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Target detection distances under different road lighting intensities

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Bozorg Chenani, Sanaz
dc.contributor.author Vaaja, Matti
dc.contributor.author Kurkela, Matti
dc.contributor.author Kosonen, Iisakki
dc.contributor.author Luttinen, Tapio
dc.date.accessioned 2018-05-22T14:51:29Z
dc.date.available 2018-05-22T14:51:29Z
dc.date.issued 2017-03-27
dc.identifier.citation Bozorg Chenani , S , Vaaja , M , Kurkela , M , Kosonen , I & Luttinen , T 2017 , ' Target detection distances under different road lighting intensities ' EUROPEAN TRANSPORT RESEARCH REVIEW , vol 9 , no. 17 . DOI: 10.1007/s12544-017-0234-z en
dc.identifier.issn 1867-0717
dc.identifier.other PURE UUID: e810ea42-baea-4e31-a78b-912d99f3f03e
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/target-detection-distances-under-different-road-lighting-intensities(e810ea42-baea-4e31-a78b-912d99f3f03e).html
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/20507796/10.1007_s12544_017_0234_z.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/31235
dc.description.abstract Purpose Road lighting illuminates road surface and surrounding areas of objects on a road, while car headlights illuminate vertical objects on a road. The goal of the study was to investigate the interaction between road lighting and car headlights at target detection distance. Method Target detection distances under different road lighting intensities and car headlights were studied with and without glare from an oncoming car. Dimmable high-pressure sodium lamps with three lighting levels 49%, 71% and 100% (3557, 5179 and 7252 lm) were used. Test drivers had to detect a small uniform standard target standing vertically on the straight road. Results In the absence of glare (low beam car headlights), road lighting intensity levels of 100% and 49% provided comparable detection distances, while at 71% of road lighting intensity visibility was the lowest. The target was seen in negative or positive contrast in 100% of road lighting. In 71% of road lighting, the target was detected in positive contrast. While, in 49% of road lighting target was seen in negative contrast. There was a significant difference in detection distances under different road lighting intensities when there was no glare from the oncoming car. The significance main effect was between 49% and 71% of road lighting intensities. In addition, no significant differences in the effect of road lighting intensities could be found under glare from the oncoming car. In the presence of glare from the oncoming car, targets were always in negative contrast. Both road lighting and car headlights are associated with detection distances. Conclusion The results of these experiments can give new insight to the development of intelligent road lighting considering the combined effect of road lighting and car headlights. The results provide useful insight to dim the lighting in order to save energy without impairing the detection of objects. en
dc.format.extent 10
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries EUROPEAN TRANSPORT RESEARCH REVIEW en
dc.relation.ispartofseries Volume 9, issue 17 en
dc.rights openAccess en
dc.subject.other 218 Environmental engineering en
dc.title Target detection distances under different road lighting intensities en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Built Environment
dc.subject.keyword detection distance
dc.subject.keyword road lighting
dc.subject.keyword car headlights
dc.subject.keyword combied effect
dc.subject.keyword dimming
dc.subject.keyword traffic safety
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201805222675
dc.identifier.doi 10.1007/s12544-017-0234-z
dc.type.version publishedVersion

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