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Author Kyba C.C.M., Ruby A., Kuechly H.U., Kinzey B., Miller N., Sanders J., Barentine J., Kleinodt R., Espey B.
Title Direct measurement of the contribution of street lighting to satellite observations of nighttime light emissions from urban areas Type Journal Article
Year 2020 Publication Lighting Research & Technology Abbreviated Journal
Volume in press Issue Pages
Keywords Remote Sensing; Lighting; Energy
Abstract Nighttime light emissions are increasing in most countries worldwide, but which types of lighting are responsible for the increase remains unknown. Also unknown is what fraction of outdoor light emissions and associated energy use are due to public light sources (i.e. streetlights) or various types of private light sources (e.g. advertising). Here we show that it is possible to measure the contribution of street lighting to nighttime satellite imagery using ‘smart city’ lighting infrastructure. The city of Tucson, USA, intentionally altered its streetlight output over 10 days, and we examined the change in emissions observed by satellite. We find that streetlights operated by the city are responsible for only 13% of the total radiance (in the 500–900 nm band) observed from Tucson from space after midnight (95% confidence interval 10–16%). If Tucson did not dim their streetlights after midnight, the contribution would be 18% (95% confidence interval 15–23%). When streetlights operated by other actors are included, the best estimates rise to 16% and 21%, respectively. Existing energy and lighting policy related to the sustainability of outdoor light use has mainly focused on street lighting. These results suggest an urgent need for consideration of other types of light sources in outdoor lighting policy.
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Call Number GFZ @ kyba @ Serial (down) 3185
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Author Gawad I. O.; Bahgat H.; Mohamed R. O.
Title Sustainable Potentials and Limitations of Using Media Façades in Egypt Type Journal Article
Year Publication Ierek Press Abbreviated Journal
Volume Issue Pages 99 - 110
Keywords Lighting
Abstract Media Façade is expressed in many cities by providing new attractive city images. The term ‘Media Façade’ is a façade that is functionally and aesthetically specific and thus it represents the integration of architecture, technology. This integration is applied to represent new form of modern art and communication (Haeusler et al., 2012). Implementing new technology such as ” Media Façade ”following the purpose of fashion trend or adding new stylistic feature without being well studied will cause a massive impact on architecture.

This technology ” Media Façade ” started to be used in Egypt in various buildings with different functions. This paper will firstly illustrate what is Media Façade then state the social, cultural and environmental impacts of these techniques by analyzing local examples using SWOT analysis.
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ISSN 2537-0154 ISBN Medium
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Notes Approved no
Call Number UP @ altintas1 @ Serial (down) 3176
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Author Marimuthu C.; Kirubakaran V.
Title Carbon and Energy Pay Back Period for the Solar Street Light using Life Cycle Assessment Type Journal Article
Year 2015 Publication International Journal of ChemTech Research Abbreviated Journal
Volume 8 Issue 3 Pages 1125-1130
Keywords Lighting; Economics
Abstract Electronic street lights are big consumers of energy, costing millions to cities and municipalities around the world. Solar Street light is one of the method to reduce the power consumption by generate the energy using the solar Photovoltaic panel. This system includes the power generators (panel), storage (batteries) and management (controller) as well as the light, poles and weather proof housing for batteries. Life cycle inventories are based on manufacturers data combined with additional calculation and assumption. The Life Cycle Assessment (LCA) methodology used in this research was based on the ISO 14040 and 14044 series. In this paper, the LCA method is used to investigate the environmental impacts of two types of street light technology, conventional street light and solar street light. The cradle to grave analysis for conventional and solar street light includes raw material extraction, production, uses and end of life scenario. The detail investigation has made for the existing solar street light present at Gandhigram Rural University, Dindigul Dist, Tamil Nadu. The specification of the solar street light is 80W capacity, 1.2 m2 area of panel and 135Ah – 12V battery. The total no of poles is 70. For the above system carbon intensity, Energy Pay Back Period and Carbon Pay Back Period have been calculated and compared with conventional street light. The result from the study will support local decision makers when seeking a balance between the environmental, financial and social requirements of public lighting services.
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ISSN 0974-4290 ISBN Medium
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Notes Approved no
Call Number UP @ altintas1 @ Serial (down) 3147
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Author Figueiro, M.G.; Nagare, R.; Price, L.L.A.
Title Non-visual effects of light: How to use light to promote circadian entrainment and elicit alertness Type Journal Article
Year 2017 Publication Lighting Research & Technology Abbreviated Journal
Volume 50 Issue 1 Pages 38-62
Keywords Human Health; Lighting
Abstract In addition to stimulating the visual system, light incident on the retina stimulates other biological functions, also referred to as non-visual responses. Among the most notable biological functions are human circadian rhythms, which are bodily rhythms that, in constant darkness, oscillate with a period close to, but typically slightly longer than 24 hours. Twenty-four-hour light–dark patterns incident on the retina are the major synchroniser of circadian rhythms to the local time on Earth. Entrainment of circadian rhythms has been implicated in health and well-being. Light can also elicit an acute alerting effect on people, similar to a ‘cup of coffee.’ This review summarises the literature on how light affects entrainment and alertness and how it can be used to achieve these aims.
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Call Number GFZ @ kyba @ Serial (down) 3133
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Author Spur, M.; Houel, N.; Tourre, V.
Title Visualizing Multilayered Geospatial Data In Virtual Reality To Assess Public Lighting Type Journal Article
Year 2020 Publication ISPRS – International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences Abbreviated Journal Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.
Volume Xliii-B4-2020 Issue Pages 623-630
Keywords Lighting; Instrumentation; Vision
Abstract With the improvement and proliferation of virtual reality devices, their use for research and professional activity is broadening,fostering the advent of the field of immersive analytics, as is their acceptance among consumers. Other than the heightened sense of immersion into visualized data they provide, they also make displays of much larger apparent size and different positioning practical than what would be possible otherwise. Drawing on these benefits, we implemented a development of Multiple and Coordinated Displays (MCVs) for geovisualization that stacks different layers of data above each other, tilted for legibility. In a formal experiment, we evaluated it and two other, comparable MCV methods implemented in VR for their usefulness in analyzing public perception and soliciting public feedback regarding urban street lighting. In that field, the direction has recently been shifting from purely systemic development to a participatory approach, thus our investigation was into how a system like this could facilitate participation that can yield actionable results. Previous analysis of interaction data and usability questionnaires reveals preferences for certain systems depending on user characteristics, with the stack system showing a slight advantage over a grid of layers and especially over temporal multiplexing. We show that regardless of MCV variation, participants were able to analyze and provide feedback on public lighting situations that can directly contribute to urbanist work. The MCV approach further aided in understanding their choices, as eye-tracking allowed us to analyze attention to individual data layers.
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ISSN 2194-9034 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial (down) 3105
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