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 “"Winter Maintenance"”.
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Optimization of Pavement Marking Performance
… etc. but particularly the degree and type of winter maintenance. This need is satisfied by the research presented in this paper on pavement marking materials that assess durability and visibility, and in improved procedures of marking material evaluation and selection. A field testing program …
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The Effect of Tree Shade and Snowpack Cover on Pavement Surface Temperature
… andminimum pavement surface temperatures for winter road maintenance. This thesis provides an extensive literature review on tree cover and methods of calculating shade, winter maintenance practices, principles of heat transfer for snowpack systems, and the urban heat island effect. Then, a 1D …
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Thermal Energy Storage Aggregate using Low-Cost Organic Phase Change Materials
… concerns. De-icing salts and other routine winter maintenance activities are intended to improve safety but have considerable cost and environmental runoff concerns and cause decreased infrastructure lifespan. As a remedy, the literature has recently investigated using different phase change …
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Evaluation of the Impact of Anti-Icing Solution on Concrete Durability
Winter roadway maintenance is based on applying salt to the surface of the pavement in order to lower the freezing point and break the bond of snow and ice to improve traction and safety. Conventional winter maintenance involves applying solid salt (rock salt) to the pavement prior to and during …
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Condition Analysis of Concrete Bridge Decks in Utah
… the routine application of deicing salts during winter maintenance activities. Given the need for increasingly cost-effective strategies for bridge deck maintenance, rehabilitation, and replacement (MR&R), the Utah Department of Transportation (UDOT) initiated this research to ultimately develop …
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Life history and physiological ecology of the lizard, Cordylus Giganteus
… Coleoptera as prey. Fat bodies are utilized for winter maintenance and reproduction. Hatchlings grow 20-30mm during the first year and maximum growth rates occur in summer. Males and females attain sexual maturity at about 165 mm SVL in the fourth year. Seasonal affects on growth rate resulted in …
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Scheduling and routing of service trucks and planning of resource replenishment locations for winter roadway maintenance
… Furthermore, it is sometimes challenging to plan winter maintenance operations in advance because snow storms are stochastic with respect to, e.g. start time, duration, impact area, and severity. Based on progression of the snow storm, additional maintenance demand is arising either periodically …
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Effect of Air Temperature, Vehicle Speed, and Pavement Surface Aging on Tire/Pavement Noise Measured with On-Board Sound Intensity Methodology
… involved), air temperature differentials and winter maintenance. In general, the findings show trends that tire/pavement noise slightly decreases as air temperature increases. A gradient of approximately -0.05 dBA/"F was found. It was found as well that tire/pavement noise increases an average …
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Walking in old age: A year-round perspective on accessibility in the outdoor environment and effects of measures taken
Accessibility throughout society has been gaining interest on both international and national levels in order to meet the transportation needs of, for example, older people as pedestrians. The overall aim of this thesis is to examine the implementation process in municipal planning, and effects of …