| Records |
Author  |
Huang, Z.; Liu, Q.; Westland, S.; Pointer, M.; Luo, M.R.; Xiao, K. |
| Title |
Light dominates colour preference when correlated colour temperature differs |
Type |
Journal Article |
| Year |
2018 |
Publication |
Lighting Research & Technology |
Abbreviated Journal |
Lighting Research & Technology |
| Volume |
50 |
Issue |
7 |
Pages |
995-1012 |
| Keywords |
Vision; Lighting |
| Abstract |
Colour preference for lighting is generally influenced by three kinds of contextual factors, the light, the object and the observer. In this study, a series of psychophysical experiments were conducted to investigate and compare the effect of certain factors on colour preference, including spectral power distribution of light, lighting application, observers’ personal colour preference, regional cultural difference and gender difference. LED lights with different correlated colour temperatures were used to illuminate a wide selection of objects. Participant response was quantified by a 7-point rating method or a 5-level ranking method. It was found that the preferred illumination for different objects exhibited a similar trend and that the influence of light was significantly stronger than that of other factors. Therefore, we conclude that the light itself (rather than, e.g. the objects that are viewed) is the most crucial factor for predicting which light, among several candidates with different correlated colour temperatures, an observer will prefer. In addition, some of the gamut-based colour quality metrics correlated well with the participants’ response, which corroborates the view that colour preference is strongly influenced by colour saturation. The familiarity of the object affects the ratings for each experiment while the colour of the objects also influences colour preference. |
| Address |
School of Printing and Packaging, Wuhan University, Luoyu Road 129, Wuhan, China; liuqiang(at)whu.edu.cn |
| Corporate Author |
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Thesis |
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| Publisher |
SAGE |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
English |
Original Title |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
1477-1535 |
ISBN |
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Approved |
no |
| Call Number |
IDA @ john @ |
Serial |
2256 |
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| Author |
Hyari, K.H.; Khelifi, A.; Katkhuda, H. |
| Title |
Multiobjective Optimization of Roadway Lighting Projects |
Type |
Journal Article |
| Year |
2016 |
Publication |
Journal of Transportation Engineering |
Abbreviated Journal |
J. Transp. Eng. |
| Volume |
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Issue |
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Pages |
04016024 |
| Keywords |
Lighting; multiobjective optimization; traffic safety; road safety; lighting design; uniformity; genetic algorithm |
| Abstract |
Roadway lighting systems play a major role in maintaining nighttime traffic safety as they reduce both the number and severity of nighttime traffic accidents. While the design of roadway lighting systems involves multiple objectives, past studies have focused on optimizing only one of the multiple objectives that should be considered. This paper presents a multiobjective optimization model for roadway lighting projects that simultaneously optimizes four design objectives. The incorporated objectives are (1) maximizing the average lighting level on the road surface; (2) maximizing the lighting uniformity along the roadway; (3) minimizing the glare to road users produced by the lighting system; and (4) minimizing the cost of operating the lighting system. The model is designed and developed as a multiobjective genetic algorithm to help decision-makers in their endeavor to provide efficient roadway lighting systems that strike a balance between the four conflicting objectives. The present model considers the following six design variables: type of lighting fixture, mounting height, spacing, fixture offset, fixture’s inclination, and fixture’s rotation angle. An application example is analyzed in this paper to clarify the use of the model and display its significant features in producing better lighting arrangements for roadways. |
| Address |
Dept. of Civil Engineering, Hashemite Univ., P.O. Box 150459, Zarqa 13115, Jordan; hyari(at)hu.edu.jo |
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Thesis |
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| Publisher |
ASCE |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
English |
Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0733-947X |
ISBN |
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Conference |
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Approved |
no |
| Call Number |
IDA @ john @ |
Serial |
1405 |
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| Author |
ILE The Institution of Lighting Engineers |
| Title |
GUIDANCE NOTES FOR THE REDUCTION OF OBTRUSIVE LIGHT |
Type |
Journal Article |
| Year |
2005 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-4 |
| Keywords |
Lighting |
| Abstract |
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Approved |
no |
| Call Number |
LoNNe @ kagoburian @ |
Serial |
636 |
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| Author |
ILP Institution of Lightinging Professionals |
| Title |
GUIDANCE NOTES FOR THE REDUCTION OF OBTRUSIVE LIGHT |
Type |
Journal Article |
| Year |
2011 |
Publication |
Notes |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1-10 |
| Keywords |
Lighting |
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no |
| Call Number |
LoNNe @ kagoburian @ |
Serial |
637 |
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| Author |
Isenstadt, S.; Petty, M.M.; Neumann, D. |
| Title |
Cities of Light: Two Centuries of Urban Illumination |
Type |
Book Whole |
| Year |
2015 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
Lighting; urban; cities; outdoor lighting; artificial lighting; urban design; city planning; urban studies; urban history; infrastructure |
| Abstract |
Cities of Light is the first global overview of modern urban illumination, a development that allows human wakefulness to colonize the night, doubling the hours available for purposeful and industrious activities. Urban lighting is undergoing a revolution due to recent developments in lighting technology, and increased focus on sustainability and human-scaled environments. Cities of Light is expansive in coverage, spanning two centuries and touching on developments on six continents, without diluting its central focus on architectural and urban lighting. Covering history, geography, theory, and speculation in urban lighting, readers will have numerous points of entry into the book, finding it easy to navigate for a quick reference and or a coherent narrative if read straight through. With chapters written by respected scholars and highly-regarded contemporary practitioners, this book will delight students and practitioners of architectural and urban history, area and cultural studies, and lighting design professionals and the institutional and municipal authorities they serve. At a moment when the entire world is being reshaped by new lighting technologies and new design attitudes, the longer history of urban lighting remains fragmentary. Cities of Light aims to provide a global framework for historical studies of urban lighting and to offer a new perspective on the fast-moving developments of lighting today. |
| Address |
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Thesis |
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| Publisher |
Routledge |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Series Issue |
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Edition |
First |
| ISSN |
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ISBN |
978-1138813915 |
Medium |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
IDA @ john @ |
Serial |
1086 |
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