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Washboarding effect on a road. Washboarding or corrugation [1] is the formation of periodic, transverse ripples in the surface of gravel and dirt roads.Washboarding occurs in dry, granular road material [2] with repeated traffic, traveling at speeds above 8.0 kilometres per hour (5 mph). [3]
Shoving: a washboard like effect transverse to the direction of travel [5] Ride quality: uneven road surface such as swells, bumps, sags, or depressions [2] Damage: resulting from accidents and/or fires [6] It can also be used to control or change the height of part or all of the road.
Washboard may refer to: Washboard (laundry), a tool for washing clothes; Washboard (musical instrument), a percussion instrument; Washboarding, corrugation on gravel ...
A gravel road in Asikkala, Finland. A gravel road is a type of unpaved road surfaced with gravel that has been brought to the site from a quarry or stream bed.Gravel roads are common in less-developed nations, and also in the rural areas of developed nations such as Canada and the United States.
A corduroy road or log road is a type of road or timber trackway made by placing logs, perpendicular to the direction of the road over a low or swampy area. The result is an improvement over impassable mud or dirt roads, yet rough in the best of conditions and a hazard to horses due to shifting loose logs.
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A corduroy road is a road build of transverse round logs, and may be covered with soil or gravel to create a smoother surface for travel. A washboard road is a dirt or gravel road whose surface has been worn by vehicular traffic to resemble a washboard; it's not a corduroy road.
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