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Thorslund, B., Nygårdhs, S., Malicka, A. N., Black, A. A., Hickson, L. & Wood, J. M. (2019). Exploring older adults hearing and vision and driving: The Swedish study. Transportation Research Part F: Traffic Psychology and Behaviour, 64, 274-284
Open this publication in new window or tab >>Exploring older adults hearing and vision and driving: The Swedish study
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2019 (English)In: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, E-ISSN 1873-5517, Vol. 64, p. 274-284Article in journal (Refereed) Published
Abstract [en]

Aim: The aims of this study were to evaluate the self-reported driving abilities and use of visual and hearing aids for driving, among older adults with varying degrees of hearing impairment (HI), vision impairment (VI) and dual sensory impairment (DSI). Visual processing related to driving performance was also assessed to provide a laboratory-based index of driving ability and safety. The research examined the associations between self-reported and clinically measured vision and hearing, and how they related to the level of comfort in various driving situations and the use of hearing and vision aids (spectacles) when driving.

Method: Participants included 109 older adults (58 women, 51 men) aged over 60 years (M age = 69.5 years (SD = 5.25), age range: 60–87) who held a valid driver's license. Following attendance at the testing session that involved clinical measures of vision and hearing and an assessment of visual processing abilities, the participants were categorized into four groups according to their hearing and vision abilities: no visual or hearing impairment (NI), corrected visual impairment (CVI), hearing impairment (HI), and corrected visual impairment combined with hearing impairment (CVHI). All participants filled in a questionnaire covering subjective measures of vision, hearing, driving habits, and use of vision and hearing aids.

Results and Conclusion: There was a strong association between most of the subjective and objective measures of both hearing and vision, which indicates that participants in this study were aware of their abilities to some extent. Better hearing and vision measures were associated with higher level of comfort in several traffic situations. The results also show that spectacles are used more than hearing aids when driving (95% versus 57% of the time respectively). In addition, both the measured and the experienced benefits of hearing aids were significantly associated with the amount of hearing aid use when driving. The findings of this study provide the basis for larger scale studies to explore the impact of hearing and visual impairment on driving and the use of vision and hearing aids and should also include participants who have visual impairment even with their optimal optical correction to fully explore these effects.

Place, publisher, year, edition, pages
Elsevier Ltd, 2019
National Category
Otorhinolaryngology
Identifiers
urn:nbn:se:vti:diva-14051 (URN)10.1016/j.trf.2019.04.011 (DOI)2-s2.0-85066236492 (Scopus ID)
Available from: 2019-07-15 Created: 2019-07-15 Last updated: 2019-07-15Bibliographically approved
Nygårdhs, S. (2019). Upptäcktsavstånd till oskyddade trafikanter i mörkertrafik: resultat från en fältstudie i stadsmiljö. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Upptäcktsavstånd till oskyddade trafikanter i mörkertrafik: resultat från en fältstudie i stadsmiljö
2019 (Swedish)Report (Other academic)
Alternative title[en]
Detection distance of vulnerable road users in night-time traffic : results from a field study in an urban environment
Abstract [sv]

Studier om synbarhet i trafiken har tidigare genomförts i syfte att undersöka på hur långt avstånd det går att se till exempel en oskyddad trafikant under olika förhållanden. Under verklig körning har föraren dock en köruppgift som både inkluderar att manövrera sitt fordon och att bedöma trafiksituationen och agera därefter. I detta ingår att upptäcka relevanta objekt i tid för att hinna reagera på dem, medan synavståndet är det längsta upptäcktsavstånd som är möjligt.

Syftet med denna studie var att undersöka upptäcktsavstånd under verklig mörkerkörning, i förhållande till vägbelysning, till oskyddade trafikanters rörelsemönster och till stoppsträckan. Dessutom undersöktes instruktionens påverkan på blickbeteendet hos förarna.

Studien genomfördes som en fältstudie i stadsmiljö med oskyddade trafikanter i mörkertrafik. Förarna instruerades om att säga till direkt när de såg en oskyddad trafikant, varvid upptäcktsavståndet fram till den oskyddade trafikanten registrerades. Belysningsstyrkan mot vägytan och mot en tänkt oskyddad trafikant på trottoaren mättes upp i mörker vid separata tillfällen, medan påverkan av instruktionen på blickbeteendet undersöktes med hjälp av ögonrörelseglasögon.

Resultaten visade att det finns faktorer i stadsmiljö som påverkar upptäcktsavståndet i större utsträckning än vägbelysningen. Personer som rör sig tvärs vägen upptäcks på längre avstånd jämfört med dem som rör sig längs vägen eller är stillastående. Även om det inte är vanligt förekommer det fall där stoppsträckan kan vara längre än upptäcktsavståndet. Blickbeteendet påverkades inte av instruktionen i någon större utsträckning.

Abstract [en]

Studies concerning visibility in traffic have previously been carried out with the aim to investigate the longest distance possible to perceive for instance a vulnerable road user under varying conditions. In real driving however, the driver has a driving task that includes both manoeuvring the vehicle and evaluating to evaluate the present traffic situation and act accordingly. Detecting relevant objects in time to react to them is a part of the driving task, while the visibility distance is the longest possible detection distance.

The aim of the prevailing study was to explore detection distances under real night-time driving conditions, in relation to road lighting, to the movement pattern of vulnerable road users, and to the stopping distance. In addition, the influence of the instruction on drivers’ glance behaviour was examined.

The study was conducted as an urban field study with vulnerable road users in night-time traffic. The participating drivers were instructed to tell directly when they detected a vulnerable road user, whereby the detection distance to the vulnerable road user was registered. The road surface illuminance and the illuminance at a conceived vulnerable road user on the pavement were measured at night-time on separate occasions, while the influence of the instruction was investigated by use of eye tracking equipment.

The results showed that there are other factors in the urban environment that influence the detection distance more than road lighting. Persons moving across the road are detected at longer distances compared to those moving along the road or standing still. Though it is not common, there are occasions when the stopping distance can be longer than the detection distance. Glance behaviour was not affected by the instruction to any large extent.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2019. p. 35
Series
VTI rapport, ISSN 0347-6030 ; 1015
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:vti:diva-13974 (URN)
Available from: 2019-06-13 Created: 2019-06-13 Last updated: 2019-06-13Bibliographically approved
Nygårdhs, S., Ahlström, C., Ihlström, J. & Kircher, K. (2018). Bicyclists' adaptation strategies when interacting with text messages in urban environments. Cognition, Technology & Work, 20(3), 377-388
Open this publication in new window or tab >>Bicyclists' adaptation strategies when interacting with text messages in urban environments
2018 (English)In: Cognition, Technology & Work, ISSN 1435-5558, E-ISSN 1435-5566, Vol. 20, no 3, p. 377-388Article in journal (Refereed) Published
Abstract [en]

Cyclists' use of mobile phones in traffic has typically been studied in controlled experiments. How cyclists adapt their behaviour when they are not limited to a certain set of behaviours has not been investigated to any large extent. The aims of this study are to explore how cyclists adapt when texting and listening to music in a complex urban environment, and if they compensate sufficiently to maintain safe traffic behaviour. Forty-one cyclists participated in a semi-controlled study, using their own bike and smartphone in real traffic. They were equipped with eye tracking glasses and travelled two laps completing a total of 6 km divided into six segments. For one of the laps, the cyclists were requested to listen to music. On three occasions, they received a text message to their phone, which they were supposed to handle as they normally would when cycling. Static minimum required attention measures were used to examine the influence on attention. The results show that listening to music while cycling did not affect workload, speed, SMS interaction or attention. Seven different adaptation behaviours were identified when the cyclists dealt with received text messages. One-fourth of the text messages were replied to while cycling. In general, the cyclists manage to integrate SMS interactions with their cycling behaviour. Nevertheless, there were two occasions when basic attention criteria were violated while texting, which motivate further studies.

Place, publisher, year, edition, pages
SPRINGER LONDON LTD, 2018
Keywords
Cyclist, Behaviour, Mobile phone, Use, Cycling, Attention, Mental load
National Category
Human Aspects of ICT
Research subject
80 Road: Traffic safety and accidents, 841 Road: Road user behaviour
Identifiers
urn:nbn:se:vti:diva-13185 (URN)10.1007/s10111-018-0478-y (DOI)000439906300004 ()2-s2.0-85045467252 (Scopus ID)
Available from: 2018-09-12 Created: 2018-09-12 Last updated: 2018-11-19Bibliographically approved
Kircher, K., Ihlström, J., Nygårdhs, S. & Ahlström, C. (2018). Cyclist efficiency and its dependence on infrastructure and usual speed. Transportation Research Part F: Traffic Psychology and Behaviour, 54, 148-158
Open this publication in new window or tab >>Cyclist efficiency and its dependence on infrastructure and usual speed
2018 (English)In: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, E-ISSN 1873-5517, Vol. 54, p. 148-158Article in journal (Refereed) Published
Abstract [en]

Bicyclists are a heterogeneous group, with varying abilities, traffic education and experience. While efficiency was identified as an important factor on utility bicycle trips, it might be traded for experienced safety, for example by choosing different pathways in a given situation, or by relinquishing one's right of way. In a semi-controlled study with 41 participants, a grouping was made according to self-reported riding speed in relation to other cyclists. The participants cycled twice along a 3 km inner-city route, passing four intersections with different priority rules. The cyclists were free to choose how to negotiate the intersections. Speed and the traffic surroundings were recorded via gps and cameras on the bike of the participant and of a following experimenter. For each cyclist, the ‘base’ speed on undisturbed segments was determined as reference. Based on this, the efficiency in different types of intersections was computed per cyclist group. It turned out that infrastructural aspects, cyclist group and the presence and behaviour of interacting traffic influenced cyclist efficiency. Faster cyclists were delayed more when the infrastructure required a stop regardless of the traffic situation, like at a red traffic light or a stop sign. The members of the so-called ‘comfort cyclists’ group were delayed the most in a roundabout with mixed traffic, where many chose to get off their bike and walk. In a society working for equality of access to the transport system, it is recommended to develop solutions that consider and accommodate the behaviours of different cyclist groups when planning bicycling infrastructure.

Place, publisher, year, edition, pages
Elsevier Ltd, 2018
Keywords
Cyclist, Behaviour, Junction, Traffic mixture, Design (overall design), Efficiencey, Journey
National Category
Infrastructure Engineering
Research subject
10 Road: Transport, society, policy and planning, 113 Road: Cycling, walking and moped transport
Identifiers
urn:nbn:se:vti:diva-12861 (URN)10.1016/j.trf.2018.02.002 (DOI)2-s2.0-85042191714 (Scopus ID)
Available from: 2018-04-05 Created: 2018-04-05 Last updated: 2018-05-21Bibliographically approved
Wallén Warner, H., Niska, A., Forward, S., Björklund, G., Eriksson, J., Kircher, K., . . . Nygårdhs, S. (2018). En modell för säker cykling. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>En modell för säker cykling
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2018 (Swedish)Report (Other academic)
Alternative title[en]
A model for safe cycling
Abstract [sv]

Avsikten med det tvärvetenskapliga forskningsprogrammet En stark forskningsmiljö inom området hjulburna oskyddade trafikanter är att öka kunskapen om hjulburna oskyddade trafikanter och deras speciella förutsättningar i trafikmiljön för att på sikt kunna bidra till att nå det nationella hänsynsmålet med fokus på säkerhet. Syftet med denna modellrapport är att sammanfatta resultat och föreslagna åtgärder från de övriga åtta projekten inom ramen för forskningsprogrammet, men även från tidigare forskning och andra programövergripande aktiviteter, i en modell för säker cykling. Med modell avser vi i detta fall en lista över åtgärdsförslag som i enlighet med Haddons matris, utökad med förutsättningar, är riktade mot cyklisten, cykeln och trafikmiljön. För varje åtgärdsförslag finns även angivet var i händelseförloppet från förutsättningar till krasch som åtgärden bör sättas in samt vilka aktörer vi anser är lämpade att initiera och implementera åtgärdsförslagen. För att åstadkomma säker cykling visar resultaten att man måste titta på transportsystemet i sin helhet vilket i sin tur kräver samverkan mellan olika aktörer. Slutligen behövs fortsatt forskning för att kunna optimera utformningen av de olika åtgärderna och utvärdering för att säkerställa att de haft önskad effekt.

Abstract [en]

The main aim of the multi-disciplinary scientific research programme A strong research environment in the field of non-motorised vulnerable road users is to increase our knowledge of unprotected twowheeled or non-motorised road users and their special requirements in the road traffic environment. The aim being to, in the long-term, to contribute to the Swedish national road safety goals. The objective of the Model for Safe Cycling report is to summarise the results and suggested actions from the eight projects that were conducted within the framework of the research programme; a literature study; and other programme related activities, in a conceptual model based on Haddon’s matrix. With a model, in this case, we mean that a list of suggested implementation actions, structured according to Haddon’s matrix and embellished with prerequisites directed towards the cyclist, the bicycle and the road environment. Each of the suggested actions or implementation suggestions, are organised along the chain of events from the prerequisite phase to the crash phase. Stakeholders are identified for each of the suggested actions for implementation. In summary, the results suggest one must look at the (road) transport system as a whole to provide a system for safe cycling. To be able to acquire a holistic approach, cooperation between stakeholders is necessary. Finally, more research is required to find optimal solutions and designs tailored to the actions that must also be evaluated to assure that the desired effects are reached.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018. p. 101
Series
VTI rapport, ISSN 0347-6030 ; 979
Keywords
Cycling, Cyclist, Bicycle, Safety, Accident prevention, Method, Model (not math)
National Category
Transport Systems and Logistics
Research subject
80 Road: Traffic safety and accidents; 80 Road: Traffic safety and accidents, 82 Road: Geometric design and traffic safety; 80 Road: Traffic safety and accidents, 84 Road: Road users
Identifiers
urn:nbn:se:vti:diva-13236 (URN)
Available from: 2018-09-03 Created: 2018-09-03 Last updated: 2019-06-05Bibliographically approved
Thorslund, B., Nygårdhs, S., Malicka, A., Black, A., Hickson, L. & Wood, J. (2018). Exploring older adults hearing and vision and driving: the Swedish study. In: : . Paper presented at 18th International Conference Road Safety on Five Continents (RS5C 2018), Jeju Island, South Korea, May 16-18, 2018. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Exploring older adults hearing and vision and driving: the Swedish study
Show others...
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The aims of this study were to evaluate self-reported driving abilities and self-reported use of visual and hearing aids for driving, among older adults with varying degrees of Hearing Impairment (HI), Vision Impairment (VIA measure of visual processing related to driving performance was also assessed. The following research questions were examined: How are self-reported and clinically measured declines in sensory and cognitive skills associated with: Each other, Level of comfort in various driving situations, and Use of hearing and vision aids when driving.

Participants included 109 older adults (58 women, 51 men) aged over 60 years (Mage = 69.5 years (SD=5.25), age range: 60—87) holding a valid driver’s license. Tests of vision, hearing and visual processing were performed to collect objective data. All participants filled in a questionnaire covering subjective measures of vision, hearing, driving habits, and use of vision and hearing aids. Correlations were made to examine the relations between objective and subjective measures

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018
Research subject
X RSXC
Identifiers
urn:nbn:se:vti:diva-12937 (URN)
Conference
18th International Conference Road Safety on Five Continents (RS5C 2018), Jeju Island, South Korea, May 16-18, 2018
Available from: 2018-05-16 Created: 2018-05-07 Last updated: 2018-05-25Bibliographically approved
Fors, C., Johansen, T. C., Lundkvist, S.-O. & Nygårdhs, S. (2018). Nordic certification system for road marking materials: version 5:2018. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Nordic certification system for road marking materials: version 5:2018
2018 (English)Report (Other academic)
Alternative title[sv]
Nordiskt certifieringssystem för vägmarkeringsmaterial : version 5:2018
Abstract [en]

A Nordic certification system for road marking materials was introduced in 2015. The system is based on documented performance measurements of material samples applied on test fields on public roads. From 2016, the certification system includes both flat (type I) and structured/profiled (type II) markings. Since 2017 the certification system also includes antiskid materials (a material with enhanced friction). From 2018 the certification system will also include temporary markings (Denmark only), and inlaid markings (Norway only).

Material tests are carried out at two test sites: one in Norway and one in Denmark. The tests fields are situated on public roads and the tested materials are thus exposed to real traffic conditions and to weather conditions representative for the Nordic countries. The materials are followed up by performance measurements during one or two years. The certification includes requirements on coefficient of retroreflected luminance RL under dry and wet conditions, luminance coefficient under diffuse illumination Qd, friction and colour coordinates. The number of wheel passages is measured at the test sites annually. The certification system includes material identification, which allows for future material sampling and analysis.

The certification system is based on the European standards EN 1824 Road marking materials Road trials, EN 1436 Road marking materials Road marking performance for road users, and EN 12802 Road marking materials Laboratory methods for identification.

The report describes the certification system and how it is applied in the Nordic countries. Procedures and methods that are used for application of materials and performance measurements are specified.

Abstract [sv]

Ett nordiskt certifieringssystem för vägmarkeringsmaterial introducerades under 2015. Systemet baseras på dokumenterade materialtester på provfält, där materialen certifieras utifrån hur många hjulpassager de klarar. Från och med 2016 omfattar certifieringssystemet både plana (typ I) och profilerade/våtsynbara (typ II) markeringar. År 2017 utökades certifieringssystem ytterligare till att även inkludera friktionsmaterial (material med förbättrad friktion). Från 2018 kommer certifieringssystemet även att inkludera temporära markeringar (endast Danmark), och nedfrästa markeringar (endast Norge).

Materialtester görs på två provfält: ett i Norge och ett i Danmark. Provfälten är placerade på allmän väg och materialen som testas är således exponerade för reell trafik samt för väderförhållanden representativa för de nordiska länderna. Materialen följs upp med funktionsmätningar under ett eller två år. Certifieringen omfattar krav på retroreflexion RL, luminanskoefficient Qd, friktion och färgkoordinater. Antalet hjulpassager materialen utsätts för mäts årligen. Certifieringssystemet inkluderar även materialidentifiering, vilket möjliggör senare stickprovskontroller vid entreprenader.

Certifieringssystemet baseras på europastandarderna EN 1824 Road marking materials Road trials, EN 1436 Road marking materials Road marking performance for road users, samt EN 12802 Road marking materials Laboratory methods for identification.

Rapporten beskriver hur certifieringssystemet fungerar och hur det tillämpas i de nordiska länderna. Vidare beskrivs de procedurer och metoder som används vid utläggning av material, samt vid mätning av materialens funktionsparametrar.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018. p. 47
Series
VTI notat ; 12A-2018
Keywords
Carriageway marking, Material (constr), Paint, Performance, Field (test), Measurement, Retroreflection, Luminance, Friction, Official approval, Denmark, Norway, Sweden, Specification (standard)
National Category
Infrastructure Engineering
Research subject
50 Road: Materials, 55 Road: Miscellaneous materials
Identifiers
urn:nbn:se:vti:diva-13101 (URN)
Note

Please note that the content of this document have been updated with a publication released 2019. See http://urn.kb.se/resolve?urn=urn:nbn:se:vti:diva-14091

Available from: 2018-06-01 Created: 2018-06-01 Last updated: 2019-08-21Bibliographically approved
Kircher, K., Nygårdhs, S., Ihlström, J. & Ahlström, C. (2017). Cyklisters interaktion med extrautrustning, infrastrukturen och andra trafikanter: En semi-kontrollerad fältstudie. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Cyklisters interaktion med extrautrustning, infrastrukturen och andra trafikanter: En semi-kontrollerad fältstudie
2017 (Swedish)Report (Other academic)
Alternative title[en]
Cyclists’ interaction with mobile devices, the infrastructure and other road users
Abstract [sv]

Hur cyklister interagerar med infrastrukturen, och hur de integrerar utförandet av extrauppgifter, hänger ihop med den omgivande trafiksituationen och cyklistens egenskaper. För att studera sambanden närmare utfördes en semi-kontrollerad fältstudie med 41 cyklister, som tillhörde olika cyklistgrupper med avseende på deras vanliga hastighet under transportresor. Hastighet, blickriktning och taktiskt beteende som spårval och interaktion med inkommande textmeddelanden loggades, medan cyklisterna tillryggalade en sträcka i innerstaden på 6 kilometer. Intervjuer och tänka-högt protokoll samt filmning från olika perspektiv användes också.

Det var vanligt för cyklister att ignorera inkommande textmeddelanden, en tredjedel besvarades direkt under cykling. De textmeddelanden som hanterades under cykling ledde inte till ökade brister i uppmärksamhet eftersom cyklisterna anpassade hanterandet efter omgivningen. Interaktionen med telefonen skilde sig inte nämnvärt mellan cyklistgrupperna. Däremot påverkade infrastrukturen de olika cyklisttyperna på olika sätt, där snabbare cyklister upplevde en större fördröjning, där infrastrukturen tvingar fram stopp, medan komfortcyklister fördröjdes mest i en otydligt utformad cirkulationsplats. Det kom även fram att trottoarcykling är vanligt förekommande och främst ett uttryck av upplevd osäkerhet i blandtrafik med bilar. Det är alltså viktigt att ta hänsyn till olika behov bland cyklisterna när infrastruktur utformas, så att inga irritationer, osäkerheter eller konflikter uppstår.

Abstract [en]

How cyclists interact with the infrastructure, and how they integrate the handling of additional tasks, is dependent on the surrounding traffic situation and the cyclists’ characteristics. To study these relationships, a semi-controlled field study was conducted with 41 cyclists, who belonged to different cyclist groups with respect to their usual travel speed during transport trips. Speed, gaze direction and tactical behaviour like choice of path and the interaction with incoming text messages was logged, while the cyclists travelled along a six kilometre long route in the inner city of Linköping. Interviews and think aloud protocols, as well as video recordings from different perspectives were employed as well.

It was common that the cyclists ignored incoming text messages, a third was answered directly while cycling. The texting while cycling did not lead to attentional decrements, because the cyclists adapted their interaction with the telephone to the prevailing traffic situation. The interaction with the phone did not differ substantially between cyclist groups. However, the design of the infrastructure affected the cyclist groups differently, where faster cyclists were delayed more in cases where the infrastructure necessitated stops regardless of the traffic situation, while comfort cyclists were the group delayed most in a roundabout that was difficult to interpret. Cycling on the pavement was common, and it mainly reflects the insecurity experienced in mixed traffic with cars. It is important to consider the different needs of different cyclist types when planning the road infrastructure, to avoid irritation, insecurity and conflicts.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2017. p. 62
Series
VTI rapport, ISSN 0347-6030 ; 940
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:vti:diva-11893 (URN)
Projects
Säker användning av extrautrustning: Trafikanters uppmärksamhet och behovSamspel i trafiken: Formella och informella regler bland cyklister
Available from: 2017-06-28 Created: 2017-06-28 Last updated: 2017-06-28Bibliographically approved
Nygårdhs, S., Fors, C., Carlson, A. & Ihlström, J. (2017). Kriterier för vägbelysning på statlig väg i och i anslutning till mindre tätorter på landsbygd: Resultat från litteraturstudie, intervjuer och projektmöte. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Kriterier för vägbelysning på statlig väg i och i anslutning till mindre tätorter på landsbygd: Resultat från litteraturstudie, intervjuer och projektmöte
2017 (Swedish)Report (Other academic)
Alternative title[en]
Cristeria for road lighting on public roads in and around lightly populated rural areas : Results from literature review, interviews and project meeting
Abstract [sv]

Enligt nuvarande riktlinjer för väg- och gatubelysning ska vägar och gator inom tätort förses med stationär belysning, medan vägar utanför tätort normalt sett inte behöver ha belysning. Regelverket Vägar och gators utformning (VGU) är tvingande för det statliga vägnätet medan det är rådgivande för kommunala vägar och gator. Behovet av belysning på statlig väg utanför tätort har varit en källa till diskussion mellan Trafikverket och kommunerna.

Syftet med denna studie är att ta fram ett förslag på nya riktlinjer för när vägbelysning ska användas på statlig väg i och i anslutning till mindre tätorter på landsbygd. Detta har huvudsakligen gjorts genom litteratursammanställning av riktlinjer och vetenskapliga studier om trafikanters behov och vägbelysningens effekter samt genom intervjuer med belysningsansvariga i kommuner. En lista över tänkbara kriterier togs fram och diskuterades på möte med Sveriges Kommuner och Landstings (SKL:s) och Trafikverkets gemensamma projektgrupp för projektet ”Kriterier för belysning på statlig väg”. Deltagarna vid detta möte ansåg att nedanstående kriterier är intressanta att gå vidare med i en tillämpning.

En statlig väg i eller i anslutning till mindre tätort på landsbygd ska vara försedd med vägbelysning om:

  1. vägen går genom en tätort (enligt Statistiska Centralbyråns gällande definition)
  2. det finns en kommunal detaljplan eller byggnadsplan med en statlig genomfartsväg där det förekommer blandtrafik
  3. det förekommer inrättningar som genererar oskyddade trafikanter i närheten av vägen, till exempel skolor, kyrkor, samlingslokaler, idrottshallar, vårdcentraler, muséer, tågstationer, färjelägen eller liknande
  4. det förekommer gång- och cykelpassager eller hastighetsdämpande åtgärder längs vägen
  5. det förekommer pendlingshållplatser, inklusive tåg och båt 6. gällande ÅDT-krav i VGU är uppfyllda.
Abstract [en]

According to the prevailing road lighting guidelines, roads and streets in urban areas should be equipped with road lighting, while roads outside of urban areas normally do not need to be equipped with road lighting. Vägar och gators utformning (VGU) contains guidelines that are mandatory for public roads but advisory for municipality roads and streets. The need of road lighting on public roads outside of urban areas has been discussed between the road authorities, i.e. the Swedish Transport Administration and the municipalities.

The aim of this study is to produce a proposal of new criteria for use of road lighting on public roads in and in connection to smaller populated areas in the countryside. This has mainly been done by a literature review of guidelines and research studies about road users’ needs and the effect of road lighting, as well as through interviews with persons responsible for road lighting in Swedish municipalities. A list containing possible criteria was compiled and discussed at a meeting with the project group for the project “Kriterier för belysning på statlig väg”, which is a group with common members from Swedish Association of Local Authorities and Regions (SALAR) and Swedish Transport Administration. The participants at the meeting found the following criteria interesting to apply.

A public road on the countryside should be equipped with road lighting if:

  1. the road runs through an urban area
  2. there is a local plan where there is mixed traffic on a national arterial road
  3. there are establishments and services that generate vulnerable road users close by the road, e.g. schools, churches, community centers, gymnasiums, health care centers, museums, train stations, ferry quays or similar
  4. there are passages for pedestrians and cyclists or speed reducing measures along the road
  5. there are commuter stops, including train and boat
  6. prevailing requirements on AADT in VGU are fulfilled.
Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2017. p. 43
Series
VTI notat ; 20-2017
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:vti:diva-11897 (URN)
Available from: 2017-07-03 Created: 2017-07-03 Last updated: 2017-07-03Bibliographically approved
Johansen, T. C., Fors, C., Nygårdhs, S. & Lundkvist, S.-O. (2016). Nordic certification of road marking materials in Denmark 2015–2016. Linköping: Statens väg- och transportforskningsinstitut
Open this publication in new window or tab >>Nordic certification of road marking materials in Denmark 2015–2016
2016 (English)Report (Other academic)
Alternative title[sv]
Nordisk certifiering av vägmarkeringsmaterial i Danmark 2015–2016
Abstract [en]

A Nordic certification system for road marking materials was introduced in 2015. In the first stage, the certification system applies to Denmark, Norway and Sweden. In these countries, a documented product approval will be required in order to use a road marking material on roads managed by the national road authorities. Product approval will be based on monitored and documented performance measurements of material samples applied on test fields on public roads.

Today, the certification system includes two test sites: one in Sweden and one in Denmark. However, the present report only deals with the certification in Denmark; the results from the Swedish test site will be presented in another report. The first round of material application took place in 2015, while follow-measurements were carried out around one year later, in 2016. At this point in time, the wheel passage classes P0, P1, P2 and P3 were reached at the Danish test site. In other words, the report presents which materials were certified for the mentioned P classes in 2016.

Abstract [sv]

Ett nordiskt system för certifiering av vägmarkeringsmaterial introducerades 2015. I ett första steg omfattar certifieringen Danmark, Norge och Sverige. I dessa länder kommer det i framtiden att krävas ett materialgodkännande för att få använda materialet på vägar som administreras av den statliga väghållaren. Materialgodkännandet baseras på fysikaliska mätningar på material som har applicerats i provfält på allmänna vägar.

I dagsläget omfattar certifieringen två provfält, ett i Danmark och ett i Sverige, men föreliggande rapport behandlar endast resultaten från Danmark – resultaten från det svenska provfältet redovisas i en annan rapport. Initiala mätningar gjordes 2015 och uppföljande mätningar efter cirka 1 år, 2016. Vid denna tidpunkt hade hjulpassageklasserna P0, P1, P2 och P3 uppnåtts. Således visar denna rapport vilka vägmarkeringsmaterial som godkändes för ovan nämnda P-klasser 2016.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2016. p. 33
Series
VTI rapport, ISSN 0347-6030 ; 911A
Keywords
Carriageway marking, Material (constr), Official approval, Retroreflection, Luminance, Friction, Measurement, Field (test), Denmark, Norway, Sweden, Specifications
National Category
Infrastructure Engineering
Research subject
50 Road: Materials, 55 Road: Miscellaneous materials
Identifiers
urn:nbn:se:vti:diva-11554 (URN)
Available from: 2017-02-03 Created: 2017-02-03 Last updated: 2019-05-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-5769-7193

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