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Author (up) John Bullough
Title Factors Affecting Sign Visibility, Conspicuity, and Legibility: Review and Annotated Bibliography Type Journal Article
Year 2017 Publication Interdisciplinary Journal of Signage and Wayfinding Abbreviated Journal
Volume 1 Issue 2 Pages 2-25
Keywords Lighting
Abstract This paper summarizes published research studies, technical reports and codes and standards related to the visibility (i.e., conspicuity and legibility) of signage. In the summary that follows, publications are grouped and discussed according to several different topics. First, the typographic and symbolic characteristics of signs and the information they carry are described (e.g., letter size, font selection, etc.); second, photometric, colorimetric and temporal properties of signs as they affect visibility; finally, environmental considerations (e.g., daytime versus nighttime viewing, whether a sign is located in a rural or urban area, etc.) as they influence sign design are reviewed. Annotated summaries of each publication in the literature review are included at the end of this paper.
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Call Number LoNNe @ kyba @ Serial 1762
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Author (up) John D. Bullough
Title Opinion: Will road lighting wither? Type Journal Article
Year 2017 Publication Lighting Research & Technology Abbreviated Journal
Volume 49 Issue Pages 672
Keywords Commentary; Lighting
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Call Number LoNNe @ kyba @ Serial 1761
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Author (up) Jones, B.A.
Title Spillover health effects of energy efficiency investments: Quasi-experimental evidence from the Los Angeles LED streetlight program Type Journal Article
Year 2018 Publication Journal of Environmental Economics and Management Abbreviated Journal Journal of Environmental Economics and Management
Volume 88 Issue Pages 283-299
Keywords Human Health; LED; public health; outdoor lighting; Los Angeles; economics; energy efficiency; breast cancer; fossil fuel carbon emissions
Abstract Payback estimates of energy efficiency investments often ignore public health externalities. This is problematic in cases where spillover health effects are substantial, such as when the application of new technology alters environmental exposures. When health externalities are included in return on investment calculations, energy efficiency programs may look more or less attractive than suggested by conventional “energy savings only” estimates. This analysis exploits the quasi-experiment provided by the 2009 Los Angeles (LA) LED streetlight efficiency program to investigate the returns on investments inclusive of an originally estimated health externality. Using the synthetic control method, we find that the LED streetlight program is associated with a lagged increase in breast cancer mortality of 0.479 per 100,000. Inclusive of the effects of LEDs on breast cancer and avoided carbon emissions, the LA LED program provides a −146.2% 10-year return compared to +118.2% when health outcomes and carbon emissions are ignored.
Address Department of Economics, University of New Mexico, 1 UNM Drive, MSC 05 3060, Albuquerque, NM, 87131, USA; bajones(at)unm.edu
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Publisher Elsevier Place of Publication Editor
Language English Summary Language English Original Title
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ISSN 0095-0696 ISBN Medium
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Call Number IDA @ john @ Serial 1976
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Author (up) Juntunen, E.; Tetri, E.; Tapaninen, O.; Yrjänä S.; Kondratyev, V; . Sitomaniemi, A.; Siirtola, H.; Sarjanoja, E.M.; Aikio, J.; Heikkinen, V
Title A smart LED luminaire for energy savings in pedestrian road lighting. Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal
Volume 47 Issue 1 Pages 103-115
Keywords Lighting
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Call Number LoNNe @ kagoburian @ Serial 639
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Author (up) Jørgensen, L. D., Tambo, T., & Xydis, G.
Title An efficiency evaluation of radar‐based obstruction lights controlling at a wind turbine test site Type Journal Article
Year 2019 Publication Wind Energy Abbreviated Journal
Volume 22 Issue 4 Pages
Keywords Lighting; Public Safety; Planning
Abstract In this study, an obstruction lights controlling (OLC) system based on a Terma SCANTER 5000 radar has been installed at a test centre for large wind turbines. The objective of this study was to evaluate the efficiency of the OLC system and to improve this efficiency by introducing new technological features. Once the first assessment had been carried out, new software with improved tracking functionalities was installed to the radar. With the new software, a second assessment was made to compare the new performance to the old one. To analyse the tracks, geographic information system (GIS) tools have been used. A new MATLAB script was developed to automate the assessment as well as to gather data on the tracks. These data sets were used to improve the system performance by introducing a radar cross section (RCS)/speed filter. The outcome of the study is a filter that can be implemented on the radar system to improve the efficiency of the system and reduce the time that obstruction lights need to be on for by 62.59%, without compromising the integrity of the system.
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Call Number IDA @ intern @ Serial 2298
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