Target detection distances under different road lighting intensities

Tutkimustuotos: Lehtiartikkeli

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Bibtex - Lataa

@article{e810ea42baea4e31a78b912d99f3f03e,
title = "Target detection distances under different road lighting intensities",
abstract = "PurposeRoad 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 wasdetected 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.ConclusionThe 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.",
keywords = "detection distance, road lighting, car headlights, combied effect, dimming, traffic safety",
author = "{Bozorg Chenani}, Sanaz and Matti Vaaja and Matti Kurkela and Iisakki Kosonen and Tapio Luttinen",
year = "2017",
month = "3",
day = "27",
doi = "10.1007/s12544-017-0234-z",
language = "English",
volume = "9",
journal = "EUROPEAN TRANSPORT RESEARCH REVIEW",
issn = "1867-0717",
publisher = "Springer Verlag",
number = "17",

}

RIS - Lataa

TY - JOUR

T1 - Target detection distances under different road lighting intensities

AU - Bozorg Chenani, Sanaz

AU - Vaaja, Matti

AU - Kurkela, Matti

AU - Kosonen, Iisakki

AU - Luttinen, Tapio

PY - 2017/3/27

Y1 - 2017/3/27

N2 - PurposeRoad 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 wasdetected 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.ConclusionThe 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.

AB - PurposeRoad 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 wasdetected 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.ConclusionThe 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.

KW - detection distance

KW - road lighting

KW - car headlights

KW - combied effect

KW - dimming

KW - traffic safety

U2 - 10.1007/s12544-017-0234-z

DO - 10.1007/s12544-017-0234-z

M3 - Article

VL - 9

JO - EUROPEAN TRANSPORT RESEARCH REVIEW

JF - EUROPEAN TRANSPORT RESEARCH REVIEW

SN - 1867-0717

IS - 17

ER -

ID: 11193431