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Author Andre, J.; Owens, D.A.
Title The Twilight Envelope: A User-Centered Approach to Describing Roadway Illumination at Night Type Journal Article
Year 2001 Publication Human Factors: The Journal of the Human Factors and Ergonomics Society Abbreviated Journal
Volume (down) 43 Issue 4 Pages 620-630
Keywords Society
Abstract Visual recognition functions, such as acuity and contrast sensitivity, deteriorate rapidly over the declining luminances found during civil twilight. Thus civil twilight, a critical part of the transition between daylight and darkness, represents lighting conditions that may be useful to describe artificial illumination. Automotive headlamps project a three-dimensional beam that ranges from illumination levels comparable to daylight at the vehicle to the dark limit of civil twilight (3.3 1x) at some distance ahead. This twilight envelope is characterized as a distance beyond which foveal visual functions are severely impaired, and thus it provides a general, functional description of the useful extent of the headlamp beam. This user-centered approach to describing illumination is useful for characterizing visibility when driving at night or in other artificially lit environments. This paper discusses the twilight envelope approach and its application to intervehicle variations in headlamp systems. Actual or potential applications of this research include user-centered description of artificial illumination and driver/pedestrian safety education.
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Call Number LoNNe @ kagoburian @ Serial 988
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Author Edensor, T.; Millington, S.
Title Illuminations, Class Identities and the Contested Landscapes of Christmas Type Journal Article
Year 2009 Publication Sociology Abbreviated Journal Sociology
Volume (down) 43 Issue 1 Pages 103-121
Keywords Society
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ISSN 0038-0385 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 1034
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Author Cuttle, K.
Title Opinion: Lighting criteria for the future Type Journal Article
Year 2010 Publication Lighting Research and Technology Abbreviated Journal Lighting Research and Technology
Volume (down) 42 Issue 3 Pages 270
Keywords Society
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ISSN 1477-1535 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 1019
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Author Cuttle, C.
Title Towards the third stage of the lighting profession Type Journal Article
Year 2010 Publication Lighting Research and Technology Abbreviated Journal Lighting Research and Technology
Volume (down) 42 Issue 1 Pages 73-93
Keywords Society
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ISSN 1477-1535 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 1020
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Author Kamrowski, R.L.; Sutton, S.G.; Tobin, R.C.; Hamann, M.
Title Balancing artificial light at night with turtle conservation? Coastal community engagement with light-glow reduction Type Journal Article
Year 2015 Publication Environmental Conservation Abbreviated Journal Envir. Conserv.
Volume (down) 42 Issue 02 Pages 171-181
Keywords Society; behaviour; community engagement; conservation; constraints; light pollution; marine turtles
Abstract Artificial lighting is a significant threat to biodiversity. Although efforts to reduce lighting are crucial for species’ conservation efforts, management is challenging because light at night is integral to modern society and light use is increasing with population and economic growth. The development and evaluation of appropriate light management strategies will require positive public support, and a comprehensive understanding of public engagement with light pollution. This is the first study to examine public engagement with reducing light at night for the protection of a threatened species. A community campaign to reduce artificial light use was initiated in 2008 to protect marine turtles at a globally significant nesting beach. Semi-structured questionnaires assessed community engagement with light-glow reduction, using an existing theoretical constraints framework. Despite high levels of cognitive and affective engagement (knowledge and concern), behavioural engagement (action) with light reduction in this community was limited. Community perceptions of light reduction were dominated by ‘uncertainty and scepticism’ and ‘externalizing responsibility/blame’, implying that behavioural engagement in this community may be increased by addressing these widely-held perceptions using modified campaign materials and/or strategic legislation. Further refinement of the theoretical constraints framework would better guide future empirical and conceptual research to improve understanding of public engagement with critical environmental issues.
Address School of Earth and Environmental Sciences, James Cook University, Townsville, QLD, 4811, Australia, ruth.kamrowski(at)my.jcu.edu.au
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Publisher Cambridge Place of Publication Editor
Language English Summary Language English Original Title
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ISSN 0376-8929 ISBN Medium
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Call Number IDA @ john @ Serial 1284
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