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Author Marchant, P.R.
Title Why Lighting Claims Might Well Be Wrong Type Journal Article
Year 2017 Publication International Journal of Sustainable Lighting Abbreviated Journal Intl J of Sustainable Lighting
Volume 19 Issue 1 Pages 69-74
Keywords Security; Crime; lighting; regulation
Abstract This paper gives some background to claims of benefit from road lighting and why large beneficial claims may be suspect. It places this in the context of general concerns about the unreliability of claims in science using knowledge gained, particularly from investigations in the field of health-care. It points to the need to plan, proceed and check science in unbiased and rigorous ways. It gives recommendations for more transparency, asks for clear protocols to be produced in advance, that clear reports are written which follow appropriate reporting guidelines and that the data is accessible.
Address Leeds Beckett University, Leeds, United Kingdom LS1 3HE; P.Marchant(at)leedsbeckett.ac.uk
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Publisher IJSL Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ john @ Serial 1678
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Author Herie Park, Hyensou Pak, Chan-Su Lee
Title Prospect of Automotive Lighting Systems of Self-Driving Vehicles Type Journal Article
Year 2017 Publication Journal of the Korean Institute of Illuminating and Electrical Installation Engineers Abbreviated Journal
Volume 31 Issue 8 Pages 1-8
Keywords Lighting
Abstract Light sources and lighting technology adapted to vehicles have been developed to assist drivers’ safety and to perceive other vehicles and pedestrians during the nighttime. As autonomous vehicles driven by data obtained from sensors are shown up, the role of the automotive lighting system should be reconsidered for the future traffic environment. This paper presents the future prospects of automotive lighting systems adapted to self-driving vehicles. It describes a current state of automotive lighting systems, and roles of the lighting systems suitable for self-driving vehicles. It also deals with the related topics of automotive lightings such as energy management, light pollution, security, and hybrid lighting systems for the road that combine with computer-and human-drivers during a transition period.
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Notes Approved no
Call Number LoNNe @ kyba @ Serial 1742
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Author Jin-Joo Lee, Seong-Sik Yoo, Ho-Seok Kang, Dong-Hee Kim, Jin-Ho Nam, Hyun-Ji Kim, Hoon Kim
Title A Research on Visual Performance at Different Ages Depending on Color Temperature of Headlights Type Journal Article
Year 2017 Publication Journal of the Korean Institute of Illuminating and Electrical Installation Engineers Abbreviated Journal
Volume 31 Issue 8 Pages 40-48
Keywords Lighting
Abstract Under night-time driving conditions, both cones and rods in eye’s retina simultaneously act to influence mesopic vision in two areas: central and peripheral visions. However, as people age, the amount of light received as well as the color temperature perceived by the human eyes also change. This research, through simulations and scaled down experiments with various headlight color temperatures and two levels of fixed brightness, deals with differences in ability to detect and identify obstacles by the subjects in their 20’s and 50’s.

According to the results obtained from the experiments on peripheral vision, subjects in their 20’s detected the obstacles more quickly at the combined color temperature of 3,000K+4,500K than at the single color temperature of 4,500K, and likewise at 3,000K+5,500K than at 5,500K; this tendency was significantly more noticeable for the subjects in their 50’s. As for the central vision, the results showed that there were no significant differences due to color temperature between the subjects in their 20’s and those in their 50’s. Moreover, the landolt ring experiment conducted under low luminance yielded higher percentage of correct answers at combined color temperatures.
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Notes Approved no
Call Number LoNNe @ kyba @ Serial 1743
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Author Kocifaj, M.
Title Towards a Comprehensive City Emission Function (CCEF) Type Journal Article
Year 2018 Publication Journal of Quantitative Spectroscopy and Radiative Transfer Abbreviated Journal JQSRT
Volume 205 Issue Pages 253-266
Keywords Lighting; Skyglow
Abstract The comprehensive city emission function (CCEF) is developed for a heterogeneous light-emitting or blocking urban environments, embracing any combination of input parameters that characterize linear dimensions in the system (size and distances between buildings or luminaires), properties of light-emitting elements (such as luminous building façades and street lighting), ground reflectance and total uplight-fraction, all of these defined for an arbitrarily sized 2D area. The analytical formula obtained is not restricted to a single model class as it can capture any specific light-emission feature for wide range of cities. The CCEF method is numerically fast in contrast to what can be expected of other probabilistic approaches that rely on repeated random sampling. Hence the present solution has great potential in light-pollution modeling and can be included in larger numerical models. Our theoretical findings promise great progress in light-pollution modeling as this is the first time an analytical solution to city emission function (CEF) has been developed that depends on statistical mean size and height of city buildings, inter-building separation, prevailing heights of light fixtures, lighting density, and other factors such as e.g. luminaire light output and light distribution, including the amount of uplight, and representative city size. The model is validated for sensitivity and specificity pertinent to combinations of input parameters in order to test its behavior under various conditions, including those that can occur in complex urban environments. It is demonstrated that the solution model succeeds in reproducing a light emission peak at some elevated zenith angles and is consistent with reduced rather than enhanced emission in directions nearly parallel to the ground.
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Publisher ScienceDirect Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number LoNNe @ kyba @ Serial 1757
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Author 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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