Global ETD Search
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Showing 1 to 20 of 34 for “"rail line"”.
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Modeling cost and time uncertainty in rail line construction
… approach to capture cost and time uncertainty in rail line projects, and applied this to the construction of a new high speed rail line in Portugal. The construction of the four main types of structures in rail lines (tunnels, viaducts, cuts and embankments) is modeled bottom-up from the single …
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Impact of Rail Line Abandonment on Agricultural Production and Associated Grain Marketing and Fertilizer Supply Firms
Made available in DSpace on 2014-12-13T19:23:16Z (GMT). No. of bitstreams: 1 7616096.pdf: 8033786 bytes, checksum: 7cc7f4680c3c148d48c8e1b9e8dc8959 (MD5) Previous issue date: 1976
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[Re]connected and on track integrating the Nelson Mandela Bay commuter rail line with the Swartkops area through a re-imagined future
… of exclusionary planning practices.The commuter rail line in Nelson Mandela Bay, running between Gqeberha (formerly Port Elizabeth) and Kariega (formerly Uitenhage) is an example of a public transport system that has failed to adapt to changes in where and how people live and move. As such, it is …
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The impact of operational strategies and new technologies on railroad capacity
North American freight railroads are expected to face increasing capacity constraints due to substantial, expected long-term growth in traffic. In order to meet this forecasted demand railroads must efficiently use existing capacity and effectively plan new capacity. Infrastructure to provide this …
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An environmental justice assessment of the light rail expansion in Denton County, Texas.
This study analyzes the proposed passenger rail line expansion along US Interstate Highway 35 in Denton County, Texas. A multi-dimensional approach was used to investigate potential environmental justice (EJ) consequences from the expansion of the transportation corridor. This study used empirical …
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Measuring the value of transit access for Dallas County: A hedonic approach.
Advocates of urban light rail transit argue that positive developments around station area(s) should offset the costs of implementing a transit system by creating more livable communities and enhance surrounding residential property values. In some cases, decreased urban landscape aesthetics have …
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A Train Station for Downtown Blacksburg, Virginia: An Analysis of Blacksburg's Urban Condition and the Insertion of a New Defining Landmark
… the vicinity of the historic â Huckleberryâ rail line characterizes, defines, and augments the public regions of downtown Blacksburg.
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Capacity challenges on the California high-speed rail shared corridors : how local decisions gave statewide impacts
… Francisco Bay Area, the California High-Speed Rail Authority (CHSRA) adopted a "blended system" at the north and south bookends of the planned first phase of its high-speed rail line. In this blended operation, the high-speed rail line will share track and other infrastructure with commuter …
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The impact of light rail transportation announcement and construction : the role of rail transit in property values, land use, demographics, equity, accessibility, and gentrification
… demand, many cities have turned to light rail transit to not only alleviate congestion but also to provide an economic development stimulus to the areas around the stations. This report focuses on determining the economic impact on areas surrounding announced light rail stations in Austin, …
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Utilizing automatically collected data to infer travel behavior : a case study of the East London Line extension
… by the introduction of the extended East London Line (ELL) into London's public transportation network. A recently developed method for inferring all Oyster users' origins and destinations on the public transportation system, and linking trip segments into full journeys, enables analysts to study …
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Programmed emptiness : research infrastructure on the Tibetan plateau
The recent completion of a rail line running from central China to Lhasa in the Tibet Autonomous Region has brought attention not only to China's Architecture and Urbanism questionable occupation of Tibet, but also to the face that modernization in the TAR has adopted and the accompanying …
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Last Chance : crossing industrial and ecological cycles
… of long-term environmental change often rely on linear narratives of growth and decline. Last chance sites have been described as offering a limited window of time to witness landscapes and seascapes that are deemed to exist within varying states of vanishing, captivating audiences with visible …
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Envisioning Regional Futures in Southeast Los Angeles: Understanding Barriers to Implementing Transit-Oriented Communities along the Forthcoming Southeast Gateway Line
… first 14.5-mile phase of the Southeast Gateway Line (SEGL), a planned light rail project through Southeast Los Angeles and the Gateway Cities region, is expected to be completed by 2035. The rail line aims to improve transit access while being complemented by a regional planning framework and …
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Firms in Integrated Urban Models: Agglomeration Economies and the Dynamics of Employment Size Decisions
… I examine the estimated impacts of a major urban rail line investment – the Green Line extension – in terms of job creation and gross production increase, and the cost of labour market frictions in terms of firms’ foregone profits.
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Estimating commuter rail demand to Kendall Square along the Grand Junction Corridor
Since acquiring the Grand Junction Railroad in June 2010 from CSX, the Massachusetts Bay Transit Authority (MBTA) has explored the possibility of using the line for commuter rail service. In addition the Grand Junction right-of-way has been the subject of other proposals, including a multi-use path …
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Rebuilding the Edge: The Case of the Sulmona–Carpinone Railway and the Town of Pettorano sul Gizio
… register the rural realities along an abandoned rail line in Central Italy. It interprets available data at the territorial scale, and generates original data more granularly through the use of contemporary technologies. Combined with stakeholder interviews, and policy framework analyses, this …
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Optimal train control on various track alignments considering speed and schedule adherence constraints
… consumption. Due to the recent increase in gasoline cost, a significant number of travelers are shifting from highway modes to public transit, which also induces higher transit energy consumption expenses. This study presents an approach to optimize train motion regimes for various track …
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Exploring the spatial implications of capacity constraints in public transportation systems : a scenario-based analysis of London
… the crowding relief on existing commuter lines from the opening of a parallel high-speed rail (HSR) line. A sketch assignment model is developed in TransCAD to demonstrate the potential of common modeling practice to bias travel cost estimates, thereby distorting economic predictions. …
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Improving high-frequency transit reliability : a case study of the MBTA Green Line through simulation and field experiments of real-time control strategies
… Bay Transportation Authority (MBTA) Green Line in Boston, a complex, four-branch light rail line. A simulation model is developed to estimate and compare the benefits of different schedule-based and headway-based holding strategies. Dispatching trains at terminals to target headways is …
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Community Involvement in commuter rail improvements : the case of the Fairmount Line in Boston
… initiative to improve service on commuter rail and examines whether this initiative's focus on commuter rail in particular -- as opposed to a focus on other modes of transit -- affected the strategies of community members' participation and actions. It finds that despite the project's focus …
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