
… this ensures that cold-related tension cracks and heat-related rail buckles are kept within tolerable levels. It is predicted that winters will become warmer and summers hotter than the baseline climate. It is believed that Great Britain can continue to operate with a stress free (rail) …
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Simulation of energy efficiency improvements on commuter railways
Railway networks consume large amounts of energy and, as a result, are the cause of a significant amount of CO\(_2\) and other harmful gas emissions. British railways strive to comply with objectives set by the European Rail Research Advisory Council and the Committee on Climate Change. …
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Strategic change in the UK railway network through reorganization and major projects
… Regulation, Transport Statistics Great Britain and the Office of National Statistics in generating extensive time series data for the various measures of passenger numbers, freight activity, performance and much more. Unfortunately, the sheer volume and complexity of the data are such as to …
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Characterising the Mechanical Loads Acting on Nuclear Packages during Rail Transportation
The safe transportation of new and spent nuclear fuel is an essential part of the nuclear fuel cycle. The aim of this thesis was to obtain a more thorough understanding of the mechanical loading acting on heavy nuclear packages during rail transportation. There were two motivating factors for this …
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A generic fault detection and diagnosis approach for pneumatic and electric driven railway assets
… of equipment that are critical to the dependable operation of the railway system. A failed asset is likely to cause significant delay to rail services, and may even place the system into an unsafe state. A generic fault detection and diagnosis (FDD) solution for a number of railway assets of …
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Operational industrial fault detection and diagnosis: railway actuator case studies
… required to operate with a high level of safety and reliability. The weakest components are those which have the highest safety requirements and the lowest inherent reliability. Single-throw mechanical actuators, such as powered train doors, trainstops, level crossing barriers and switch …
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Optimising AC electric railway power flows with power electronic control
… values for the reactive power in each drive and to send those commands back to the individual equipment. In this thesis, AC railway power flows are optimised in real time and the results are used to achieve some particular system objective via control of the PWM equipment as mobile reactive …
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Metro traffic optimisation accounting for the disbenefit of halting between stations
… disbenefits to passengers, such as waiting time and journey time, in the objective function. The particular disbenefit of trains being halted between stations is introduced in this thesis, in combination with those already mentioned. An effective method in real operations for preventing trains …