Change search
Refine search result
12 1 - 50 of 53
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Carlsson, Arne
    et al.
    Swedish National Road and Transport Research Institute.
    Nilsson, Göran
    Swedish National Road and Transport Research Institute.
    Brüde, Ulf
    Swedish National Road and Transport Research Institute.
    Hammarström, Ulf
    Swedish National Road and Transport Research Institute.
    Sandberg, Ulf
    Swedish National Road and Transport Research Institute.
    Öberg, Gudrun
    Swedish National Road and Transport Research Institute.
    Cedersund, Hans-Åke
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Effektsamband i Vägverkets effektkatalogserie: Planprojekt1990Report (Other academic)
  • 2.
    Hedström, Ragnar
    et al.
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Wiklund, Mats
    Swedish National Road and Transport Research Institute.
    Vinterklimatmodell för järnvägssektorn: en förstudie2007Report (Other academic)
    Abstract [sv]

    The aim of this report is to make an initial survey of disruptions to rail traffic in winter. This survey is used in studying the prospects for submitting a project application to Banverket, the authority responsible for rail traffic in Sweden. The total cost of the effects or consequences that affect rail traffic because of the winter climate can be broken down into several items. First and foremost, there are the direct costs of Banverket for winter maintenance and the direct costs of the train operators. To this must be added the indirect costs incurred by passengers and freight customers. The size of these indirect costs in a socio-economic perspective depends on the extent of the delays and the way the delays are valued in monetary terms by passengers and freight customers. We have scrutinised the approach and the model structure for the road sector that are set out in the Winter Model. This model will soon be used on the national road network to describe the most important socio-economic effects of various strategies and measures in winter road management. With this as the starting point, a first draft for an effect model for the winter management of rail infrastructure has been drawn up. We believe that this effect model will be found valuable for structuring and analysing the impact of winter on the various elements of rail infrastructure.

  • 3.
    Ihs, Anita
    et al.
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Beräkningsmodell för vinterväghållningskostnader: fördelning av medel till Vägverkets regioner2004Report (Other academic)
    Abstract [sv]

    VTI har i uppdrag av Vägverket att ta fram en ny modell för fördelning

    av medel för vinterväghållningen till Vägverkets sju regioner. Det finns ett

    stort behov av en fördelningsmodell som medger en så rättvis

    medelsfördelning som möjligt till regionerna och som därmed också kan

    innebära ytterligare incitament för regionerna att arbeta för att

    effektivisera och minska sina konstnader för vinterväghållningen. Huvudsyftet

    med projektet har varit att ta fram en procentuell fördelning till regionerna

    av totalt tillgängliga medel för vinterväghållningen.

  • 4.
    Ihs, Anita
    et al.
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Halkbekämpning vid låga temperaturer: en litteraturstudie samt en utvärdering av väglagsuppföljningarna under vintrarna 1993/94–1996/19672000Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Syftet med föreliggande studie har varit att genom en litteraturstudie undersöka kunskapsläget vad gäller metoder för halkbekämpning vid låga temperaturer. Dessutom har en utvärdering av väglagsuppföljningarna under vintrarna 1993/94-1996/97 genomförts för att undersöka hur vanligt förekommande halka är och därmed också få en uppfattning om behovet av halkbekämpning vid låga temperaturer.

  • 5.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Analys av väderdata från MESAN och VViS-systemet1997Report (Other academic)
  • 6.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Beräkning av olyckskvot vid olika väglag vintertid med hjälp av schabloner1988Report (Other academic)
  • 7.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Beräkning av samband mellan fordonsålder och trafikarbete för några olika fordonstyper1989Report (Other academic)
  • 8.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Beräkningsmodell i VädErs, version 2.03: detaljerad beskrivning med kommentarer2001Report (Other academic)
  • 9.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Beräkningsmodell i VädErsKombi, version 1.00: detaljerad beskrivning med kommentarer2003Report (Other academic)
    Abstract [sv]

    Det utvecklings- och programmeringsarbete som resulterat i en

    datoriserad ersättningsmodell för vinterväghållning baserad på väderdata från

    VViS, VädErs 2.03, har dokumenterats i två tidigare VTI notat. Efter att

    modellen har varit i bruk under några år har det blivit aktuellt med en

    översyn. Utvecklingen av s.k. MESAN-analyser vid SMHI har också kommit så

    långt att resultat från dessa analyser kan vara ett alternativ/komplement

    till VViS-data. En samlad översyn och komplettering av VädErs 2.03 har därför

    gjorts samtidigt som en del fel och brister har avhjälpts. En bra

    ersättningsmodell för att, utifrån vinterns karaktär, reglera kostnader för

    vinterväghållning mellan beställare och utförare kräver två väl fungerande

    delmodeller. En delmodell som beskriver vädret under vintersäsongen En

    delmodell som kopplar väderbeskrivningar till åtgärdsbehov/resursinsatser.

    Grunden för väderbeskrivningar är rådata från enskilda stationer i

    Vägverkets system för vägväderinformation, VViS eller från MESAN-analyser.

    VViS-stationerna genererar punktvärden, medan MESAN anger värden som medeltal

    över rutor som är 22 x 22 km stora. Följande rådata används från VViS:

    Lufttemperatur Vägytans temperatur Daggpunktstemperatur. Relativ

    luftfuktighet Nederbördstyp Nederbördsmängd Vindhastighet Från MESAN

    fås i princip samma typer av uppgifter som från VViS, men med den viktiga

    skillnaden att vägytans temperatur saknas. Detta notat beskriver i detalj

    hur programmet VädErsKombi, version 1.00, arbetar från utgångspunkten

    rådata från VViS och/eller MESAN till slut-fasen ersättningsunderlag i

    form av väderutfall. Följande händelsekedja visar beräkningsgången i stort:

    Rådata från VViS och/eller MESAN vädersituation på halvtimmesnivå

    vädersituation på timnivå vädertillfälle väderutfall Första delen av

    händelsekedjan, fram t.o.m. vädersituationer på timnivå, bildar

    väderbeskrivningsmodellen. Därefter vidtar kopplingen mellan väder och åtgär-

  • 10.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Ersättningsmodell för vinterväghållning2005Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    En bra ersättningsmodell för att, utifrån vinterns karaktär, reglera

    kostnader för vinterväghållning mellan beställare och utförare kräver två väl

    fungerande delmodeller. - En delmodell som beskriver vädret under

    vintersäsongen. - En delmodell som kopplar väderbeskrivningar till

    åtgärdsbehov/resursinsatser. Grunden för väderbeskrivningar är rådata från

    enskilda stationer i Vägverkets system för vägväderinformation, VViS, eller

    från s.k. MESAN-analyser från SMHI. VViS-stationerna genererar punktvärden,

    medan MESAN anger värden som medeltal över rutor som är 22 x 22 km stora.

  • 11.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Ersättningsmodell för vinterväghållning baserad på väderdata från VViS2002Report (Other academic)
    Abstract [sv]

    En bra ersättningsmodell för att, utifrån vinterns karaktär, reglera

    kostnader för

    vinterväghållning mellan beställare och utförare kräver två väl fungerande

    delmodeller.

    En delmodell som beskriver vädret under vintersäsongen

    En delmodell som kopplar väderbeskrivningar till

    åtgärdsbehov/resursinsatser

    Grunden för väderbeskrivningarna är rådata från enskilda stationer i

    Vägverkets

    system för vägväderinformation, VViS. Följande rådata används.

    1. Lufttemperatur

    2. Vägytans temperatur

    3. Relativ luftfuktighet

    4. Daggpunktstemperatur

    5. Nederbördstyp

    6. Nederbördsmängd

    7. Vindhastighet

    I notatet beskrivs hur ersättningsmodellen för vinterväghållning arbetar från

    utgångspunkten

    rådata från VViS till slutfasen ersättningsunderlag i form av

    väderutfall. Följande händelsekedja visar beräkningsgången i stort.

    Rådata VViS - vädersituationer på halvtimmesnivå - vädersituationer på

    timnivå - vädertillfälle - väderutfall.

    Första delen av händelsekedjan, fram t.o.m. vädersituationer på timnivå,

    bildar

    väderbeskrivningsmodellen. Därefter vidtar kopplingen mellan väder och

    åtgärder.

  • 12.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Ersättningsmodell för vinterväghållning baserad på väderdata från VViS och MESAN, VädErsKombi2003Report (Other academic)
    Abstract [sv]

    En bra ersättningsmodell för att, utifrån vinterns karaktär, reglera

    kostnader för vinterväghållning mellan beställare och utförare kräver två väl

    fungerande delmodeller. En delmodell som beskriver vädret under

    vintersäsongen En delmodell som kopplar väderbeskrivningar till

    åtgärdsbehov/resursinsatser. Grunden för väderbeskrivningar är rådata från

    enskilda stationer i Vägverkets system för vägväderinformation, VViS eller

    från s.k. MESAN-analyser från SMHI. VViS-stationerna genererar punktvärden,

    medan MESAN anger värden som medeltal över rutor som är 22 x 22 km stora.

    Följande rådata används från VViS: Lufttemperatur; Vägytans temperatur;

    Daggpunktstemperatur; Relativ luftfuktighet; Nederbördstyp;

    Nederbördsmängd; Vindhastighet. Från MESAN fås i princip samma typer av

    uppgifter som från VViS, men med den viktiga skillnaden att vägytans

    temperatur saknas. I detta notat beskrivs på översiktlig nivå hur

    ersättningsmodellen för vinterväghållning arbetar från utgångspunkten

    rådata från VViS och/eller MESAN till slutfasen ersättningsunderlag i

    form av väderutfall. Följande händelsekedja visar beräkningsgången i stort.

    Rådata från VViS och/eller MESAN vädersituation på halvtimmesnivå -

    vädersituation på timnivå - vädertillfälle - väderutfall

    Första delen av händelsekedjan, fram t.o.m. vädersituationer på timnivå,

    bildar väderbeskrivningsmodellen. Därefter vidtar kopplingen mellan väder och

    åtgärder.

  • 13.
    Möller, Staffan
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    GPS-styrd saltspridning: test på avlyst bana2013Report (Other academic)
    Abstract [en]

    The purpose of the project is to test and document GPS controlled salt spreading on a test track by weighing ditributed salt quantities and compare with intended amounts of salt at different spreading amounts, spreading widths, symmetries, speeds and types of salt (pre wetted salt and brine). The test is to study how salt distribution is affected by changes in the road section both to the right and to the left of the through lane or the two through lanes. Such changes should imitate e.g. transition from two lanes to one on a 2 + 1 road or passing a refuge or a bus-bay. A test track was marked with tape. In order to measure the spread salt quantities plastic sheets, with the size 1.1 x 1.6 metre, were taped on the surfacing. Centered over the plastic sheets cloths of curtain fabric, with the size 1.0 x 1.5 metre, were placed. The cloths were held in place by chains. When a comparison is made between the salt distribution with and without GPS control of the salt spreader on two lanes and a bus-bay and on a transition from two lanes to one the following conclusions are drawn. Using pre wetted salt on two lanes and a bus-bay at 30 and 45 km/h the results with GPS control got better on the right lane. On the left lane the results were about the same. Both with and without GPS control small amounts of salt ended up on the bus-bay. Using brine on two lanes and a bus-bay at 40 and 65 km/hour the results on the right and left lane respectively were about the same with and without GPS. On the bus-bay the results with GPS got worse. Using pre wetted salt on a transition from two lanes to one at 30 and 45km/h the results with GPS control got worse on the right lane. On the left lane GPS control resulted in higher amounts of salt, but not better results, compared with without GPS. Using brine on a transition from two lanes to one at 40 and 65 km/hour the results with GPS control got better both on the right and the left lane.

  • 14.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Jämförelse mellan väderbeskrivning enligt MESAN/VViS och verkligt väder1998Report (Other academic)
  • 15.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Jämförelse mellan väglagsfördelningar: vinterväglagsuppföljningen 1993/94 jämförs med äldre väglagsuppföljningar1995Report (Other academic)
  • 16.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    MINSALT: Reducering av saltvägnätet i Kopparbergs län1991Report (Other academic)
  • 17.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Nya tekniker och metoder inom vinterväghållning: en litteraturgenomgång2007Report (Other academic)
    Abstract [sv]

    Among new technology and new methods in winter road maintenance, with special interest, the following can be emphasized.

    Advanced technology highway maintenance vehicle: The maintenance vehicle is not only an operational truck but also a mobile data gathering platform. The following examples of sensors and equipment have been suggested: - System to determine the location of the truck by use of GPS technology - System for recording meteorological data such as air and road surface temperature, humidity and sight distances - System for gathering data about road surface conditions, road surface friction characteristics and freezing point temperature of a wet, moist or slushy road - System for recording application rate of spread materials, e.g. sand or salt - System for transmitting the above mentioned data wirelessly to a dispatch centre where data are recorded on magnetic media.

    Admixture of sugar to salt: - Sugar cannot melt snow or ice but can prevent abrupt freezing - Patent process: Sugar is manufactured directly from raw sugar beet, not from waste agricultural products - End product: Sugar beet flour containing 75 % sugar and 25 % beet substance - 30 % sugar beet flour is mixed with 70 % warm water, enzyme is added and

    completed sugar solution is obtained. About 25 % sugar content - The sugar solution was tested mixed with brine, and also when used for prewetting dry salt - The results did not show any significant differences in friction characteristics.

    Admixture of sugar to sand: - Sand was mixed with 50-100 litres of sugar solution per m3 - Result: The same friction characteristics as sand mixed with 80 litres of brine per m3 - No problems with freezing in storehouse.

    Warm sand: - Method: Hot water is mixed with sand at the moment of spreading - Sand adheres to the road surface and creates a sandpaper effect - Long duration in stable weather conditions.

  • 18.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Olyckskvot vid olika väglag: Förslag till metoder dels för approximativ beräkning av olyckskvot dels för beskrivning av väglag1986Report (Other academic)
  • 19.
    Möller, Staffan
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Tema Vintermodell - Etapp 3: förbättring, uppdatering och känslighetsanalys2014Report (Other academic)
    Abstract [en]

    The aim of the Winter model is to estimate and put a value on the most important impacts of strategies and measures in winter road management for road users, road management authorities and society at large. A first version of the Winter model, with all its sub models, was published 2006 in VTI report 531 (The Winter model. Stage 2. Final report) http://urn.kb.se/resolve?urn=urn:nbn:se:vti:diva-6420. Because the level of ambition with the first version of the Winter model was to achieve a working prototype there are improvements to make within different areas or sub models. The improvements consist of actions with a wide variety of work from a few hours to several years of analysis, modelling and programming. The presentation of the project will begin with a list of important short- and long-term bug fixes and improvements to the Winter model and their rank (priority 1–3). The next chapter describes the implemented bug fixes and improvements with priority 1. The report is finished with a sensitivity analysis of the Winter model. Here the uncertainties in the various sub models are estimated. It is found that, in terms of socio- economic total costs, the uncertainties in accident risk and consequences of accidents have greatest influence. Since the purpose of the Winter model is to compare different strategies and actions the socio-economic total costs are not of the most interest. Instead the difference in socio-economic costs between alternatives, that is what benefit is gained from the changes in strategy or action, is of interest. Such a marginal cost analysis has been done with data from the calculation of socio-economic total costs. Here, the benefit can be estimated of more salting which will decrease the proportion of snow and ice on the road and increase the proportion of bare ground. It turns out that the most important components of the socio-economic marginal costs are the reduction in accident costs and secondly the reduction in travel costs.

  • 20.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Tema Vintermodell: väglagsmodellen2006Report (Other academic)
    Abstract [en]

    The Road Condition Model is the central part of the Winter Model. The reason for this is that it produces input data for most of the models that describe effects of different kinds, such as accident risks, travel times, fuel consumption and environmental impact. The road condition model supplies a condition assessment for a winter in the form of a road condition description on an hourly basis. According to the requirements of the client, the road condition model is confined to describing road conditions for two-lane roads with oncoming traffic in rural areas. At this stage, the model is also confined to describing road conditions in the traffic lane. No account is thus taken of hard shoulders, if any. The aim of the project is to develop a working prototype to the definite road condition model. The road condition model consists of the following sub models. The first five are related to maintenance measures taken and the last four to traffic and weather. 1. Anti-icing treatment. - 2. Snow ploughing combined with anti-icing treatment. - 3. Snow ploughing. - 4. Gritting. - 5. Grading. - 6. Rut development in hard-packed snow or thick ice. - 7. Condensation. - 8. Splashing from a wet road. - 9. Drying of a moist road.

  • 21.
    Möller, Staffan
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    The Winter Model: a first test calculation2010In: Sustainable winter service for road users: 13th international winter road congress, Paris: PIARC , 2010, , p. 10Conference paper (Other academic)
    Abstract [en]

    The first test of the Winter Model has just started. The test involves the calculation of socio-economic costs associated with the lowering of the winter service standard applied to the lowest class of roads which are subject to combined snow ploughing and salting. The objective with the Winter Model is to assess the most important socio-economic effects of different winter road maintenance strategies, giving the road administrators a means for optimising strategies and activities. The key model is the Road Condition Model, where the state of the road surface (dry, wet, icy or snowy etc.) is assessed on an hourly level. Using specified weather courses throughout a whole winter season, consideration is given to weather impact, maintenance actions and traffic.

    The effects of the different road conditions are assessed in the following sub-models:

    • The Accident Model
    • The Accessibility Model
    • The Fuel Consumption Model
    • The Corrosion Model
    • The Environmental Model – effects of salting on vegetation and ground water
    • The Road Administrator Model – the cost for measures taken
  • 22.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Trafik och avgasutsläpp: Utblick mot 2015. Avgasutsläpp från vägtrafik för olika år och scenarier. Resultattabeller1990Report (Other academic)
  • 23.
    Möller, Staffan
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Trafikverkets beräkningsmodell för ersättning av vinterväghållningsåtgärder, version VädErs-Kombination, Underlag Väderindex och VädErs 2016: beskrivning med exempel och kommentarer2015Report (Other academic)
    Abstract [en]

    The Swedish Transport Administration has decided to further develop the calculation model used to regulate the costs of winter road maintenance measures between clients and contractor. In connection with the development of the new version of the calculation model, VädErs 2016, a new computer program was made. In this report the rules and procedures used in VädErs 2016 are documented. Also the rules and procedures used in the two earlier versions of the calculation model, VädErsKombination and Underlag Väderindex, are documented in the report. A good calculation model, based on this winter's character, for regulating costs for winter road maintenance measures between client and contractor requires two well-functioning sub models. - 1. A sub model describing the weather during the winter season. - 2. A sub model that links the weather descriptions to the needs to take measures, not necessarily in a 1–1 ratio. The report shows in detail how the three versions of the Swedish Transport Administration’s calculation model work from the start, weather raw data, to the final phase, so called weather outcomes, the basis for compensation. The following weather raw data is used in the calculation model: Air temperature, road surface temperature, dew point temperature, type of precipitation, amount of precipitation and wind speed.

  • 24.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Underlagsmaterial till "Lathunden": beräkning av väglag i olika klimatzoner och driftstandardklasser1996Report (Other academic)
  • 25.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Utveckling av vinterväglagsmodell på mikronivå: Planprojekt1991Report (Other academic)
  • 26.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Vinterväglagsmodell på makronivå: Ett första försök1989Report (Other academic)
  • 27.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Vinterväglagsuppföljning 1993/94: Bearbetning, redovisning, analys1995Report (Other academic)
  • 28.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Vinterväglagsuppföljning 1994/95 - 1996/97: bearbetning, redovisning, analys1999Report (Other academic)
  • 29.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Väglag - trafikflöde - hastighet: en studie av nyttan med att ta hänsyn till väglaget vid bortfallskomplettering av trafikflöde och hastighet1996Report (Other academic)
  • 30.
    Möller, Staffan
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Winter model: road condition submodel2008In: Surface transportation weather and Snow removal and ice control technology, Washington DC: Transportation Research Board, TRB , 2008, p. 512-518Conference paper (Other academic)
    Abstract [en]

    The road condition model presented in this paper is a submodel in the Swedish winter maintenance management system, the Winter Model. The Winter Model will make it possible to asses the most important effects and their monetary value of changes in winter maintenance strategies and operations in Sweden. The effects are assessed for road users, road administrators, and the environment. The submodel road condition modelis the central part of the Winter Model. The road condition model will characterize the state of a winter in terms of a road condition description hour by hour. The road condition modelprovides input data for other models where different effects such as accident risk, travel time, fuel consumption, road management costs, and environmental effects are assessed. In the first stage we have developed a model that will describe how road conditions are affected by weather, maintenance measures taken, and traffic on two-lane rural roads with a width of 7 to 9 m and speed limit of 90 km/h. To a great extent, the basis for developing the road condition model will be data already collected from nine observation sites, during one or two winter seasons, with the purpose of developing another submodel of the Winter Model, the accessibility model. For several periods, data from these observation sites contain information hour by hour regarding weather, traffic flow, initial road condition, and maintenance measures taken. Also specified types of road condition development—mainly connected with snowplowing and anti-icing treatment—can be studied. Additional information has been collected in special field surveys from the winter of 2002–2003. One survey covers the development of ruts down to the pavement in hard-packed snow or thick ice, caused by vehicles with studded tires. Also the mechanism for a wet or moist road to dry out has been studied. The road condition model will initially consist of the following nine submodels. The first five submodels are related to measures and the last four to traffic and weather: (a) anti-icing treatment, (b) snowplowing combined with anti-icing treatment, (c) snowplowing, (d) gritting, (e) grading, (f) rut development in hard-packed snow or thick ice, (g) condensation, (h) splashing from a wet road, and (i) drying of a moist road.

  • 31.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Winter Road Condition Model2005In: Transportation Research Circular E-C063: Sixth International Symposium on Snow Removal and Ice Control Technology, Washington D.C.: Transportation Research Board, National Research Council , 2005, p. 433-441Chapter in book (Other (popular science, discussion, etc.))
    Abstract [en]

    The large-scale project, the Winter Model, will result in a model for assessing the most important effects and their monetary value of changes of winter maintenance strategies and operations. The winter road condition model is the central part of the Winter Model. The road condition model will characterize the state of a winter in terms of a road condition description hour by hour. The road condition model provides input data for the other models where different effects such as accident risk, travel time, fuel consumption, and environmental effects are assessed. In the first stage we intend to develop a model that describes how road conditions are affected by weather, maintenance measures taken and traffic on two lane rural roads with a width of 7 to 9 m and speed limit of 90 km/h. To a great extent, the basis for developing the winter road condition model will be data already collected from nine observation sites with the purpose of developing the accessibility model. For several periods data from these observation sites contain information hour by hour regarding weather, traffic flow, initial road condition, maintenance measures taken and specified types of road condition development mainly connected with snow ploughing and anti-icing measures. Additional information, mostly development of ruts down to the pavement in hard-packed snow or thick ice caused by vehicles with studded tyres, and conditions for a wet or moist road to dry out will be collected by field studies as from the winter season 2002-2003.

  • 32.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Winter Road Condition Model2006Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    The large-scale project, the Winter Model, will produce a model for assessing the most

    important effects of changes in winter maintenance strategies and operations, and their

    monetary value. The winter road condition model is the central part of the Winter Model.

    The road condition model will characterize the state of a winter in terms of a road condition

    description hour by hour. The road condition model provides input data for the other

    models where different effects such as accident risk, travel time, fuel consumption and

    environmental effects are assessed. In the first stage we intend to develop a model that

    describes how road conditions are affected by weather, maintenance measures taken and

    traffic on two lane rural roads with a width of 7-9 m and speed limit of 90 km/h. To a great

    extent, the basis for developing the winter road condition model will be data already

    collected from nine observation sites with the purpose of developing the accessibility

    model. For several periods, data from these observation sites contain information hour by

    hour regarding weather, traffic flow, initial road condition, maintenance measures taken

    and specified types of road condition development mainly connected with snow ploughing

    and anti-icing measures. Additional information, mostly development of ruts down to the

    pavement in hard-packed snow or thick ice caused by vehicles with studded tyres, and the

    mechanism for a wet or moist road to dry out, will be collected by field studies as from the

    winter season 2002/2003.

  • 33.
    Möller Staffan,
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Gregersen, Nils Petter
    Swedish National Road and Transport Research Institute.
    Winter road maintenance in urban areas: Road safety and trafficability. Overview1991Report (Other academic)
  • 34.
    Möller, Staffan et al
    Swedish National Road and Transport Research Institute.
    Vintermätbil för FoU-ändamål 1997-19981999Report (Other academic)
  • 35.
    Möller, Staffan et al
    Swedish National Road and Transport Research Institute.
    Vintermätbil för FoU-ändamål 1998-19991999Report (Other academic)
  • 36.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Gabrielsson, Göran
    GABBÉAB.
    Meirenplogen: kompletterande mätningar av buller, bränsleförbrukning och slitage på plogskär2011Report (Other academic)
    Abstract [en]

    In March/April 2009 the Meiren snowplough and a reference snowplough were tested. Noise levels outside and inside the vehicle cabin, fuel consumption and blade wear were measured. The intention was to measure on snowy and icy road conditions but when the test was to take place the road conditions had changed to dry bare ground. These conditions were of course not representative of normal snowploughing but were instead the worst possible situation. It was therefore necessary to conduct further testing on the Meiren snowplough at more normal ploughing conditions. Additional tests were done in February 2011.

  • 37.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Gabrielsson, Göran
    GABBÉAB.
    Metodbeskrivning för plogtester2010Report (Other academic)
    Abstract [en]

    In the method description it is stated how surveys of the following properties of the test snowplough and a reference snowplough should be made: - Ploughing effectiveness on a test track. - Ploughing effectiveness on public roads. - Cutting ability on a test track covered with hard packed snow. - Throw height and distance of ploughed snow on a test track. - Noise outside on a test track and on public roads. - Noise inside the vehicle cabin on public roads. - Fuel consumption on public roads. - Wear of the steel cutting edge on public roads. - Time consumption for pushing out and pulling in the side plough. - Releasing of the shock valve of the side plough. - Releasing of the steel blade holder. - Measurement or calculation of front axle load with the snow plough lifted. In addition, drivers' views on the use of the ploughs on public roads would be identified.

    Alternative URL: http://fudinfo.trafikve rket.se/fudinfoexternwebb/Publikationer/Publikationer_001101_001200/Publikation_ 001138/R685.pdf

  • 38.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Gabrielsson, Göran
    GABBÉAB.
    Miljöplogen, Meirenplogen och Mähler sidoplog S 45: test av egenskaper hos tre nya plogtyper2010Report (Other academic)
    Abstract [en]

    The use of the newly developed Miljöplogen snowplough began on the public road network at the start of 2008. The Estonian Meirenplogen MSP 4603 snowplough was shown at the Nordicway 2009 exhibition and subsequently tested on Swedish public roads at the beginning of February 2009. The plough was first tested on mountain roads in the Sveg area of Sweden. It was then transferred to the Lit area and tested on the salted road network. In late 2008 it was decided to evaluate the performance of the Miljöplogen on a test track. Further testing on nearby public roads would be carried out during February 2009. Similar testing, in March and April 2009, was carried out for the Meirenplogen MSP 4603 and the Mähler side plough S 45. The aim of the project was to investigate ploughing effectiveness, cutting ability (Meirenplogen only), throw height and distance of ploughed snow, noise (outside and inside the vehicle cabin), fuel consumption, wear of the steel cutting edge, and also to analyse and document test results. In addition, drivers' views on the use of the ploughs would be identified and reported.

  • 39.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Göransson, Nils-Gunnar
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Hala däck vid virkestransporter2010Report (Other academic)
    Abstract [en]

    For many years now, road authorities and representatives from the tyre industry have been well aware of the problems associated with tyre grip loss. The loss of grip is described as the tyres had developed some kind of film or coating. Representatives from the tyre industry believe that a likely explanation is that the coating on the tyre is formed from an asphalt residue found in the water on a wet road surface. The residue is made up of road surface particles worn away by, among others, studded tyres. Chemical analysis, carried out in the 1980s, showed that the coating consists of asphalt, various forms of petroleum products, exhaust residue and salt. The problem occurs only in connection with salted roads. The project has covered the following points:

    • Analysis of a survey, sent out to circa 200 hauliers who work in the timber transport industry
    • A more recent chemical analysis of the coating deposited on tyres with grip loss
    • Collection and compilation of data contained in journals of drivers who work with timber transport in Northern Sweden

    Drivers recorded among other things weather, road conditions, traction, and tyre feel. The journal data was supplemented by details of any maintenance measures taken by road managers. The data has been analysed in order to find a trigger pattern for the loss of tyre grip.

  • 40.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Ulegård, Carl-Henrik
    Vägverket.
    Weather descriptions and compensation model for winter road maintenance2002In: PIARC 2002 XIth International Winter Road Congress 28-31 January 2002 - Sapporo (Japan): Reprints from proceedings of oral presentations, Linköping: Statens väg- och transportforskningsinstitut, 2002, p. 6-Conference paper (Other academic)
  • 41.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Konsekvenser av beläggningsytans tillstånd för vinterväghållningen2002Report (Other academic)
  • 42.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Blomqvist, Göran
    Swedish National Road and Transport Research Institute.
    Tema Vintermodell2005Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Varje år drabbas trafikanterna av olägenheter på grund av is och snö på våra

    vägar, gator och gång- och cykelbanor. Problemen är främst ökad olycksrisk

    och försämrad framkomlighet. För att förebygga eller i varje fall minska

    problemen, vidtar väghållarna driftåtgärder av olika slag, som till exempel

    snöröjning och halkbekämpning. Åtgärderna är till nytta för trafikanterna,

    men innebär kostnader för väghållarna och negativa effekter för miljön. Det

    är därför angeläget att utveckla system för konsekvensbeskrivning av olika

    driftstrategier och -metoder för att göra det möjligt att minimera de

    samhällsekonomiska kostnaderna. För investeringsplanering av vägar och gator

    har man sedan länge haft kalkylmodeller för beräkning av olika effekter:

    förutom kostnader för planerings- och byggnadsprocesserna även förändringar

    av trafikalstring, restider, olycksrisker och mycket annat. Drift- och

    underhållssidan är i detta avseende mycket eftersatt, och det är naturligtvis

    en svaghet, när det gäller att konkurrera om begränsade medel med ekonomiska

    argument. Bristerna gäller inte minst vinterväghållningen

  • 43.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Gregersen, Nils Petter
    Swedish National Road and Transport Research Institute.
    Vinterväghållning i tätort: Trafiksäkerhet och framkomlighet. Bilaga1991Report (Other academic)
  • 44.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Gregersen, Nils Petter
    Swedish National Road and Transport Research Institute.
    Vinterväghållning i tätort: Trafiksäkerhet och framkomlighet. Huvudrapport1991Report (Other academic)
  • 45.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wallman, Carl-Gustaf
    Swedish National Road and Transport Research Institute.
    Gregersen, Nils Petter
    Swedish National Road and Transport Research Institute.
    Vinterväghållning i tätort: Trafiksäkerhet och framkomlighet. Sammandrag1991Report (Other academic)
  • 46.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wiklund, Mats
    Swedish National Road and Transport Research Institute.
    Väglagsobservationers representativitet1994Report (Other academic)
  • 47.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Wretling, Peter
    Swedish National Road and Transport Research Institute.
    Beräkning av väglagsfördelningar för vintrarna 1993/94 - 1996/971998Report (Other academic)
  • 48.
    Möller, Staffan
    et al.
    Swedish National Road and Transport Research Institute.
    Öberg, Gudrun
    Swedish National Road and Transport Research Institute.
    Instruktion för väglagsobservationer1990Report (Other academic)
  • 49.
    Nygårdhs, Sara
    et al.
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Halkvarnare för applicering på vägbanan: test av prototyp i laboratorium och i fält2008Report (Other (popular science, discussion, etc.))
    Abstract [en]

    In order to draw the attention of drivers to slippery conditions, ice warning sensors for application on carriageways have been developed. These are expected to react to the temperature of the road surface, which would be an advance compared with existing warning sensors in the vehicle that measure the air temperature. The aim of this project is to investigate the function of these types of ice warning sensors. This will be done both in a laboratory environment and in the field in the winter before and after the warning sensor has been exposed to the effect of studded tyres, snow ploughs and salting. The type of ice warning sensor that was available consisted of a yellow background plate with a symbol in the form of a snow star punched out from the middle. According to the manufacturer, this symbol was to change colour, from yellow to dark orange, at a temperature of +2°C. The test was divided into three stages, preliminary field tests on roads without traffic (Stage 1), laboratory tests in a controlled climate room (Stage 2), and field tests on roads both with and without traffic (Stage 3).

  • 50.
    Thunberg, Börje
    et al.
    Swedish National Road and Transport Research Institute.
    Hammarström, Ulf
    Swedish National Road and Transport Research Institute.
    Karlsson, Bo
    Swedish National Road and Transport Research Institute.
    Möller, Staffan
    Swedish National Road and Transport Research Institute.
    Perby, Harald
    Swedish National Road and Transport Research Institute.
    Trafik och avgasutsläpp - utblick mot 2015: Beräkningar av avgasutsläpp under olika förutsättningar1990Report (Other academic)
12 1 - 50 of 53
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf