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Author Bieske, K.; Schierz, C.
Title (up) Dynamic Lighting – Perception of Luminous Colour Variation. Type Journal Article
Year 2010 Publication In Proceedings of CIE 2010 „Lighting quality and energy efficiency“. Abbreviated Journal
Volume Issue Pages 290–297
Keywords Lighting
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 997
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Author Dobler, G.; Ghandehari, M.; Koonin, S.E.; Nazari, R.; Patrinos, A.; Sharma, M.S.; Tafvizi, A.; Vo, H.T.; Wurtele, J.S.
Title (up) Dynamics of the urban lightscape Type Journal Article
Year 2015 Publication Information Systems Abbreviated Journal Information Systems
Volume 54 Issue Pages 115–126
Keywords lighting, society, skyglow
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ISSN 0306-4379 ISBN Medium
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Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 1212
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Author Campisi, D.; Gitto, S.; Morea, D.
Title (up) Economic feasibility of energy efficiency improvements in street lighting systems in Rome Type Journal Article
Year 2017 Publication International Journal of Energy Economics and Policy Abbreviated Journal
Volume 7 Issue 1 Pages 190-198
Keywords Economics; Energy; Society; LED lighting; LED; real options
Abstract This study evaluates an investment project concerning the redevelopment of the public lighting of the Municipality of Rome. In particular, we consider the replacing of the traditional lamps of the system with LED lamps. We consider the factors that affect this kind of project: the cost of energy, the manteinance cost, the investment cost and the Weighted Average Cost of Capital (WACC). Our results underline the reduction of energy consumption and of the maintenance costs, lower emissions of CO2 into the atmosphere, the reduction of light pollution, the positive effects on road safety and the indipendence by incentives.
Address Department of Industrial Engineering, University of Rome Tor Vergata, Italy
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Publisher Elsevier Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ intern @ Serial 2629
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Author Sweater-Hickcox, K.; Narendran, N.; Bullough, J.; Freyssinier, J.
Title (up) Effect of different coloured luminous surrounds on LED discomfort glare perception Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal Lighting Research and Technology
Volume 45 Issue 4 Pages 464-475
Keywords perception; subjective; LED; LED lighting; spectral power distribution; SPD
Abstract Recently, there has been increased interest in energy-efficient lighting as energy resources become higher in demand. Anecdotal evidence suggests that certain populations believe light-emitting diodes (LED) produce more glare than traditional technologies. This may be due to a number of factors such as spectral power distribution (SPD), source luminance, or beam intensity distribution. A study was conducted to assess the effect of different SPDs on the perception of discomfort glare from an LED source. For the range of conditions evaluated, the presence of any luminous surround significantly reduced the perception of discomfort glare from the LED array. The blue luminous surround reduced discomfort glare perception significantly less than the white or the yellow luminous surrounds. The implications for solid-state lighting systems are discussed.
Address Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, USA
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ISSN 1477-1535 ISBN Medium
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Notes Approved no
Call Number IDA @ john @ Serial 338
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Author J Uttley,, S Fotios, C Cheal
Title (up) Effect of illuminance and spectrum on peripheral obstacle detection by pedestrians Type Journal Article
Year 2015 Publication Lighting Research & Technology Abbreviated Journal
Volume 49 Issue 2 Pages 211-227
Keywords Public Safety; Lighting
Abstract Obstacle detection is an important visual task for pedestrians. An experiment was carried out to measure the ability to detect peripheral obstacles under variations of illuminance and scotopic/photopic luminance ratio and with older and younger test participants. The LED array used in this work enabled scotopic/photopic ratio to be varied whilst chromaticity was held constant. The tests employed a full-scale model with dynamic fixation and walking to better simulate pedestrian experience than in past work. Detection performance increased with illuminance, reaching a plateau at 2.0 lux. A higher scotopic/photopic ratio improved obstacle detection but only at the lowest illuminance used in this study (0.2 lux). Older participants showed poorer obstacle detection performance than younger participants but again only at the lowest illuminance.
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Call Number LoNNe @ kyba @ Serial 1768
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