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.
Results
Showing 1 to 20 of 27 for “"London Underground"”.
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Improving the estimation of platform wait time at the London Underground
… estimation of platform wait time (PWT) at the London Underground (LU) by determining the methodology that provides the most accurate and robust estimates of PWT. Three methodologies are tested: (1) LU's current PWT methodology using train tracking data that has been made more complete and …
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Estimating train passenger load from automated data systems : application to London Underground
… be developed and applied in the context of the London Underground, but should also be applicable to other urban public transportation systems. Assessment of the results of this model and consideration of the challenges in the creating the model does not conclusively indicate that identifying the …
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Service reliability measurement framework using smart card data : application to the London Underground
… to three origin-destination (O-D) pairs on the London Underground. Subsequently, the proposed framework is used to characterize the reliability of 800 Underground O-D pairs representing the highest-volume journeys on the system. Furthermore, models are estimated to quantify the effects of …
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An interactive sonic environment derived from commuters' memories of the soundscape: a case study of the London Underground
… the relationship between commuters and the London Underground (LU) soundscape in order to create an interactive sonic environment on the Internet. The methodology combines fieldwork and artistic work, focusing on commuters’ perceptions of time and space, and on their sonic memories, as …
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Development of a wireless sensor unit for tunnel monitoring
… The tunnel in question is a part of the London Underground system. Construction of a new tunnel beneath the existing tunnel is anticipated to cause quantifiable vertical displacement. To ensure safe operation of the tunnel during the construction activity, a real-time monitoring system …
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Implementing a wireless base station for a sensor network
… network for a particular infrastructure. The London Underground project, which is described in this thesis as a reference case study, demands real-time data transmission, low-power network, and wireless network communication, and also a hardware/software system to collect, archive and display …
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British Muslim Extremism: The Terror Within
… Muslims carried out a terrorist attack on the London Underground. This was the first suicide bombing in the western world. The failure of British Muslims to integrate into society has created a social, political and security problem for Great Britain, which may take more than a generation to …
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Rapid development of a wireless infrastructure monitoring system
… to measure minute settlements in an existing London Underground subway tunnel as new tunneling work was taking place below it. The system developed would use wireless technology for its data communication. This development project was a part of a larger initiative to promote low-cost, …
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The value of automated fare collection data for transit planning : an example of rail transit OD matrix estimation
… as in the context of the transit system serving London in the United Kingdom. In particular, it identifies bias in the AFC entry and exit data and develops a methodology for building an unbiased estimate of existing travel patterns on the London Underground.
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Energy Efficient Passenger Comfort in Underground Subway Environments
Underground subway systems provide an efficient high capacity public transportation method for commuters within dense urban areas. Passengers using underground subway systems are subjected to enclosed and crowded environments that must be controlled to maintain tolerable temperatures and …
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Evaluating the robustness of crew schedules for rail transit systems
… the thesis focuses on the Piccadilly Line on the London Underground, the concepts and methods developed are intended to be applicable to a range of metro lines and systems. The thesis has four components: first, a description of the types of incidents that take place on a line, the type of service …
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The measurement of passenger preferences towards rail station and on-train facilities
… obtained. This study reports on research on the London Underground, investigating the potential introduction of a range of improvements to passenger facilities on the Northern Line. In this original work, discrete choice SP methods were used to measure the values of these improvements in a way …
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Automating journey fare calculation for transport for London
… journey fare calculation for Transport for London. Today, fares for every possible origin-destination station pair within the London Underground are prepared manually based on the zonal fare structure. Multiple feasible paths often exist within the network for a given origin-destination …
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Long-term behaviour of twin tunnels in London clay
… Permeability tests are performed on fissured London Clay, exploring the effect of isotropic stress cycles on the permeability of fissures. A model explaining the permeability–stress relationship is proposed to explain irrecoverable changes observed in fissure permeability, and is formulated …
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Islam in the British broadsheets: how historically-conditioned orientalist discourses inform representations of Islam as a militant monolithic entity
From the Iranian revolution in 1979 to the London underground suicide bombings on the 7th of July 2005, the image of Islam as a militant anti-Western faith featured dominantly in the global mass media. This thesis examines the claim that the Western media representation of Islam, the second largest …
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Risk and Safety in Engineering Processes
… Management Process is implemented across the London Underground Upgrades Directory.
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Measuring journey time reliability in London using automated data collection systems
… For fully gated transit systems, like the London Underground, AFC data provides direct travel time measures for every journey from the fare gate at the entry station to the fare gate at the exit station. For non-gated systems, such as many bus networks, no information is available on …
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Fare policy analysis for public transport : a discrete-continuous modeling approach using panel data
… to be captured. This methodology is applied to London's public transport system using Oyster smartcard data collected between November 2005 and February 2008. The results indicate a strong inertia effect in terms of ticket choice among public transport users in London. An individual's prior …
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Magnetism of anthropogenic airborne particulate matter
… into the indoor micro-environment of the London Underground (LU). I find that the LU is dominated by ultrafine (<100 nm) maghemite particles. The oxidised nature of the magnetic PM suggests that PM exposure in the LU is dominated by resuspension of aged dust particles relative to freshly …
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Characterizing transit system performance using Smart Card data
… agency. This thesis focuses specifically on the London Underground, but the intent is that the types of analysis described herein can be applied to any rail transit system with similar data resources. The research has three parts. First, a methodology is developed to estimate passenger volumes on …
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