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Intermittenta, heldragna och profilerade vägmarkeringars funktion över tid
Swedish National Road and Transport Research Institute, Traffic and road users, Trafikanttillstånd, TIL.ORCID iD: 0000-0002-2061-5817
Swedish National Road and Transport Research Institute, Infrastructure, Measurement technology and engineering workshop.
2016 (Swedish)Report (Other academic)Alternative title
Performance of broken, continuous and profiled road markings over time (English)
Abstract [sv]

Belagda vägar förses vanligtvis med längsgående vägmarkeringar, vilka kan utformas på olika sätt. Tvåfältsvägar ska i normalfallet ha en 10 eller 15 cm bred intermittent kantlinje, men heldragen kantlinje kan användas till exempel då man vill öka synbarheten. Om vägens årsdygnsmedeltrafik (ÅDT) ≥ 2000 ska kantlinjerna dessutom vara våtsynbara, vilket oftast åstadkoms genom att göra markeringen profilerad.

Syftet med projektet var att undersöka om det finns någon skillnad i hållbarhet mellan intermittent och heldragen kantlinje, samt att undersöka om det finns någon skillnad i funktion och hållbarhet hos olika typer av profilerade markeringar. I det första delprojektet applicerades intermittenta respektive heldragna kantlinjer på en tvåfältsväg, vilka sedan följdes upp med årliga mätningar av retroreflexion RL och luminanskoefficient Qd under fyra år. I det andra delprojektet lades ett provfält med sex olika typer av markeringar: plan, rillad, kamflex, longflex, trappflex och plan+trappflex.

Uppföljande mätningar av retroreflexion RL på både torra och våta markeringar samt luminanskoefficient Qd på torra markeringar gjordes efter ett och två år. Ingen skillnad i hållbarhet mellan intermittent och heldragen kantlinje kunde påvisas under de fyra år studien pågick. Gällande profilerade markeringar hade den rillade markeringen bäst funktion, med avseende på alla tre funktionsparametrar. Profilerade markeringar med ett trappmönster (trappflex, plan+trappflex) hade bättre funktion än markeringar med transversella linjer (longflex, kamflex).

Abstract [en]

Paved public roads usually have longitudinal road markings, which can be of different types. Two-lane roads should have a 10 or 15 cm wide broken edge line, but a continuous edge line can be used in order to enhance visibility. If the annual average daily traffic (AADT) is ≥ 2000 the edge lines must be wet-night visible, which is attained by creating a so-called profiled marking.

The aim of the project was to investigate whether there is a difference in durability between a broken and a continuous edge line, and to investigate whether there is a difference in performance and durability between different types of profiled markings. In the first part of the project, broken and continuous edge lines were applied on a public two-lane road. The performance of the markings was followed up by annual measurements of retroreflectivity RL and luminance coefficient Qd for four years. In the second part of the project, a test field with six different types of markings - one without and five with profile – were applied on a public road.

Follow-up measurements of retroreflectivity RL on dry as well as on wet markings, and luminance coefficient Qd in dry conditions were carried out after one and two years. No difference in durability between broken and continuous edge lines was shown. Regarding profiled markings, a road marking with an embossed pattern had the best performance with respect to all three performance parameters. Profiled markings with diagonal squares (“stairs”) had better performance than markings with transversal lines.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2016. , 43 p.
Series
VTI notat, 5-2016
Keyword [en]
Carriageway marking, Solid line, Broken line, Design (overall design), Durability, Retroreflection, Luminance, Wet road, Dryness, Measurement, Follow up study
National Category
Infrastructure Engineering
Research subject
70 Road: Maintenance
Identifiers
URN: urn:nbn:se:vti:diva-10105OAI: oai:DiVA.org:vti-10105DiVA: diva2:909585
Available from: 2016-03-07 Created: 2016-03-07 Last updated: 2017-03-30Bibliographically approved

Open Access in DiVA

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