Publications
Change search
Refine search result
12 1 - 50 of 54
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.
    Dahlstedt, Sven
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Åtgärder för att öka motorcyklars synbarhet i dagsljus: Sammanfattning av en undersökning (Some measures to increase motorcycle visibility in daylight)1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 2.
    Helmers, G
    Swedish National Road and Transport Research Institute.
    Upptäckt av hinder och visuell ledning i fordonsbelysning1982Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 3.
    Helmers, G
    Swedish National Road and Transport Research Institute.
    Vägens visuella ledning i mörker1978Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 4.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Nilsson, B
    Swedish National Road and Transport Research Institute.
    Werner, G
    Swedish National Road and Transport Research Institute.
    Trafiksignalers synbarhet (Visibility of traffic light signals)1984Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 5.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Törnros, J
    Swedish National Road and Transport Research Institute.
    Högt placerade, extra bromsljus: Litteraturstudie och analys (High mounted, supplementary brake lights: A literature study and analysis)1983Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 6.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, U
    Swedish National Road and Transport Research Institute.
    Inverkan på väglagets smutsighet: Försök med osaltade vägar vintern 1980/811982Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 7.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, U
    Swedish National Road and Transport Research Institute.
    Siktsträcka i halvljus till hinder på torra vägbanor av varierande ljushet1980Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 8.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, U
    Swedish National Road and Transport Research Institute.
    Visibility effects of a rapidly fading high beam as an option to the ordinary low beam1984Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 9.
    Helmers, G
    et al.
    Swedish National Road and Transport Research Institute.
    Åberg, L
    Swedish National Road and Transport Research Institute.
    Förarbeteende i gatukorsningar i relation till företrädesregler och vägutformning: En explorativ studie1978Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 10.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Akustiska trafiksignaler: Hur bör de vara utformade?1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 11.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Daytime running lights1991Report (Other (popular science, discussion, etc.))
  • 12.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Daytime running lights: A potent traffic safety measure?1988Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 13.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Forskningsplan för utvärdering av högt placerat extra bromsljus jämte dag- och nattnivå hos signalljus1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 14.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Förslag till forskningsprogram inom ämnesområdet synbarhet i trafik1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 15.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    The effect of Vorfeld-luminance on visibility distances to targets on the road1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 16.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Fernlund, Magnus
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Optimisation of the low beam pattern of illumination: Some experimental results related to the illumination above the cut-off1990Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 17.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Henriksson, Per
    Swedish National Road and Transport Research Institute.
    Hakamies-Blomqvist, Liisa
    Swedish National Road and Transport Research Institute.
    Trafikmiljö för äldre bilförare: analys och rekommendationer utifrån en litteraturstudie2004Report (Other academic)
    Abstract [sv]

    The report begins with a short description of the state of knowledge at

    present, and of the age-related functional impairments that affect car

    driving. Two explanatory models are described as to why accidents occur.

    After that, there is a discussion of what general principles should apply to

    simplify the task of driving. The main part of the report consists of a

    run-through of the research literature, focusing on the ability of older car

    drivers to observe and familiarise themselves in traffic. In that respect,

    results and conclusions/recommendations have been presented as regards how

    road junctions and roads should be designed, and how the design and location

    of signs, traffic signals and road markings should be executed in order that

    the requirements of older people may be satisfied. Because only the external

    traffic environment has been dealt with in this study, such things as vehicle

    design or intelligent transport systems (ITS) solutions in the vehicle itself

    are not discussed. In the concluding chapter, some design principles for

    roads and elements of the road environment are given, which can be read

    independently as the principles apply to all car drivers.

    Download full text (pdf)
    FULLTEXT01
  • 18.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Herland, Lisa
    Swedish National Road and Transport Research Institute.
    Minnesanteckningar från "miniseminarier" om omledning, utformning av lokaliseringsmärken och placering av vägmärken1998Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 19.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Herland, Lisa
    Swedish National Road and Transport Research Institute.
    Vägvisning: bör servicevägvisning separeras från övrig vägvisning?1997Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 20.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Detection distances to obstacles on the road seen through windscreens in different states of wear1988Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 21.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Räfflade kantlinjer: kontroll av vägrenens användning genom åtgärder som gör det obekvämt att köra på den1993Report (Other academic)
    Download full text (pdf)
    fulltext
  • 22.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Siktsträcka i halvljus till hinder på torra och våta vägbanor relaterade till vägbanornas reflexionsegenskaper1992Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 23.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Siktsträcka till reflex vid fordonsmöte i mörkertrafik1987Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 24.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Siktsträcka till vägmarkering i fordonsbelysning1991Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 25.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Visibility distances to retroreflectors in opposing situations between two motor vehicles at night1989Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 26.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Lauridsen, Ib
    Swedish National Road and Transport Research Institute.
    Åldring av retroreflekterande folier för vägmärken: resultat efter 3 års exponering. Delrapport, mars 20012001Report (Other academic)
    Abstract [sv]

    Projektet genomförs i nordisk samverken inom NMF

    (NordiskMörkertrafikForskning). Alla reflex-folier

    för vägmärken, som fanns på den nordiska marknaden 1997, har monterats på

    identiskt lika

    provskyltar som exponeras för trafik utefter landsväg på 9 provplatser:

    Damnark 2, Finland 2,

    Island 1, Norge 2 och Sverige 2. Provplatserna är valda så att de täcker in

    en stor klimatvariation.

    Efter "nymätning" vid utsättningen av provskyltarna 1997 görs mätning av

    retroreflexionen hos

    de rengjorda folierna under sensommaren varje år. Dessa mätningar har under

    år 2000 kompletterats

    med färgmätningar på ett antal provskyltar.

    I rapporten redovisas resultaten efter 3 års exponering.

    Projektet fortsätter.

    Download full text (pdf)
    FULLTEXT01
  • 27.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Herland, Lisa
    Swedish National Road and Transport Research Institute.
    Vägmärkens sannolika "livslängd" och minsta godtagbara retroreflexion1999Report (Other (popular science, discussion, etc.))
    Download full text (pdf)
    FULLTEXT01
  • 28.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Lönegren, Bo
    Swedish National Road and Transport Research Institute.
    Den svenska delen av NKT-projektet "Registrering av faktisk skiltbruk": Rapport från åtta svenska vägsträckor1990Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 29.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Nilsson, Göran
    Swedish National Road and Transport Research Institute.
    Regarding criticism about evaluations of daytime running lights (DRL) based on Finnish and Swedish accident statistics, reported by the Swedish Road and Traffic Research Institute (VTI)1989Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 30.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Peterson, Alfi
    Werner, Gösta
    Swedish National Road and Transport Research Institute.
    Traffic signals: Swedish regulations for traffic signals, measurement methods and research activities1991Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 31.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Rumar, Kåre
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    A proposal for a systems approach to the optimization of the low beam light distribution1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 32.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Runersjö, Lennart
    Hur långt åt sidan kan vägmärken/skyltar stå för att bilföraren skall kunna avläsa dem?: En pilotstudie1993Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 33.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Törnros, Jan
    Swedish National Road and Transport Research Institute.
    Effekt av övergångskurvor på förares säkerhetsmarginal samt inverkan av träning: ett försök i körsimulator2006Report (Other academic)
    Abstract [sv]

    Sharp curves constitute a significant safety risk. The question is if it is possible to design sharp curves in such a way that drivers pass them with greater safety margins? In this work we studied the effect of transition curves (in the form of clothoides) added to the constant radius curve segment on drivers´ choice of speed and maximal lateral acceleration. The study was carried out in VTI´s driving simulator II. Influence on the results of the subjects´ experience and training in driving the simulator was studied by repetition of the first experimental session for all subjects on each of the following two working days. The results showed, firstly, that the drivers chose higher speeds in curves with clothoides, secondly, that there was no difference in maximal lateral acceleration, and finally, that these results were not influenced by training.

    Download full text (pdf)
    FULLTEXT01
  • 34.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Törnros, Jan
    Swedish National Road and Transport Research Institute.
    Effekt på hastighet och sidoacceleration av läget hos rotationscentrum för snäva kurvors skevning samt inverkan av träning: ett försök i körsimulator2004Report (Other academic)
    Abstract [sv]

    Sharp curves constitute a significant safety risk. The question is if it is

    possible to design sharp curves in such a way that drivers pass them with

    greater safety margins? In this work we studied if the drivers´ choice of

    speed and side acceleration will change with the location of the centre of

    rotation for banking of sharp curves. Influence of training was studied by

    repetition of the first experimental session during each of the following

    three working days for all subjects. The study was carried out in VTI´s

    driving simulator (Model I). The results show firstly, that the location of

    the centre of rotation for banking of sharp curves influenced the drivers´

    choice of speed and side acceleration and secondly, that these results were

    not influenced by training.

    Download full text (pdf)
    FULLTEXT01
  • 35.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Werner, Gösta
    Swedish National Road and Transport Research Institute.
    Hur förändras trafiksignaler i drift?: Effekter av driftstid i olika trafikmiljöer. Slutrapport1992Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 36.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Saltningens inverkan på väglagets smutsighet1986Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 37.
    Helmers, Gabriel
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Lundkvist, Sven-Olof
    Swedish National Road and Transport Research Institute.
    Upptäcktsavstånd till hinder på vägen i UV-ljus: Mätning i en simulerad fullskalig trafiksituation1993Report (Other academic)
  • 38.
    Herland, Lisa
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Cirkulationsplatser - utformning och funktion: svenska och utländska rekommendationer och utformningsregler jämte analys och kommentarer2002Report (Other academic)
    Abstract [sv]

    This literature review aims to survey Swedish and foreign design solutions to

    meet mainly speed

    and accessibility requirements of roundabouts and to see if foreign

    experiences are relevant for

    Swedish conditions. Great importance has also been given to studying to what

    extent there are

    "functional categories" of roundabouts.

    The survey shows that lower speed and single lane in roundabouts improve

    traffic safety.

    Furthermore that there are good possibilities to control speed through design

    e.g. using narrow,

    radial entries and exits with small entry radius, entry and exit deflection

    to the left, design for an

    entry path curvature with small radius and traffic island.

    The survey also shows that give way regulations between vulnerable road users

    and motor

    vehicles in Sweden can be made clearer.

    The idea of dividing roundabouts and the entire traffic system into distinct

    "functional

    categories" is to improve traffic safety by decreasing the risk of the road

    user to misunderstand the

    situation. To create good categories of roundabouts it ought to be

    investigated what is needed and

    how it can be mediated to the road user what function category roundabout he

    is in. Several

    countries have, just as Sweden, a not very pronounced category classification

    of roundabouts.

    Download full text (pdf)
    FULLTEXT01
  • 39.
    Herland, Lisa
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Jämförelse av typsnitt för lokaliseringsmärken för vägvisning1997Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 40.
    Lundkvist, S-O
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, G
    Swedish National Road and Transport Research Institute.
    Ytterbom, U
    Swedish National Road and Transport Research Institute.
    Specific luminance measurements of road markings and road surfaces in the field: Comparisons between instruments1980Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 41.
    Lundkvist, S-O
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Ströljusluminans i vindrutor1987Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 42.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Reflexfoliers retroreflexion efter exponering i trafikmiljön1993Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 43.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Siktsträcka till hinder vid nedsatt syn och/eller sliten vindruta1993Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 44.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Vägmärkens funktion1999Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 45.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Löfving, Sten
    Contrast reductions in windscreens1987Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 46.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Nilsson, Berit
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Runersjö, Lennart
    Swedish National Road and Transport Research Institute.
    Lauridsen, Ib
    Swedish National Road and Transport Research Institute.
    Heldragen kantlinje på motortrafikled1990Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 47.
    Lundkvist, Sven-Olof
    et al.
    Swedish National Road and Transport Research Institute.
    Ytterbom, Uno
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Control of validity and reliability of stray-light luminance measurements in windscreens1988Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 48.
    Nygårdhs, Sara
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Helmers, Gabriel
    VMS - Variable Message Signs: A literature review2007Report (Other academic)
    Abstract [sv]

    This literature review is primarily aimed at describing studies that deal with the interaction between driver behaviour and variable message signs, VMS. The collected references are, for the most part, published in Europe or studies about European conditions, published during the years of 2000-2005. Areas treated in the study are effects on driver behaviour, driver attitudes, design, understanding and recall of VMS, and accidents and regulations concerning VMS. The literature review is supplemented by a behavioural background and recommendations from a behavioural science perspective.

    Download full text (pdf)
    fulltext
  • 49.
    Pettersson, Hans Erik
    et al.
    Swedish National Road and Transport Research Institute.
    Harms, Lisbeth
    Swedish National Road and Transport Research Institute.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    Trafikantbeteende och vägmiljöegenskaper: En begreppslig referensram1992Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 50. Tignor, Samuel C
    et al.
    Helmers, Gabriel
    Swedish National Road and Transport Research Institute.
    van der Horst, Richard
    An international development of a driver-centered guideline for road design2000Report (Other (popular science, discussion, etc.))
12 1 - 50 of 54
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