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 274 for “"crossings"”.
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Atlantic crossings
Thesis (S.M. in Science Writing)--Massachusetts Institute of Technology, Dept. of Humanities, Program in Writing and Humanistic Studies, 2003.
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Crossings in Clustered Level Graphs
… clusters and levels and their influence on edge crossings and cluster/edge crossings.
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Crossings : the promise of proximity
… its systems based on these interactions, or crossings, and develop an ecology of building systems; d. good-looking homes aren't good enough ... we must move toward the concept of a high-performance home, properly deploying our knowledge of these interactions. The thesis is organized in four …
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Field crossings : hybridizing the urban park
The growth and identity of urban open space is a vital issue facing our cities today. The development and revitalization of old industrial centers in the United States has prompted urban transformations in usage, densification and demographics. These shifting neighborhoods call for a …
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Discovering Border Crossings in Pagan Epic Literature
<p>This dissertation argues that border crossings were important to the ancient Celts and Norse as evidenced by the vast quantity of occurrences in their literature,and have remained important themes in literature throughout the ages. Border crossings reflect man's fascination with concepts beyond …
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Pedestrian safety at urban mid-block crossings
The mid-block crossing is a common behaviour among people walking in urban areas. Where demand for crossing is high, it can result in increased crash risk. Most of these crashes are likely to result in pedestrian severe injuries or fatalities, especially when crash impact speeds are high. Despite …
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Optimizing Traffic Network Signals Around Railroad Crossings
The dissertation proposed an approach, named "Signal Optimization Under Rail Crossing sAfety cOnstraints"(SOURCAO), to the traffic signal control near a highway rail grade crossing (HRGC). SOURCAO targets two objectives: HRGC safety improvement (a high priority national transportation goal) and …
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Cruising, Crossings & Care: Sounds of Collective Black Girlhood
… girlhood studies and girl programming. Cruising, Crossings and care, as sounds of collective Black girlhood created in SOLHOT, resound us towards 1) being with Black girls and women across difference in deep love, trust and care 2) remembering Black feminist/women and artists love and care for …
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Driver injury severity at u.s. highway-rail crossings
… are approximately 240,000 highway-rail grade crossings in the United States and highway-rail grade crossing areas have been considered in this study as these are locations where crashes frequently occur. Existing studies on crash models at highway- rail grade crossings can be classified into …
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Behavior of bolted connections in railroad diamond crossings
… including turnouts, switches, and diamond crossings, that are used where rails join or cross. The repeated impact and dynamic loads that diamond crossings are subjected to result in alignment problems and more rapid deterioration of the special track work elements compared to open track. …
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Benefits of Additional Runway Crossings on Parallel Runway Operations
… increasing traffic. Among these problems, runway crossings are a considerable source of ground traffic inefficiency and risk. Building end-around taxiways are the only strategy to avoid crossings, but these are not always feasible, and therefore airport planners must find alternatives. This study …
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Conical Intersections and Avoided Crossings of Electronic Energy Levels
… and more. Secondly, we study codimension 2 crossings by considering a more general type of wave packet. We focus on the case of Schrödinger equation but our methods are general enough to be adapted to other systems with the geometric conditions therein. The motivation comes from the …
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Constructing the interface: Crossings between the public and the private
The built fabric of the city of Cape Town reflects the social and economic inequalities within its citizenship. Contemporary practices of inner-city living tend to cater to the wealthy while social housing on the periphery continues to exclude the poor from basic services and access to …
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Experimental evaluation of retroreflective markings on trains and grade crossings
… States, hundreds of accidents occur at grade crossings due to motor vehicles colliding with trains. Furthermore, a large majority of these accidents take place at night in rural areas. One proposed solution to prevent such accidents involves mounting retroreflective material on the sides of …
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Hybridity, border-crossings and the homeland in contemporary literature by women
1 PDF file (v, 74 pages)
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Hydraulic modeling and performance evaluation of low water crossings in Illinois
… old and aging bridges, culverts, and low water crossings on rural low-volume roads that need to be replaced. Low water crossings (LWCs) have been used as an economical alternative to culverts and bridges, designed without overtopping, on low-volume roads where there is a low number of floods. …
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Quantitative analyses of train derailment probability at highway-rail grade crossings
… of collisions and highway user casualties at crossings. However, these two metrics do not encompass all crossing risks. Specifically, they do not consider the potential for grade crossing incidents to cause train derailments and the consequent casualties to passengers and crew members, …
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