|
:''For the skiing turn, see snowplough turn.'' A snowplow (also spelled snow plow, snowplough or snow plough, see miscellaneous spelling differences) is a device intended for mounting on a vehicle, used for removing snow and ice from outdoor surfaces, typically those serving transportation purposes. Although this term is often used to refer to vehicles mounting such devices, more accurately they are known as winter service vehicles, especially in areas that regularly receive large amounts of snow every year, or in specific environments such as airfields. In other cases, pickup trucks and front end loaders are outfitted with attachments to fulfill this purpose. Some regions that do not frequently see snow may use graders and other equipment for this task, but graders are nonetheless the best equipment to remove compacted snow and ice off the streets. Snowplows can also be mounted on rail cars to clear railway tracks. ==Usage== A snowplow works by using a blade to push snow to the side or straight ahead, clearing it from a surface. Modern plows may include a great deal of technology to make the job—and staying on the road—easier, such as Global Positioning System receivers, head-up displays and infrared cameras. Large custom snowplows are commonly used at major airports in North America. These plows have oversized blades and additional equipment like a rotating sweeper broom (sometimes called jetblade) and blowers at the rear of the plow. For sidewalks and narrow laneways small tractor plows (tracked or wheeled) are used in Canada and the United States. When snowfalls accumulate above a certain height, snowplow operators may be seen clearing primarily designated "snow routes", often for the exclusive use of emergency vehicles such as fire trucks. Underbody scrapers are sometimes mounted on vehicles in residential and urban settings, operating on principles similar to a road grader, but allowing greater weights and speed along with the carriage of a road treatment applicator. Newer technology has allowed the use of articulated plow systems which can clear multiple divided highway lanes simultaneously; jurisdictions adopting this technology include the provinces of Alberta, British Columbia, New Brunswick, Ontario and Quebec in Canada, along with 13 states (Indiana, Kansas, Maine, Michigan, Minnesota, Missouri, North Dakota, Ohio, Pennsylvania, Tennessee, Utah and Wisconsin) in the US.〔http://www.iowadot.gov/maintenance/TowPlows.html〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Snowplow」の詳細全文を読む スポンサード リンク
|