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Field test on visibility at cycle crossings at night
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.ORCID iD: 0000-0001-5769-7193
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.ORCID iD: 0000-0002-2061-5817
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.
2010 (English)Report (Other academic)
Abstract [sv]

Denna rapport utgör dokumentation av en fältstudie som är en del i projektet "Trafikantstöd i mörkertrafik".De första delarna i projektet var en litteraturstudie om mörkertrafik i tätort samt en fokusgruppsstudiedär olika trafikantgruppers behov och upplevelser av mörkertrafik i tätort diskuterades.Syftet med fältstudien var att i mörker jämföra synavståndet till cykelöverfarter med synavståndet tillcyklister vid motsvarande cykelöverfarter. Detta studerades både vid torr och vid våt vägyta.Tolv försökspersoner deltog i studien; sex vid torra och sex vid våta vägyteförhållanden. De satt sompassagerare i en instrumenterad bil på natten och åkte längs en testrutt som omfattade totalt 19 cykelöverfarter.Försökspersonerna indikerade när de upptäckte cyklister (stationära attrapper) och cykelöverfarterlängs testrutten, varvid synavståndet registrerades och sparades.Huvudresultatet av studien var att cyklistattrappen alltid syntes på längre avstånd än cykelöverfarten.

Alternativ URL: http://fudinfo.trafikverket.se/fudinfoexternwebb/Publikationer/P ublikationer_001401_001500/Publikation_001409/field-test-on-visibility-at-cycle- crossings-at-night.pdf

Abstract [en]

This report describes a field study which is part of the project "Road user support in night-time traffic". The first steps in the project were a literature review on night-time traffic in urban areas and a focus group study where road users' needs and experiences of night-time traffic in urban areas were discussed. The aim of the field study was to compare the night-time visibility distance of cycle crossings to the night-time visibility distance of bicyclists at the corresponding cycle crossings. This was tested both for dry and wet road surface. Twelve volunteers participated in the study; six at dry road surface and six at wet road surface conditions. They sat as passengers in an instrumented car at night travelling along a test route including a total of 19 cycle crossings. The participants indicated when they noticed bicyclists (stationary dummies) and cycle crossings along the test route, and the visibility distance was registered and stored.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2010. , 58 p.
Series
VTI rapport, ISSN 0347-6030 ; 691A
Keyword [en]
Cyclist crossing, Cyclist, Visibility, Visibility distance, Darkness, Wet road, Luminance, Test, In situ
Keyword [sv]
Cykelöverfarter, Cyklister, Synbarhet, Siktsträcka, Mörker, Våta vägbanor, Luminans, Test, In situ
National Category
Infrastructure Engineering
Research subject
Road: Highway design, Road: Safety devices
Identifiers
URN: urn:nbn:se:vti:diva-1777Archive number: TRV 2010/582, AL90 B 2007:24763OAI: oai:DiVA.org:vti-1777DiVA: diva2:670567
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2016-02-25Bibliographically approved

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Nygårdhs, SaraFors, CarinaEriksson, LarsNilsson, Lena
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