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Snow Road
A snow road is a type of winter road, which is a road that is used or trafficable only in the winter.Adam 1978Abele 1990Proskin et al. 2011 Snow roads make up some or all of the on-land segments of a winter road. The snow is either compacted in place or, when there is not enough of it, is hauled from elsewhere, then compacted. The snow may be processed, for instance, by agitation to reduce the size of the particles before compaction.Lang et al 1997 Additional snow is also used to help protect the vegetation and as a means of improving trafficability. This snow, sometimes referred to as 'snow pavement', can be compacted to various level, depending on requirements and available equipment – a higher compaction will accommodate heavier vehicles and higher tire pressures.Russell-Head et al 1984 To increase the road's load capacity and its resistance to wear, water can be added onto the snow surface, resulting in a denser pavement and the formation of an ice cap. Ultimately, with a su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Road Schematics
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles in the atmosphere by attracting supercooled water droplets, which freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns and rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow metamorphoses, by sintering, sublimation and freeze-thaw. Where the climate is col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winter Road
A winter road is a seasonal road only usable during the winter, i.e. it has to be re-built every year. This road typically runs over land and over frozen lakes, rivers, swamps, and sea ice.Proskin et al, 2011. Guidelines for the Construction and Operation of Winter Roads, Transportation Association of Canada.- IHSA, 2014. Best practices for building and working safely on ice covers in Ontario, Mississauga, Ontario, 43 p.- NorthWest Territories Transportation, 2015. Guidelines for safe ice construction, Yellowknife, NWT, Canada, 44 p.Spencer, P.A., Strandberg, A.G. and Maddock, W.A., 2008. Ice and toundra road design for module transport, Proceedings of the 8th International Conference on Ships and Marine Structures in Cold Regions (ICETECH), Banff. Segments of a winter road that cross an expanse of floating ice are also referred to as an ice road or an ice bridge. The foundations underlying over-land segments is most often native soil or muskeg frozen to a given depth, and local ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowbelt
The Snowbelt is the region near the Great Lakes in North America where heavy snowfall in the form of lake-effect snow is particularly common. Snowbelts are typically found downwind of the lakes, principally off the eastern and southern shores. Cause Lake-effect snow occurs when cold air moves over warmer water, taking up moisture that later precipitates as snow when the air moves over land and cools. The lakes produce snowsqualls and persistently cloudy skies throughout the winter, as long as air temperatures are colder than water temperatures, or until a lake freezes over. Location In the United States, snowbelts are located southeast of Lake Erie from Cleveland, Ohio, to Buffalo, New York, and south of Lake Ontario stretching roughly from Rochester, New York, over Syracuse, New York, to Utica, New York, and northward to Watertown, New York. Other snowbelts are located on the eastern shore of Lake Michigan from Gary, Indiana, northward through Western Michigan and Northern Mich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Road
An ice road or ice bridge is a human-made structure that runs on a frozen water surface (a river, a lake or a sea water expanse).Masterson, D. and Løset, S., 2011, ISO 19906: Bearing capacity of ice and ice roads, Proceedings of the 21st International Conference on Port and Ocean Engineering under Arctic Conditions (POAC), Montreal, Canada.Proskin, S.A. and Fitzgerald, A., 2019, Using a limit states approach for ice road design, GeoSt.John's, St. John's.Spencer, P. and Wang, R., 2018, The design width of floating ice roads and effect of longitudinal cracks, Proceedings of the Arctic Technology Conference (ATC), Houston. Ice roads are typically part of a winter road, but they can also be simple stand-alone structures, connecting two shorelines.Michel, B., Drouin, M., Lefebvre, L.M., Rosenberg, P. and Murray, R., 1974, Ice bridges of the James Bay Project. Canadian Geotechnical Journal, 11, p. 599-619.Goff, R.D. and Masterson, D.M., 1986, Construction of a sprayed ice island for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Roads
An ice road or ice bridge is a human-made structure that runs on a frozen water surface (a river, a lake or a sea water expanse).Masterson, D. and Løset, S., 2011, ISO 19906: Bearing capacity of ice and ice roads, Proceedings of the 21st International Conference on Port and Ocean Engineering under Arctic Conditions (POAC), Montreal, Canada.Proskin, S.A. and Fitzgerald, A., 2019, Using a limit states approach for ice road design, GeoSt.John's, St. John's.Spencer, P. and Wang, R., 2018, The design width of floating ice roads and effect of longitudinal cracks, Proceedings of the Arctic Technology Conference (ATC), Houston. Ice roads are typically part of a winter road, but they can also be simple stand-alone structures, connecting two shorelines.Michel, B., Drouin, M., Lefebvre, L.M., Rosenberg, P. and Murray, R., 1974, Ice bridges of the James Bay Project. Canadian Geotechnical Journal, 11, p. 599-619.Goff, R.D. and Masterson, D.M., 1986, Construction of a sprayed ice island for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Types Of Roads
A road is a thoroughfare, route, or way on land between two places that has been surfaced or otherwise improved to allow travel by foot or some form of conveyance, including a motor vehicle, cart, bicycle, or horse. Roads have been adapted to a large range of structures and types in order to achieve a common goal of transportation under a large and wide range of conditions. The specific purpose, mode of transport, material and location of a road determine the characteristics it must have in order to maximize its usefulness. Following is one classification scheme. Types of roads Lower capacity roads Street Primitive roads *Agricultural road *Backroad *Dirt road *Forest road *Gravel road * Green lane *Historic roads and trails *Ice road *Roman roads *Sunken lane Large roads Private roads *Driveway *Gated community *Military road *Private highway *Private road Intersecting roads * Connector * Interchange *Intersection *Level junction *Level crossing *Road diet * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
