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Author E. Olvera-Gonzalez; D. Alaniz-Lumbreras; V. Torres-Argüelles; E. González-Ramírez; J. Villa-Hernández; M. Araiza-Esquivel; R. Ivanov-Tsonchev; C. Olvera-Olvera; V.M. Castaño
Title A LED-based smart illumination system for studying plant growth Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal
Volume Issue Pages 1-12
Keywords Lighting
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 644
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Author Peden, M.; Scurfield, R.; Sleet, D.; Mohan, D.; Hyder, A. A.; Jarawan, E.; Mathers, C.
Title World report on road traffic injury prevention. Type Journal Article
Year 2004 Publication Abbreviated Journal
Volume Issue Pages
Keywords Lighting
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 645
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Author Scott, R.
Title THE RELATIONSHIP BETWEEN ROAD LIGHTING QUALITY AND ACCIDENT FREQUENCY – TRRL LABORATORY REPORT 929. Type Journal Article
Year 1980 Publication Abbreviated Journal
Volume Issue Pages
Keywords Lighting; quality; accident rate; accident; frequency; luminance; glare; uniformity; urban area; daylight; darkness; surfacing; pedestrian
Abstract many studies have related changes in accident frequency to the presence of street lighting, and a few have examined its variation over a range of lighting quality, as measured by illuminance. this investigation attempts to find which of several measures of lighting (describing quantity – as represented by luminance or illuminance – uniformity and glare) most clearly explain variations in accident frequency. about 100 lit sites, almost all in built-up areas, were measured for lighting quality in dry-road conditions. the lighting variables measured were related to the dark:day ratios of accident frequency for the same sites. the strongest relationship found was that for average road surface luminance: in the range 0.5-2.0 candelas/m2, it is estimated that an increase of 1 cd/m2 is associated with a 35 per cent lower accident ratio. other measures of luminance and illuminance were also found to be related to accident ratio (and to each other), but not as clearly as was average road luminance, which is therefore the preferred explanatory variable. analysis of pedestrian and non-pedestrian accidents separately did not reveal a relationship between the former and lighting quality. in contrast, non-pedestrian accidents showed similar relationships to those for all accidents, with the addition of a possible relationship with overall uniformity of luminance.(a)
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Call Number LoNNe @ kagoburian @ Serial 647
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Author Sullivan, J.M.; Flannagan, M.J.
Title Determining the potential safety benefit of improved lighting in three pedestrian crash scenarios Type Journal Article
Year 2007 Publication Accident; Analysis and Prevention Abbreviated Journal Accid Anal Prev
Volume 39 Issue 3 Pages 638-647
Keywords Lighting; Accidents, Traffic/*prevention & control/statistics & numerical data; Automobile Driving/*psychology; Darkness/*adverse effects; *Environment Design; Humans; Lighting/*standards; Prevalence; Risk; *Safety; Time; *Visual Perception; *Walking
Abstract The influence of light level was determined for three pedestrian crash scenarios associated with three adaptive headlighting solutions-curve lighting, motorway lighting, and cornering light. These results were coupled to corresponding prevalence data for each scenario to derive measures of annual lifesaving potential. For each scenario, the risk associated with light level was determined using daylight saving time (DST) transitions to produce a dark/light interval risk ratio; prevalence was determined using the corresponding annual crash rate in darkness for each scenario. For curve lighting, pedestrian crashes on curved roadways were examined; for motorway lighting, crashes associated with high speed roadways were examined; and for cornering light, crashes involving turning vehicles at intersections were examined. In the curve analysis, lower dark/light crash ratios were observed for curved sections of roadway compared to straight roads. In the motorway analysis, posted speed limit was the dominant predictor of this ratio for the fatal crash dataset; road function class was the dominant predictor of the ratio for the fatal/nonfatal dataset. Finally, in the intersection crash analysis, the dark/light ratio for turning vehicles was lower than for nonturning vehicles; and the ratio at intersections was lower than at non-intersections. Relative safety need was determined by combining the dark/light ratio with prevalence data to produce an idealized measure of lifesaving potential. While all three scenarios suggested a potential for safety improvement, scenarios related to high speed roadway environments showed the greatest potential.
Address The University of Michigan Transportation Research Institute, 2901 Baxter Road, Ann Arbor, MI 48109-2150, USA. jsully@umich.edu <jsully@umich.edu>
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Publisher Place of Publication Editor (up)
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0001-4575 ISBN Medium
Area Expedition Conference
Notes PMID:17126278 Approved no
Call Number LoNNe @ kagoburian @ Serial 648
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Author Viikari, M.
Title Modeling spectral sensitivity at low light levels based on mesopic visual performance Type Journal Article
Year 2008 Publication Clin Ophthalmol Abbreviated Journal
Volume 2 Issue 1 Pages 173–185
Keywords Lighting
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Series Editor Series Title Abbreviated Series Title
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Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 649
Permanent link to this record