FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W377948695> ?p ?o ?g. }

• W377948695 abstract "During strong winds, drifting snow causes problems on roads in many harsh winter climate countries. Increased snow-removal costs, reduced access and safety problems are typical results of excessive snowdrift sedimentation and bad visibility along many roads in the exposed regions.The objective of the study is to enhance knowledge on drifting snow behaviour on roads and to develop design criteria for better road construction in mountainous areas and other areas where frequent snowfall and strong winds occur. The study is focused on road cuts, because road sections with terrain cuts are the most vulnerable both concerning visibility and snow depositing on the road. The study is mainly based on CFD (Computational Fluid Dynamics) and field measurements. Field studies were carried out in both Norway and Iceland, and include snow surveys, wind measurements and a visibility registration. A wind tunnel study on snow drifting around a model avalanche dam is also a part of the thesis.Wind flow in road cuts was simulated and the resulting wind speed distribution and flow pattern were compared to snow surveys. On basis of this comparison and by considering experimental relationships between wind flow and snow drifting, new design principles were proposed.An important result of the study is the distinction between wind flow and snow drifting in gently sloping road cuts and in steep road cuts, respectively. Wind and snow drifting in gently sloping cuts and on leeward facing hillsides can usually be described as a two-dimensional flow. On the other hand, steep road cuts generally create a vortex moving parallel the road, and the resulting flow pattern must be described in three dimensions.Results for gently sloping road cuts suggest that in order to achieve a drift free road, it must be placed downwind of the equilibrium snowdrift surface. This implies that a considerable speed up in the wind has to occur over the road embankment to facilitate snow erosion from the road surface. A statistical method to predict equilibrium snowdrift surfaces by using terrain information only is proposed. The model is based on weighing terrain slopes, and creates a streamlined surface to imitate the shape of the equilibrium snowdrift surface.For steep cuts, a design that features an expanded cut width at both ends of the cut was tested. The design increases the speed of the transverse vortex under the cut edge, and generates less turbulence than a straight cut, which is believed to have a positive effect on the visibility. The proposed design also moves the critical low speed areas away from the road, and should therefore result in less snow accumulation on the road.It is concluded that plain wind flow simulations are a helpful tool to learn about snow drifting on roads, and can be used to test the quality of a proposed design. The suggested design principles for road cuts are promising for full scale testing." @default.
• W377948695 created "2016-06-24" @default.
• W377948695 creator A5013453851 @default.
• W377948695 creator A5048977194 @default.
• W377948695 date "2002-01-01" @default.
• W377948695 modified "2023-09-24" @default.
• W377948695 title "DESIGN CRITERIA FOR ROADS IN SNOW-DRIFTING AREAS" @default.
• W377948695 hasPublicationYear "2002" @default.
• W377948695 type Work @default.
• W377948695 sameAs 377948695 @default.
• W377948695 citedByCount "0" @default.
• W377948695 crossrefType "journal-article" @default.
• W377948695 hasAuthorship W377948695A5013453851 @default.
• W377948695 hasAuthorship W377948695A5048977194 @default.
• W377948695 hasConcept C123403432 @default.
• W377948695 hasConcept C127313418 @default.
• W377948695 hasConcept C153294291 @default.
• W377948695 hasConcept C161067210 @default.
• W377948695 hasConcept C161840515 @default.
• W377948695 hasConcept C197046000 @default.
• W377948695 hasConcept C205649164 @default.
• W377948695 hasConcept C2524010 @default.
• W377948695 hasConcept C33923547 @default.
• W377948695 hasConcept C38349280 @default.
• W377948695 hasConcept C39432304 @default.
• W377948695 hasConcept C58640448 @default.
• W377948695 hasConcept C94700167 @default.
• W377948695 hasConceptScore W377948695C123403432 @default.
• W377948695 hasConceptScore W377948695C127313418 @default.
• W377948695 hasConceptScore W377948695C153294291 @default.
• W377948695 hasConceptScore W377948695C161067210 @default.
• W377948695 hasConceptScore W377948695C161840515 @default.
• W377948695 hasConceptScore W377948695C197046000 @default.
• W377948695 hasConceptScore W377948695C205649164 @default.
• W377948695 hasConceptScore W377948695C2524010 @default.
• W377948695 hasConceptScore W377948695C33923547 @default.
• W377948695 hasConceptScore W377948695C38349280 @default.
• W377948695 hasConceptScore W377948695C39432304 @default.
• W377948695 hasConceptScore W377948695C58640448 @default.
• W377948695 hasConceptScore W377948695C94700167 @default.
• W377948695 hasLocation W3779486951 @default.
• W377948695 hasOpenAccess W377948695 @default.
• W377948695 hasPrimaryLocation W3779486951 @default.
• W377948695 hasRelatedWork W1502154169 @default.
• W377948695 hasRelatedWork W1537953598 @default.
• W377948695 hasRelatedWork W1547180009 @default.
• W377948695 hasRelatedWork W2000668792 @default.
• W377948695 hasRelatedWork W2103124349 @default.
• W377948695 hasRelatedWork W2182992632 @default.
• W377948695 hasRelatedWork W2369153706 @default.
• W377948695 hasRelatedWork W2393645242 @default.
• W377948695 hasRelatedWork W2578851821 @default.
• W377948695 hasRelatedWork W2772165993 @default.
• W377948695 hasRelatedWork W3044210643 @default.
• W377948695 hasRelatedWork W566505100 @default.
• W377948695 hasRelatedWork W567178728 @default.
• W377948695 hasRelatedWork W609131962 @default.
• W377948695 hasRelatedWork W618888775 @default.
• W377948695 hasRelatedWork W81364667 @default.
• W377948695 hasRelatedWork W839751520 @default.
• W377948695 hasRelatedWork W1865054024 @default.
• W377948695 hasRelatedWork W2547942315 @default.
• W377948695 hasRelatedWork W2605925532 @default.
• W377948695 isParatext "false" @default.
• W377948695 isRetracted "false" @default.
• W377948695 magId "377948695" @default.
• W377948695 workType "article" @default.