Publications
Change search
Refine search result
12 1 - 50 of 60
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • 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. Adesiyun, Adewole
    et al.
    Bezuglyi, Artem
    Bidnenko, Natalya
    Laszlo, Gaspar
    Golovko, Sergyi
    Kraszewski, Cezary
    Krayushkina, Kateryna
    Kushnir, Olexander
    Kuttah, Dina K
    Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
    Niska, Anna
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Szpikowski, Miroslaw
    Andrezj, Urbanik
    Voloshyna, Iryna
    Vozniuk, Andrii
    Vyrozhemsky, Valeriy
    Short-term Research Visits2014Report (Other (popular science, discussion, etc.))
  • 2.
    Ahlström, Christer
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
    Bolling, Anne
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Eriksson, Olle
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Andersson, Anders
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Validating speed and road surface realism in VTI driving simulator III2012Report (Other academic)
    Abstract [en]

    New simulator models concerning vibration, noise and graphics have been designed and implemented in the VTI Simulator III. The objective of this study is to validate this simulator in terms of road surface realism. Twenty-four drivers participated in the study and drove the same route both in the simulator and on real roads. Three road sections ranging from very smooth to rather uneven were incorporated in the design. The comparison included the objective driving parameter speed as well as subjective parameters from questionnaires and rating scales (evenness, quietness and comfort level). A road section with five speed limit changes was of particular interest in the analyses. No statistically significant difference could be found between the simulator and the car, neither in the parameter speed (in sections with no speed limit changes) nor in the ratings evenness and quietness. Despite similar speed profiles surrounding the speed limit signs, there was a statistically significant difference between the speed in the car and in the simulator, with more rapid accelerations and decelerations in the simulator. The comfort rating was shown to be higher in the car compared to the simulator, but in both cases the general trend showed higher comfort on smoother roads. These results indicate absolute validity for the ratings evenness and quietness, and for the measure speed, and relative validity for comfort and speed surrounding speed limit signs.

  • 3.
    Andersson, Gunnar
    et al.
    Swedish National Road and Transport Research Institute.
    Nilsson, Göran
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Undersökning av bilägares attityder till trafikövervakning: Resultat från en enkätundersökning till ett urval av bilägare november 19911992Report (Other academic)
  • 4.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Falkmer, Torbjörn
    Swedish National Road and Transport Research Institute.
    Forsman, Åsa
    Swedish National Road and Transport Research Institute.
    Gustafsson, Susanne
    Swedish National Road and Transport Research Institute.
    Matstoms, Ylva
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Turbell, Thomas
    Swedish National Road and Transport Research Institute.
    Wenäll, Jan
    Swedish National Road and Transport Research Institute.
    Child safety in cars: Literature review2003Report (Other academic)
    Abstract [en]

    In order to study child safety in cars, international literature was reviewed with respect to road vehicle transportation for children, with the focus being on the age up to 12 years. The review included literature in English and Swedish. Furthermore, the review was limited to focus on results from Australia, the U.K., the USA and Sweden. To ensure that all children are protected as passengers in cars, several aspects needed to be considered.

    Within this study, the focus was, hence, on legal aspects and recommendations, traffic fatalities and serious injuries, the safety consequences for children due to the car development (airbags (SRS) and installation systems), use and misuse of child restraint systems (CRS) regarding medical, technical and user aspects, measurements for improvements, e.g. campaigns and, finally, children with disabilities. The review focused mainly on literature from 1990 until today. The main conclusions were that:

    • Available statistics show that rearward facing CRS is a good preventive measure to take for enhancement of traffic safety.
    • Impacts from the in-safety development of cars on choosing and mounting safety devices for children were found to be a crucial issue.
    • Children exposed to an airbag deployment can be fatally injured, despite being seated in an approved child restraint system.
    • In Sweden and the U.K. the level of child restraint usage among infants and small children was found to be at least 95% in the front seat and approximately at the same level in the rear seat. Even though the levels of usage in several countries were high, the level of misuse was alarmingly high (90%).
    • The road transportation of children with disabilities was found to be complex and insufficiently described in the literature.
  • 5.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Forsberg, Inger
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    NTF:s projekt "Äldre oskyddade trafikanter": en utvärdering av lokala trafiksäkerhetsombuds och väghållares åsikter och erfarenheter2003Report (Other academic)
    Abstract [sv]

    VTI har fått i uppdrag att utvärdera NTF:s projekt "Äldre oskyddade

    trafikanter". NTF:s syfte med projektet kan kortfattat beskrivas enligt

    följande: - att via information öka äldres medvetenhet och engagemang kring

    viktiga trafiksäkerhetsfrågor - att via opinionsgrupper dels ta tillvara

    äldres erfarenheter, dels uppnå faktiska förändringar i den fysiska miljön

    som främjar äldres trafiksäkerhet och tillgänglighet som oskyddade

    trafikanter.

    Föreliggande utvärdering har haft följande syfte: - utvärdera i vilken

    utsträckning de äldre oskyddade trafikanterna har blivit mer engagerade och

    medvetna om trafiksäkerhetsfrågor med anledning av projektet - utvärdera i

    vilken utsträckning de äldre oskyddade trafikanterna anser att de har kunnat

    påverka trafiksäkerheten i sin närmiljö inom ramen för projektet- utvärdera

    väghållarnas syn på: - projektet i stort, innehållet i rapporterna, -

    rapporternas relevans för trafiksäkerheten, - nyttan av kartläggningen, - i

    vilken utsträckning åtgärder vidtagits.

  • 6.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
    Forsman, Åsa
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Gustafsson, Susanne
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Barn i bil - socioekonomiska faktorer: litteratur- och enkätstudie2003Report (Other academic)
    Abstract [en]

    The aim of the study was to identify relationships between no use/misuse of safety belt/child restraints and socio-economic aspects. The conclusions from the study will provide a basis for the future development of information and campaigns to increase the correct use of restraints. The study consisted of two parts: a literature review and a questionnaire. The questionnaire was sent to a random sample of 2,010 parents of children aged 2 months–9 years. The response rate was about 70 per cent. The level of misuse among small children was lower than among older children and lower in the family car compared with the overall situation. Parents who neglected to use the safety belts themselves were more likely to be careless in ensuring that the child used recommended restraint. The results also indicated that parents who were more likely to act in contradiction with rules and recommendation concerning use of restraints were also more likely to allow their children to travel without safety belts.

  • 7.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Metod för att studera cykelhjälmsanvändningen hos barn i åldern 2-10 år: ett pilotförsök1998Report (Other academic)
  • 8.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Skylt vid skolskjutshållplatser i Linköping: en utvärdering av barns, bussförares och förbipasserandes uppfattningar2011Report (Other academic)
    Abstract [en]

    Linköping municipality has in autumn 2010 and spring 2011 made an inventory of bus stop sites for school children within the municipality. At those locations where no bus stop sign existed, a new type of sign was set up to mark the school bus stop site.

    This evaluation aims to highlight the positive and negative aspects of experience and perception of the new sign. The evaluation has taken place by means of in-depth interviews with a sample of children in the schools in Nykil, Vreta Kloster and Ljungsbro. In addition, questionnaires were sent to bus drivers driving in those areas, and telephone interviews were done with private motorists passing the designated stop sites.

    The results indicate that the sign can contribute to an increased sense of security and safety among children, it increases the possibility for bus drivers to know where the children are to be picked up and it contributes to the passing vehicles in terms of knowing that they can expect children in the vicinity of the sign. There is, however, reason to look at why not all children are picked up at their dedicated bus stop and to consider how information on the new signs can be designed.

  • 9.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Säkerheten under Säkereken: en utvärdering av satsningen på trafiksäkerhetsinformation anpassad till småbarnsföräldrar2001Report (Other academic)
    Abstract [en]

    A traffic safety campaign among parents with children in the age of 0-–3 years has been evaluated. The study indicates that the campaign has, in some respects, had a positive effect on the frequency of the use of child safety restraints. Nevertheless, more has to be done, until every child in the region uses the recommended type of restraint.

     A questionnaire has been sent to a random sample of all those families, which have voluntarily joined a traffic safety club, connected to the campaign. Questions about the background of the family and the use and misuse of child restraints and seatbelts have been asked. Questions were also asked concerning traffic safety information received and knowledge about rules and recommendations. The families have been divided into three age groups, on the basis of the recommended child restraint for each age group.  The answers have been compared with the results of an earlier study, among a random sample of all families in the same region of Sweden.

     The most commonly requested piece of information that the parents asked for were those statistics relating to child injuries connected to types of restraint. No significant differences were found in the percentages of families who reported that they had received or looked for information. One conclusion drawn was that the information available had not been received or absorbed by all the families surveyed, which gives cause of concern and necessitates further action.

     The evaluated campaign was carried out within the frame of “Säkereken”, a traffic safety program in Blekinge, Sweden.

  • 10.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Wretling, Peter
    Swedish National Road and Transport Research Institute.
    Trafiksäkerhet vid skolskjutsning: diskussion i fokusgrupper2000Report (Other (popular science, discussion, etc.))
    Abstract [en]

    The aim of the project is to generate hypotheses about public requirements and expectations concerning the issue of school transport and road safety. Information obtained has been used in questionnaire-based studies. It is hoped that the study will increase understanding of the measures that can realistically be proposed to improve the safety of school transport. The project is based on group discussions in which the focus has been the road safety aspects of school transport. Players involved in the area of school transport have met to discuss this question. The groups consisted of municipal representatives, contractors, drivers, children, parents and representatives from the school.

    During the discussions several potential areas for action have emerged. The following measures would greatly improve the safety of school transport:

    • Driver training should be obligatory

    • Laws regulating criteria for school transport should be reviewed - how is road safety to be observed and by whom?

    • School transport vehicles should be clearly signed and have a uniform design

    • Seatbelts should be fitted in all school transport vehicles and crash tests carried out

    • Procurement routines should be changed so that procurement occurs "nearer" those performing the service

    • A route plan should be drawn up with photographs of the stops and other relevant information.

    • The same instructions should be issued to drivers and pupils concerning the rules that apply

  • 11.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Yahya, Mohammad-Reza
    Swedish National Road and Transport Research Institute.
    Barns säkerhet i bil: en enkätundersökning genomförd i Blekinge1999Report (Other academic)
  • 12.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Yahya, Mohammad-Reza
    Swedish National Road and Transport Research Institute.
    Barns säkerhet i bil: en enkätundersökning i västra Sverige1999Report (Other academic)
  • 13.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Yahya, Mohammad-Reza
    Swedish National Road and Transport Research Institute.
    Trafiksäkerhet vid skolskjutsning: en enkät till förare2002Report (Other academic)
  • 14.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Örtlund, Rose-Marie
    Information till landstingspersonal om barns säkerhet i bil: delutvärdering av projektet "Bilbarnstolar i Dalarna"2001Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Trafiksäkerhetsinformation via Landstinget Dalarna och Dalarnas trafiksäkerhetsförbund kan vara ett effektivt sätt att nå de flesta småbarnsföräldrar i länet. Undersökningen har visat att personalen har möjlighet att informera föräldrar i de lägen när det är dags för föräldrarna att fundera på att skaffa babyskydd eller byta till bilbarnstol, bältesstol eller bälteskudde.

    I en undersökning riktad till personal inom Landstinget Dalarna har frågor ställts angående den information de fått från Dalarnas Trafiksäkerhetsförbund (DTF). Innehållet i DTF:s information har varierat beroende på om personalen varit verksam på mödravårdscentraler (MVC), BB eller barnavårdscentraler (BVC).

    Innan arbetet med att utforma enkäten påbörjades, samlades en grupp kvinnor som samtliga var verksamma på MVC, BB respektive BVC för att diskutera barns säkerhet i bil. Diskussionen berörde dels den information de fått från DTF:s, dels den information de själva ger till föräldrarna. Innehållet i diskussionen utgjorde grunden till enkäten som sedan utformades i samråd med DTF. Utskicket ställdes till 219 personer, varav cirka hälften verksamma på BVC. Mindre än 15 % avstod från att besvara enkäten.

  • 15.
    Anund, Anna
    et al.
    Swedish National Road and Transport Research Institute.
    Yahya, Mohammad-Reza
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Marknadsundersökning: skyddsutrustning för barn i bil1998Report (Other academic)
  • 16.
    Anund, Per
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    PREC95, ett program för bearbetning och analys av trafikmätningsdata: Beskrivning och manual1995Report (Other academic)
  • 17.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute.
    Junghard, Ola
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    VTI trafiksimuleringsmodell - reviderad användarhandledning1988Report (Other academic)
  • 18.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Lidström, Mats
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Hjort, Mattias
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Nordmark, Staffan
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Sehammar, Håkan
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Sjögren, Leif
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Genell, Anders
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Improving the realism in the VTI driving simulators: Shake final report2012Report (Other academic)
    Abstract [en]

    The Swedish Road and Transport Research Institute (VTI) has three advanced moving base driving simulators. The aim of this project was to develop and implement new models concerning vibration, noise and graphics in order to improve the realism in the simulators. Moreover, a validation study was to be conducted.

    Within the frame of the project the following were achieved:

    • improvement of the tyre/road vibration models,
    • •improvement of the motion system by changing the rotation centre,
    • •improvement of the noise module facilitating reproduction of noise from tyre/road,
    • •synchronization of the impressions from graphics, noise and vibrations caused by the road surface.

    The validity of the models was tested in the VTI Simulator III. Statistical testing of differences between the car and the simulator indicated absolute validity for the subjective ratings of evenness and noise level and the objective measure speed, with the exception of areas surrounding speed limit signs where only relative validity was found. Relative validity was also indicated for the variable overall comfort. The results from the different validations show that the improvements have been successful and the driver in the simulator can now see, hear and feel the sensation of any road surface irregularities exactly when the wheels hit that part of the road. However, several improvements in the simulator models can still be desired.

  • 19.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Slitna vindrutor: simulatorstudie2009Report (Other academic)
    Abstract [sv]

    One traffic safety problem that has been observed in several studies is the wear of the windscreens. The risk of dazzling increases when driving with a worn windscreen, which may have the consequence that the driver does not discover objects or people on the road in front of the vehicle. The behaviour of 24 drivers has been studied in a driving simulator using three windscreens with different level of usage. To achieve dazzling in the driving simulator a lamp was mounted in front of the windscreen in the simulator. The lamp simulated a setting sun. When the driver had to make way for an obstacle on the road, this was more difficult with the worn windscreens, despite the lower speed. The drivers discovered the obstacles later, used a harder brake power and took a more powerful action to avoid the obstacle. Altogether this indicates a more risky driving behaviour, in other words decreased traffic safety. The sight length to a cone was also measured. The results showed that the sight length became shorter with worn windscreen. When the drivers were asked to express their opinion about the experiment, they assessed both the simulated environment and the driving task as relatively realistic. Even though this is a simulated situation, with its limitations, the results indicate that driving under dazzling conditions with a worn windscreen has negative effects on driver behaviour.

  • 20.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    State-of-the-art för utformning av vägarbetsplatser: förslag till nya lösningar2008Report (Other academic)
    Abstract [en]

    On behalf of the Swedish Road Administration a state-of-the-art study concerning work zone safety has been carried out. Literature describing new methods and evaluations of methods has been studied. Experts, working with work zone safety, were interviewed and gave their view of the safety problems at work zones. The aim of the study was to find new and effective measures to ensure safety at road work zones.

  • 21.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Worn windscreens: simulator study2009Report (Other academic)
    Abstract [sv]

    One traffic safety problem that has been observed in several studies is the wear of the windscreens. The risk of dazzling increases when driving with a worn windscreen, which may have the consequence that the driver does not discover objects or people on the road in front of the vehicle. The behaviour of 24 drivers has been studied in a driving simulator using three windscreens with different level of usage. To achieve dazzling in the driving simulator a lamp was mounted in front of the windscreen in the simulator. The lamp simulated a setting sun. When the driver had to make way for an obstacle on the road, this was more difficult with the worn windscreens, despite the lower speed. The drivers discovered the obstacles later, used a harder brake power and took a more powerful action to avoid the obstacle. Altogether this indicates a more risky driving behaviour, in other words decreased traffic safety. The sight length to a cone was also measured. The results showed that the sight length became shorter with worn windscreen. When the drivers were asked to express their opinion about the experiment, they assessed both the simulated environment and the driving task as relatively realistic. Even though this is a simulated situation, with its limitations, the results indicate that driving under dazzling conditions with a worn windscreen has negative effects on driver behaviour.

  • 22.
    Bolling, Anne
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Jansson, Jonas
    Swedish National Road and Transport Research Institute, Traffic and road users.
    Simulating the effect of low lying sun and worn windscreens in a driving simulator2010In: Proceedings of the driving simulation conference Europe 2010: trends in driving simulation design and experiments, Bron: Institut national de recherche sur les transports et leur securite, INRETS , 2010, p. 23-31Conference paper (Other academic)
  • 23.
    Carlsson, Arne
    et al.
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Översiktlig beräkning av antalet omkörningar längs E61987Report (Other academic)
  • 24.
    Eriksson, Jenny
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Henriksson, Per
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Rogerson, Sara
    Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Silvano, Ary P.
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Nilsson, Annika
    Trivector.
    Wahl, Charlotte
    Sweco.
    Ullberg, Martin
    Sweco.
    Adell, Emelie
    Trivector.
    Intressent- och behovsanalys för resvaneundersökningar: resultat från intervjuer och enkätundersökning2017Report (Other academic)
    Abstract [en]

    In Sweden, national travel surveys are regularly carried out by Transport Analysis, a governmental agency. However, in the last decade travel survey studies have suffered with problems such as high rate of non-response, coverage, costs and reporting burden. Therefore, this project is underway aimed at investigating and proposing new methods for data collection on people’s mobility. The project is divided into five deliverables (work packages – WP), of which this report is the second one (WP2). The purpose is to carry out an analysis of stakeholders’ needs regarding future requirements of travel surveys. This includes identifying the questions that travel surveys can answer.

    Telephone interviews have been conducted with 20 stakeholder representatives and internet-based questionnaires were sent to 142 respondents (response 81 persons, response rate 57 percent). The stakeholders’ representatives were classified into three types of organizations: public sector, research organizations and other actors. Based on their own experience, an analysis has been conducted regarding what is requested from the national travel survey. The analysis show that key aspects of today’s and tomorrow’s travel survey users include (i) mode choice, (ii) trip purpose, (iii) how travel behavior changes over time, and (iv) how different groups travel. To be able to answer these questions, both individual and travel information are required.

  • 25.
    Eriksson, Jenny
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Niska, Anna
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Gustafsson, Susanne
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST. NTF.
    Forsman, Åsa
    Swedish National Road and Transport Research Institute, Traffic and road users, Trafiksäkerhet och trafiksystem, TST.
    Cyklisters hastigheter: Kartläggning, mätningar och observation2017Report (Other academic)
    Abstract [en]

    Many different road users share space on pedestrian and cycle paths, and their speeds may differ greatly. Differences in speed can complicate the interactions between road users which in turn may cause incidents and accidents. The purpose of this project is to enhance the understanding of cycle speeds on the pedestrian and cycle paths and to understand how the cyclists adapt their speed to other road users and to the surrounding environment. Three different data collection methods were used: Previous measurements of cycle speed and flow in three different municipalities, Eskilstuna, Linköping and Stockholm (18 locations); new measurements in Linköping (4 locations) and Stockholm (1 location); and new observation studies of bicycle types at these locations.

    The average speed of cyclists on the paths selected varies between 15–25 kilometer per hour. As expected, the lower average speeds were found in the uphill directions, near intersections and in paths with high pedestrian flow. The higher speeds were found in downhill directions and on commuter routes. No general increase in cyclists’ speed was found between years, neither in mean speed nor in proportion of high-speed cyclists. However, bicycle flow has increased in many of the locations over the years. This implies that the number of cyclists holding a high speed, above 30 kilometer per hour, will be increased, even if the proportion of high-speed cyclists stays the same. This may mistakenly be interpreted as increased mean speed. About 70–95 percent of the road users observed on the pedestrian and cycling paths were cyclists and roughly 5–30 percent were pedestrians. An extremely small proportion were mopeds, 0.2 percent. The comfort bike was the most common type, followed by the trekking bike. The electric and racer bike occurred in all locations, but varied 1–10 percent respectively 1–15 percent. The relationship between the type of bike and the speed claim is not entirely clear, but cyclists on the electrical and racer bikes generally have higher speed claims.

  • 26.
    Eriksson, Jenny
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Vintervädrets betydelse för att fotgängare skadas i singelolyckor2015Report (Other academic)
    Abstract [en]

    The impact of the winter weather on injuries in single-pedestrian accidents have been studied using data from the Swedish emergency hospitals, and from the Swedish Transport Administration’s information system on roads weather. We have studied the winter seasons 2008/2009 until 2013/2014. The study’s purpose was to examine the weather that was prevailing at the time of the pedestrian injury and during the 24 hours before the accident. Two populations of single-pedestrian accidents have been analysed; all who have reported that slippery surface due to snow or ice was a contributing cause of the injury; all who have been injured in urban areas in the four selected municipalities: Umeå, Stockholm, Gothenburg and Malmö. A connection between the injury data and weather data were made both for the hours when the injury occurred, and for the 24-hour period prior to the injury. Compared to non-urban areas, in urban areas there were more than 10 times as many who were injured in single-pedestrian accidents due to slippery road condition (snow /ice). This study shows that female pedestrians are injured due to snowy or icy road surface to a greater extent than men. The females’ injuries are also more severe. When comparing the distribution of different accident causes between males and females an analysis of the odds ratio showed that males have a higher proportion of injuries due to snowy or icy road surface compared to females. Prioritizing maintenance on pedestrian and cycle paths during the winter season seems to be beneficial both in terms of injury reductions and in terms of costs for health care due to injuries from slipping on snowy / icy surfaces. The study indicates the possibility of using the weather data of the type used in this study as a tool in the planning and execution of winter maintenance.

  • 27.
    Eriksson, Olle
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Motorcykelflöden sommarhalvåren 2006 – 2017: teknisk rapport, version 1.02018Report (Other academic)
    Abstract [sv]

    Trafikverket ser ett ökat behov av uppgifter om trafikflöden och fordonshastigheter för motorcyklar, speciellt med avseende på tillförlitliga data inom trafiksäkerhetsområdet. Vid olycksanalys är det till exempel svårt att finna exponeringsdata för motorcykliste. För mc-flöden finns en särskild metod framtagen, se PM ”Beräkningar av mc-flöden på Trafikverkets ÅDT-avsnitt” (Eriksson, 2013).

    Skattningar av trafikflöden tas fram på basis av ett 12-årigt mätprogram för årsmedel-dygnstrafik (ÅDT). Sedan år 2006 skattas även mc-flöde under sommarhalvåret med hjälp av data från mätprogrammet. Skattningar av mc-flöden på de statliga vägarna år 2006–2012 utfördes enligt metoden beskriven i Eriksson (2013). Motsvarande skattningar gjordes även för år 2013–2014 med denna metod, enligt uppgift från Trafikverket. Metoden användes också för skattningar år 2015, men då genomfördes dessutom ytterligare rimlighetskontroller och korrigeringar av data, vilket är beskrivet i teknisk rapport ”Trafikflöden för motorcyklar 2015” (Sörensen och Eriksson, 2016). Metoden vidareutvecklades för skattningarna år 2016, se Sörensen, Henriksson och Yahya (2017).

    Resultaten av mc-flödesskattningarna har rapporterats till Trafikverket i tabellform uppdelade per mätår och vägkategori. Trafikverket har publicerat resultaten i kartor på sin websida.

  • 28.
    Falkmer, Torbjörn
    et al.
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Falkmer, Marita
    Gerland, Gunilla
    Kartläggning av transportsituationen för barn med autismspektrumstörning2001Report (Other academic)
    Abstract [en]

    The transport situation for children with autism-spectrum disorders is unknown in an international, as well as in a Swedish context. In order to investigate it, questionnaires from 1,631 parents with children suffering from autism-spectrum disorders, such as Asperger syndrome and autism, were analysed. The results showed that almost three out of four parents were worried when their child was transported by school transportation or by the Special Transport System (STS). Transports in the family vehicle caused worry among almost half of the parents. Transport adaptation to this particular group of children with disabilities refers merely to implementation of knowledge and a specific, well structured, approach among the drivers towards the children during the ride, rather than to a physical/mechanical adaptation of the vehicles. The parents’ worries were justified by the fact that the children were not transported according to general safety recommendations. Moreover, it was common that the children were transported with unfamiliar drivers, as well as with unknown passengers. These examples show that lack of adaptations for children with autism-spectrum disorders cause unnecessary problems among them and cause worries among their parents. Furthermore, these examples constitute unnecessary obstacles for the children’s transport mobility.

  • 29.
    Forward, Sonja
    et al.
    Swedish National Road and Transport Research Institute.
    Gustafsson, Susanne
    Swedish National Road and Transport Research Institute.
    Loukopoulos, Peter
    Swedish National Road and Transport Research Institute.
    Nyberg, Jonna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Utlandsföddas trafiksäkerhet2009Report (Other academic)
    Abstract [en]

    Swedish traffic accident statistics have previously shown that involvement in accidents differs for people born in Sweden and people born abroad. The main aim of this report is to further illuminate this area through the use of four different studies. The introductory study is a literature review examining ethnicity and different aspects of traffic safety, focussing primarily on speed, accidents, use of seatbelts, alcohol and vulnerable road users. The term ethnicity was defined in different ways in the literature, if it was defined at all, and the term ethnic minorities was used as a collective term. The ways those terms are used complicate comparisons. Nevertheless, certain conclusions could be drawn. For example, the traffic behaviour of immigrants bore the imprint of the traffic norms prevalent in the country in which they grew up. Cultural values, the importance of language and socio-economical factors are dimensions of interest with regard to measures that can improve the traffic safety of immigrants living in Sweden. The second study identified the risk of a traffic accident for people who are born abroad but registered residents of Sweden. The results show that if the population is divided into nine zones, based on the country of birth, there are groups both with a higher risk of accidents than the Swedish-born and groups with a lower risk. Thus, immigrants should not be viewed as a homogeneous group. Furthermore, large parts of the differences can be explained by exposure, education, age and gender, through the use of logistical regression. In the third study a survey based on an extended version of the Theory of Planned Behaviour to predict the intention to speed, use seatbelt and use child restraints. The results show that previous behaviour and the perception of how others behave in traffic were the variables that best explained the intent to break speed regulations. This survey also indicates differences between groups, where the intent to use the seatbelt and protect children in the car was lower amongst some of the immigrants, while the intent to respect the speed limit was lower among the Swedish-born. The results of the survey could thus not unequivocally explain why certain groups identified by the accident analysis ran greater risks. In the fourth study interviews were carried out with seven men born in Iran but residing in Sweden. The subjects discussed were driving, speeding, alcohol and seatbelt use. The results showed that they experienced cultural differences in attitudes and behaviour in traffic, but that these differences gradually faded away. They showed zero tolerance when it came to drinking and driving. However, when it came to speeding and the use of seatbelts this was seen as unacceptable only in some contexts. Based on the compiled results recommendations are given, detailing specific actions that may increase the level of traffic safety among immigrants living in Sweden.

  • 30.
    Forward, Sonja
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Hedström, Ragnar
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Nyberg, Jonna
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Bolling, Anne
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Säkerhet och arbetsmiljö vid väg- och spårarbeten: implementeringsprocessen av nytt regelverk och dess effekter2016Report (Other academic)
    Abstract [en]

    The purpose of this study was, through the use of interviews, case studies, and a reference group meeting to describe and analyze the implementation process of new and revised regulations. This applies to both road and track in their administrative and operational activities within the Swedish Transport Administration and their contractors. The aim was also to analyze the effects the new and revised regulations had on roles and responsibilities but also their own and others' safety. For work on the road, new rules and regulations were established, which became effective as of 1st of January 2013. With regard to rail, a number of measures were implemented in 2011 to improve safety that included changed rules for work on and beside the tracks.

  • 31.
    Gregersen, Nils Petter
    et al.
    Swedish National Road and Transport Research Institute.
    Gustafsson, Susanne
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Nyberg, Jonna
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Stave, Christina
    Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Unga mopedisters olycksinblandning: orsaker och konsekvenser2015Report (Other academic)
    Abstract [en]

    The general aim of this study is to increase knowledge about the processes leading to accidents. This was done with a knowledge review, an in-depth study of moped crashes with serious injuries and an analysis of teenagers’ discussions on the internet about moped riding. Moped accidents are most common among young men. A number of different contributing factors have been identified as important for the possibilities to drive safely and avoid accidents. In addition to skills to maneuver the moped in traffic, other aspects important for motivation and choices before and during driving are presented. This may for example be age, sex, personality, group affiliation, socio economic standing and brain maturation. The statistics on moped sales show that fewer and fewer mopeds are sold in Sweden. The reduction in sales of class I is largest. There are several possible reasons for this, such as new rules for licensing or low economic growth. The reduction is also reflected in a reduction of the number of accident and injured persons over time. The domination by accidents involving 15-year-olds are also decreasing. From the interviews, it is obvious that riding moped in gangs is something that mainly boys are doing. Riding in gangs is also age related since when they are continuing to the gymnasium (high school), other interests than moped riding are taking over, occupying evenings and weekends. From the Internet analysis, it is clear that young people are discussing mopeds and moped riding in many different forums. The topics are spare parts, technical matters, tuning, speeding, helmet use, police chases etc. The discussions may be regarded as a basis for the development of role models and ideal for different subcultures within the moped world. Measures were discussed in the areas of police, rules and regulations, age limits, technical aspects, insurance, education, parental engagement, information campaigns, internet, vehicle classifications, infrastructure and future technical support systems.

  • 32.
    Gustafsson, Susanne
    et al.
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Vogel, Katja
    Swedish National Road and Transport Research Institute.
    Samband mellan socioekonomisk bakgrund och användning av skyddsanordningar för barns säkerhet i bil: en litteraturstudie med resultat från Sverige, Tyskland, USA och Australien2003Report (Other academic)
    Abstract [sv]

    En genomgång av litteratur från Sverige, Tyskland, USA och Australien under

    1990- och 2000-talet rörande barn i bil har utförts. Undersökningens syfte

    var att samla kunskap om skillnader i användning och felanvändning av

    skyddsanordningar för barns säkerhet i bil beroende på sociala, ekonomiska,

    geografiska eller kulturella förhållanden. Vi studerade också om det hade

    genomförts några kampanjer eller andra insatser för att nå ut med information

    till olika grupper i samhället. I föreliggande studie beskrivs resultat från

    olika undersökningar av ickeanvändning samt felanvändning av

    skyddsutrustning. Ickeanvändning av skyddsutrustning, det vill säga att

    bälten inte används samt felanvändning av särskild skyddsutrustning för de

    barn som använder/borde använda det, förekommer i alla länderna.

    Ickeanvändningen av bälte ökar ofta med stigande ålder, liksom

    ickeanvändningen av särskild skyddsutrustning. Det finns en skillnad mellan

    länderna beträffande vilka barn, beroende på ålder och ibland vikt och/eller

    längd, som omfattas av lagar om bälten och särskilda skyddsutrustningar,

    vilket gör det svårt att jämföra de olika länderna. Felanvändning av

    skyddsutrustning är ytterligare ett problem. Det kan innebära både att barnet

    sitter i fel skydd för sin ålder eller vikt eller att utrustningen använts på

    fel sätt, till exempel att bältet inte är tillräckligt sträckt. I den lästa

    litteraturen visas på skillnader i användning och felanvändning av

    skyddsutrustning beroende på socioekonomisk bakgrund. Ickeanvändning och

    felanvändning är vanligare bland de barn vars föräldrar har en låg utbildning

    jämfört med barn till föräldrar med hög utbildning. Likaså är

    ickeanvändningen och felanvändningen av barnens skyddsutrustning lägre i

    hushåll med en högre inkomst jämfört med hushåll med lägre inkomst. Detta

    stöds ytterligare av det faktum att föräldrar som inte använder

    skyddsutrustning till sina barn lägger större vikt på kostnaden för att

    använda skyddsutrustningar till sina barn än föräldrar vars barn är skyddade.

    Barn som reser på landsväg är skyddade i större utsträckning än de som färdas

    i tätort. I flera undersökningar finns resultat som tyder på en större

    ickeanvändning och större felanvändning i folkgrupper med utländsk bakgrund

    eller där språket är ett annat än landets officiella språk. I en amerikansk

    studie omfattande alla delstater framkommer att det finns skillnader mellan

    delstaterna i användning av skyddsanordning för barn 5-14 år. Dessa

    skillnader antas bero på hur lagarna är utformade i de olika delstaterna.

  • 33.
    Gustafsson, Susanne
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Forward, Sonja
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Larsson, Jörgen
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Simonsson, Lennart
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Vadeby, Anna
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Vägtrafikens hastigheter: kunskapsinventering2012Report (Other academic)
    Abstract [en]

    In order to achieve the interim target for road safety it is necessary that compliance of speed limits increases at the road network. VTI has been commissioned by the Swedish Transport Administration to analyse major problems and challenges concerning velocity, and to identify key areas for action.

    Through a review of available knowledge about speed, and gain of new knowledge from focus group discussions we found that different types of incentives are needed for both private motorists and professional drivers to hold the speed.

    Both education and information are important to motivate the driver to act correctly and create a norm in society that deprecates speed violations. However, this should occur in combination with speed monitoring and technical measures.

  • 34.
    Gustafsson, Susanne
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Vinterväghållning för gående: Intervjuer och kartläggning i sju kommuner2016Report (Other academic)
    Abstract [sv]

    På uppdrag av Trafikverket har vi tagit reda på förutsättningarna för att använda VViS-data ur ett kommunalt perspektiv vid planering av vinterväghållning för gående. I begreppet vinterväghållning innefattas både snöröjning och halkbekämpning. VViS är Trafikverkets informationssystem för vägväder. Studien har genomförts med hjälp av

    • informationsinhämtning via webbplatser
    • anteckningsbaserade semi-strukturerade telefonintervjuer
    • frågor via e-post
    • kartstudie

    Intervjuerna har gjorts med företrädare för kommunens vinterväghållning eller ansvar för gång- och cykelbanor samt entreprenörer i sju olika kommuner. Även företrädare för meteorologiska myndigheter/företag har intervjuats. Av resultaten framgår att de viktigaste väderparametrarna i samband med olyckor för gående är frost-halka, is på frysande vägbana, nederbörd på kall vägbana och vädersituationer när temperaturen pendlar kring noll. I samtliga kommuner har den (kommun eller entreprenör) som tar beslutet om snöröjning och/eller halkbekämpning tillgång till information från någon form av vädertjänst genom abonnemang. Genom de tjänster kommunerna/entreprenörerna prenumererat på har de redan idag tillgång till VViS-data, men dessa data är ”förpackade” tillsammans med andra data på ett lättillgängligt och illustrativt sätt. En slutsats från studien är att kommunerna anser sig ha tillräckligt med digital data och därför inte anser sig ha något behov av egna vädermätningsstationer.

  • 35.
    Gustafsson, Susanne
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Eriksson, Olle
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Genell, Anders
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Jägerbrand, Annika
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Ljudvarningar vid vägarbetsplatser för att uppnå sänkta hastigheter: Kartläggning och praktisk utvärdering2014Report (Other academic)
    Abstract [en]

    A project has been carried out to find methods that effectively decrease drivers’ speeds at road work sites through real-time audio warnings. The project consisted of two parts. First, a survey of existing studies took place. The results show that the characteristics of a successful audio alert are female voice, direct and informative messages, an interaction between semantics and acoustics, successively increased intensity, and the dimming of secondary audio distractions. Based on the results of the survey, a practical evaluation of the potential use of audio warnings at road work sites was carried out in a VTI driver simulator. Twenty-two car drivers drove 25 kilometer on a motorway where two road works were placed on the hard shoulder. Half of the subjects were given an audio warning before the first road work and the other half prior to the second roadwork. The audio warning consisted of a sound similar to that of a GPS warning signal, followed by a female voice saying "Warning! Road work within 500 meters. Adjust the speed!". The message was sent via the car's internal speaker system. The speed reducing effect is significant and the average decrease is estimated to be 9–17 km/h greater with audio warning than without. Furthermore, there was still a small effect (0.5–3.3 km h) left of the audio alert after the road works. More results of the simulation tests are presented along with the drivers’ subjective opinions of such systems.

  • 36.
    Hakamies-Blomqvist, Liisa
    et al.
    Swedish National Road and Transport Research Institute.
    Henriksson, Per
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Fyrtiotalisterna som framtida äldre trafikanter2005Report (Other academic)
    Abstract [sv]

    A questionnaire was sent by post to a sample of holders of driving licenses

    who had been born in the year 1944. The questionnaire covered present travel

    habits, expectations regarding the future as older road users, and giving

    lifts to elderly people. By targeting this group, it is anticipated that a

    more correct picture can be obtained of such things as future travel patterns

    compared with the usual method of basing forecasts on today's elderly people.

    As regards present travel patterns, the results showed such things as a

    continuation of the unequal distribution of car driving between males and

    females, that the car dominated as a method of travel, and that the car was

    considered to be necessary more often by men than it was by women.

    Expectations regarding the future were captured by asking the respondent to

    imagine that he or she was 80 years old at the time of filling in the

    questionnaire, and indicating his or her view of the probability of various

    phenomena at that age. Most of the respondents anticipated a rather active

    and mobile old age ahead of them, and the degree of optimism increased with

    increased mileage driven annually. However, over one-third of the women

    considered that it was not at all probable that they would be driving a car

    at the age of 80. Almost half of the respondents gave lifts to older

    relatives and acquaintances regularly, typically up to four times a month.

  • 37.
    Ihs, Anita
    et al.
    Swedish National Road and Transport Research Institute, Infrastructure.
    Bolling, Anne
    Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
    Hansson, Lisa
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Hedström, Ragnar
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Säkerhet vid väg- och spårarbete: en intervjustudie2014Report (Other academic)
    Abstract [en]

    There are rules and regulations that govern how working environment and safety are considered for road and railway works, but despite this a number of accidents and more or less serious incidents happens every year. To get an idea of how safety and working environment related issues are handled in the procurement, planning and implementation of maintenance activities of roads and railways a limited number of interviews with relevant actors have been performed. Purchasers and project managers at the Swedish Transport Administration (STA), as well as entrepreneurs and a union representative at the union SEKO, were interviewed for both the road and the railway side. For the road side, traffic engineers at STA were also interviewed. Based on the results from the interviews a number of problem areas could be identified, of which some are:

    • Dissemination of information about new regulations to all parties at all levels
    • Unclear procedures for self-monitoring, reporting, action on identified deficiencies, follow up and feedback
    • Inadequate procedures for reporting of accidents and incidents as well as for actions taken, follow up and feedback of these
    • The STA nowadays sets skill requirements instead of requirements on specific education/courses, making it more complicated to ensure that the requirements are met
    • It can be difficult to ensure the competence of temporary staff, mainly at work peaks.
  • 38.
    Lacko, Pavel
    et al.
    Swedish National Road and Transport Research Institute.
    Karlsson, Bo
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Hammarström, Ulf
    Swedish National Road and Transport Research Institute.
    Test av AUT-metoden, etapp 11992Report (Other academic)
  • 39.
    Linder, Astrid
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System. VTI.
    Silvano, Ary P.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Pettersson, Tommy
    Swedish National Road and Transport Research Institute, Infrastructure, Crash safety.
    Stabilitet på cykel med och utan ABS: en pilotstudie2018Report (Other academic)
    Abstract [sv]

    Projektet, som är en pilotstudie, syftade till att undersöka effekten av låsningsfria bromsar, ABS, på cykel. Fråga som projektet syftade till att besvara: Kan cyklars stabilitet under inbromsning förbättras av låsningsfri broms (ABS) på framhjulet? Frågan söks besvaras genom utformning och genomförande av bromsprov av cykel med och utan ABS. Cykelolyckor är bland de vanligaste orsakerna till trafikskador i Sverige, ofta med svåra skador och medicinsk invaliditet som följd. Närmare hälften av alla svårare trafikskador har uppstått på grund av cykelolyckor. ABS-bromsar har visats reducera risken för skada för motorcyklister genom ökad stabilitet och därmed minskad risk för omkullkörning i samband med bromsning. Däremot finns begränsad kunskap om effekten för cyklister. Två Crescentcyklar med sluten ram (herrcykel) testades: en konventionell, bakhjulsdriven modell med v-broms (fäljbroms) på framhjulet och en framhjulsdriven modell med el-assistans och navbroms i framhjulet. Med den konventionella cykeln utfördes två typer av tester, med och utan ABS-bromsar. ABS-bromsen var av modellen SABS V1. På el-cykeln med navbroms justerades bromsverkan så att framhjulet ej låstes, jämfört med full bromsverkan. En Hybrid II krockdocka, 50-percentil man, användes som cyklist i proven. Proven utfördes vid hastigheterna 17 och 20 km/h. Cyklarna bromsades maximalt på framhjulet. Friktionen var ungefär 0,7–0,8. Resultaten visade att ABS på cykelns framhjul gör att framhjulet inte låses vid full inbromsning och bakhjulet behåller kontakten med underlaget. Vid prov med v-broms eller navbroms med full broms-verkan blev bromssträckan cirka 2 meter, men framhjulet låstes vid full broms och bakhjulet lyfte från underlaget. Det innebar att cykeln då endast balanserade på framhjulet. Prov med ABS-broms på v-bromsen och justerad bromsverkan på navbromsen resulterade däremot i inbromsning utan låsning av framhjulet. Bromssträckan var i dessa prov cirka 4 meter. Resultaten var liknande för de båda cyklarna.

  • 40.
    Linder, Astrid
    et al.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Silvano, Ary P.
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Anti-lock Braking System on Bicycles: A pilot study on influence on stability2018In: Conference proceedings International Research Council on the Biomechanics of Injury, IRCOBI, International Research Council on the Biomechanics of Injury , 2018, p. 47-48Conference paper (Refereed)
  • 41. Lindqvist, Lars
    et al.
    Källberg, Ellen
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Renner, Linda
    Swedish National Road and Transport Research Institute.
    Utvärdering av 30-regel i Linköping: sammanställningar av utvärderingar till rapport2008Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Denna publikation är en sammanställning av de PM:n som ligger till för grund utvärderingen av 30- regeln i Linköping (2008:119). De PM som ingår är: - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: enkät till medtrafikanter 2007, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: enkät till medtrafikanter 2008, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: sammanställning av föremätningar i 30-försöket, Linköping och Örnsköldsvik 2007, Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: sammanställning av kontrollmätning i 30-försöket, Linköping och Örnsköldsvik 2007, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: sammanställning av eftermätning i 30-försöket, Linköping 2008, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: enkät till barn som åker skolskjuts, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Linköping: utvärdering av chaufförernas uppfattning och erfarenhet av försöket med lagstadgad 30 km/h i Linköping.

  • 42.
    Lindqvist, Lars
    et al.
    NU-gruppen .
    Källberg, Ellen
    NU-gruppen .
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Renner, Linda
    Swedish National Road and Transport Research Institute.
    Larsson, Thomas
    Vägverket .
    Trosell, Lotta
    Acumenta .
    Utvärdering av 30-regel i Örnsköldsvik: sammanställningar av utvärderingar till rapport Vägverket 2008:1172008Report (Other academic)
    Abstract [sv]

    Denna publikation är en sammanställning av de PM:n som ligger till för grund utvärderingen av 30-regeln i Örnsköldsvik (Vägverkets rapport 2008:117). De PM som ingår är: - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: enkät till medtrafikanter 2007, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: enkät till medtrafikanter 2008, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: sammanställning av föremätningar i 30-försöket, Linköping och Örnsköldsvik 2007, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: sammanställning av kontrollmätning i 30-försöket, Linköping och Örnsköldsvik 2007, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: sammanställning av eftermätning i 30-försöket, Örnsköldsvik 2008, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: enkät till barn som åker skolskjuts, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: barnkonsekvensanalys, - Utvärdering av försöket med 30 km/tim vid passerande av skolskjutsar i Örnsköldsvik: utvärdering av chaufförernas uppfattning och erfarenhet av försöket med lagstadgad 30 km/tim i Örnsköldsvik

  • 43.
    Patten, Christopher
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Wallén Warner, Henriette
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic Safety and Traffic System.
    Hjulburna oskyddade trafikanter på landsväg2017Report (Other academic)
    Abstract [en]

    The background to this collection of three sub-studies; 1) Two-minus-one bicycle lanes on rural roads, 2) How close is close? and 3) Pilot study on road friction testing for motorcycles, is to highlight any problems that two-wheeled unprotected road users have on Swedish roads. Studies 1 and 2 are about cyclists on country roads, while study 3 is about motorcyclists. Study 1 is a survey of a new road design, two-minus-one rural roads. Study 2 is an experimental study that highlights the issue of the width of a cycle path/hard-shoulder from the perspective of the cyclist. Study 3 is friction measurements carried out on a measurement method that is more adapted to the situation of motorcyclists. The three sub-studies resulted in the following recommendations: i) stretches of rural roads that are intended to be two-minus-one rural roads should be chosen carefully and in places where sight-lines are obscured (by hedgerows, topography, etc.), alternative solutions should be considered. ii) The speed limitation on the two-minus-one rural roads should not exceed 50 km/h. In order to reduce speeding, signage in combination with surveillance and/or infrastructure measures should be considered to reduce speed violations. iii) The introduction of two-minus-one rural roads should be done in dialogue with local populations and preceded by information efforts so that everyone knows what rules apply. iv) A single carriageway cycle path/hard-shoulder on a two-minus-one rural road with mixed traffic should be at least 120 cm laterally from the middle of the bicycle path to the motor vehicles’ carriageway. v) Friction measurements should be linked to the driver's experience of grip. vi) Develops a measurement method/protocol for friction testing where the measurement section is ≥ 1 m in different levels of wetness on the roadway, which can also be used to evaluate blackspots on road sections that are linked to “temporary” road repairs.

  • 44.
    Robertson, Kerstin
    et al.
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Antonson, Hans
    Swedish National Road and Transport Research Institute, Society, environment and transport, Mobility, actors and planning processes.
    Arvidsson, Björn
    Rese - och Turistnäringen i Sverige.
    Evanth, Katarina
    Trivector Traffic AB.
    Genell, Anders
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Hvitlock, Nina
    Trivector Traffic AB.
    Jägerbrand, Annika
    Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
    Lundin, Jan
    Rese - och Turistnäringen i Sverige.
    Niska, Anna
    Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Wennberg, Hanna
    Trivector Traffic AB.
    Hållbara turistresor inom Sverige: hinder och möjligheter för resor med tåg och buss2013Report (Other academic)
    Abstract [en]

    The objective of this study was to analyze the conditions for the transfer of passengers from private car to public transport, primarily train and bus to, from and within a number of tourist destinations in Sweden. The goal was to develop a basis for planning for sustainable tourism. The study included an analysis of opportunities to travel by public transport, travel time and travel costs, interviews with tourists and other stakeholders, an analysis of measures, and it results in some general guidelines for planning for sustainable tourism. The possibilities to travel by public transport, travel time and travel costs to, from and within three summer destinations (Astrid Lindgren's World, the Kingdom of Crystal, Öland) and two winter destinations (Åre, Funäsdalen) were analyzed for three different categories of tourists (families with children, couples, four adults) . This showed that overall is possible to travel to the destinations studied without a private car. The conditions travelling with public transport, however, differ greatly between the different destinations. Travel time by train or bus in comparison with travelling by car was not too different for most combinations of points of departure and destinations. In some cases, however, when the point of departure was a smaller place, not located along a major railroad, the journey by train and/or bus could be both long and require many transfers. In those cases public transport is hardly an alternative to traveling by private car. The total travel cost for travelling by train or bus was in almost all cases fairly level with travelling with private car, it but could also be significantly higher. The cost for travelling by public transport was also relatively higher in comparison with private car for parties with two or more people, and in those cases the cost was sometimes seen as an obstacle. The travel opportunities within the various destinations appears to be the biggest obstacle for convincing more people to choose to travel by public transport to and from tourist destinations, particularly in summer when travel requirement in general are higher. The options for travelling within the destinations vary considerably, but are generally better in the winter destinations. In Åre the ski bus, for example, is a good option for travelling between the various ski resorts. The tourist’s views of travelling by public transport is also much more positive for journeys to winter destinations than to summer destinations, which can largely be explained by the smaller travel requirements within these destinations. In the case of families the view that it is difficult to attract families with young children to travel by public transport emerged. There may be several reasons for this, the handling of luggage being one important issue. Many also suggested that there is a need to make it easier to find information about public transport options and alternatives as well as to reserve and book tickets. Package reservations were highlighted as an interesting alternative. Many saw information searching regarding the trip components such as accommodation, flights, transfer, lift passes etc. as problematic and would appreciate a service where everything was in one place. In addition it is not easy to get an overview of pricing for both travel and accommodation. Proposals were also put forward that one way to attract to travel by public transport is to highlight the added value that it entails.

  • 45. Siren, Anu
    et al.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    Hakamies-Blomqvist, Liisa
    Swedish National Road and Transport Research Institute.
    Förnuft och känsla: en narrativ studie om äldre kvinnors bilkörning2004Report (Other academic)
    Abstract [sv]

    Studien utgick ifrån att det finns ett kvinnospecifikt sätt att uppleva och tillmäta betydelse av bilen. Denna insikt är väsentlig för en förståelse av kvinnornas beslutsfattande i frågor kring bilkörning, såsom att sluta köra bil. De äldre kvinnornas marginalisering som bilförare, som flera studier demonstrerat, byggs upp genom olika former av social och kulturell praxis under hela levnadsloppet. Männen har utgjort normen och styrt kvinnornas användande av bilen, men bilen och körkortet har ändå gett kvinnorna en ökad frihet och livskvalitet. Bilens och bilkörningens personliga betydelse i kvinnornas berättelser avspeglade både förnuft och känsla, med andra ord både bilens praktiska och dess upplevelsemässiga betydelse. Detta är några av de resultat som framkommit vid en kvalitativ studie som omfattat tio äldre kvinnors berättelser om sina liv som bilförare. Syftet med studien var att belysa kvinnornas bilkörning ur perspektivet av deras levnadslopp. Ett centralt begrepp i referens- och tolkningsramen var äldre kvinnors marginalisering som trafikanter. Målet var att få en ökad förståelse för de sociokulturella dragen i de äldre kvinnornas bilkörning och den betydelse bilkörningen har och har haft för dem.

  • 46.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
    Ska vi rangordna skyddsutrustningar för barn i bil på ett specifikt svenskt sätt?2010Report (Other academic)
    Abstract [sv]

    Ett projekt har genomförts i syfte att stärka den svenska modellen med bakåtvänt åkande till 4 års ålder. En del av arbetet bestod av en genomgång avseende olika system för rankning av skyddsutrustningar för barn i bil. Den pekade på att bakåtvända bilbarnstolar för barn i 1-4 års ålder missgynnas i testerna på grund av att nackkrafterna inte tillmäts tillräckligt stor betydelse. Därför har förslag på specifik svensk rankning diskuterats och bedömts i förhållande till några alternativa åtgärder. En eventuell svensk rankning föreslås omfatta bil, passagerare och skydd. Kostnaden och omfattningen av sådan testning bedöms dock vara hög. Alternativt föreslås därför en satsning på den marknadsöversikt som tillhandahålls av NTF, med redovisning av Plusmärkning. En lista över ytterligare åtgärdsförslag lämnas också. Ett fortsatt internationellt arbete avseende såväl godkännanden som konsumentupplysning rekommenderas, för att ytterligare förankra den svenska modellen i Europa - bakåtvänt är rättvänt till 4 års ålder.

  • 47.
    Sörensen, Gunilla
    Swedish National Road and Transport Research Institute.
    System för bestämning av fordonskoder1996Report (Other academic)
  • 48.
    Sörensen, Gunilla
    et al.
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Wretling, Peter
    Swedish National Road and Transport Research Institute.
    Trafiksäkerhet vid skolskjutsning: litteraturstudie och fältobservationer2000Report (Other academic)
    Abstract [en]

    This study focused on traffic safety aspects in connection with school transport. A literature study was carried out. Observations were made while travelling on several trips and attending an education day. Accident data were also of interest. Previously, contracts had been compared from the aspect of traffic safety. This called for an extension resulting in a larger study entitled “Traffic safety aspects in the purchase of transportation at public expense, with particular reference to school transport”. The aim was to identify and value the traffic safety aspects concerned in order to minimise the total costs to the community. The first part involves literature from the 90's, excluding vehicle-related aspects, and has been documented in this report. The most comprehensive investigations were found in the American literature. The importance of driver education was pointed out and accident crash studies had resulted in high standards for school buses. In Europe, the EC directives also emphasise the importance of the driver. In Great Britain, the case for changing the present system was examined in terms of discretionary policies, expenditure and extent and means of provision. The congestion resulting from the increasing number of pupils being driven to school by their parents was also discussed. In Sweden, responsibility is put on the school boards and the municipalities. Co-ordination between different types of community-financed journeys is advocated, sometimes without any regard for the consequences in terms of traffic safety. In the USA, accidents have been reduced to an extremely low level. In Sweden, the number of accidents related to school transport is still unknown.

  • 49.
    Sörensen, Gunilla
    et al.
    Swedish National Road and Transport Research Institute.
    Anund, Anna
    Swedish National Road and Transport Research Institute.
    Wretling, Peter
    Swedish National Road and Transport Research Institute.
    Törnström, EvaMarie
    Falkmer, Torbjörn
    Swedish National Road and Transport Research Institute.
    Matstoms, Ylva
    Swedish National Road and Transport Research Institute.
    Trafiksäkerhet vid skolskjutsning: slutrapport2002Report (Other academic)
    Abstract [en]

    The Swedish school transport system has been investigated from a traffic safety point of view. In order to achieve a better ground for decisions and for measures to be taken, several studies have been carried out, such as literature studies, observations, group discussions and questionnaire based studies. The aim is to find ways to improve traffic safety without increasing the total costs for the society.

    Each local authority has the possibility to set up demands when purchasing school transport. The studies have shown that the traffic safety demands in the contracts are few and the control of the compliance of these demands is insufficient, if at all existing. For example one out of ten authorities does not control the contractors at all and only three out of ten demand that the vehicles are equipped with safety belts. However, the authorities receive few reports about incongruities, incidents and accidents. The explanation is probably not that problems do not exist, but that the report system is insufficient.

    The drivers are in several ways the key persons to achieve increased safety. They are experts on the real-life conditions. If the drivers are given opportunities to take part in the planning of the school transport, attend special courses and take part in the training of the children, much will be gained. At present the children have different rules to follow, depending on who the current driver is. This can be a confusing situation for the child. Moreover, the drivers do not always use their safety belts, although this is mandatory. They also have to make sure that all the children are using existing safety belts. How this should be done is not obvious.

  • 50.
    Sörensen, Gunilla
    et al.
    Swedish National Road and Transport Research Institute.
    Carlsson, Arne
    Swedish National Road and Transport Research Institute.
    Skattning av effekt/massaförhållande för tunga fordon1997Report (Other academic)
12 1 - 50 of 60
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • 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