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Author Sullivan, J.M.; Flannagan, M.J. url  doi
openurl 
  Title The role of ambient light level in fatal crashes: inferences from daylight saving time transitions Type Journal Article
  Year 2002 Publication Accident Analysis & Prevention Abbreviated Journal Accident Analysis & Prevention  
  Volume 34 Issue 4 Pages 487-498  
  Keywords Public Safety; Lighting  
  Abstract The purpose of this study was to estimate the size of the influence of ambient light level on fatal pedestrian and vehicle crashes in three scenarios. The scenarios were: fatal pedestrian crashes at intersections, fatal pedestrian crashes on dark rural roads, and fatal single-vehicle run-off-road crashes on dark, curved roads. Each scenario's sensitivity to light level was evaluated by comparing the number of fatal crashes across changes to and from daylight saving time, within daily time periods in which an abrupt change in light level occurs relative to official clock time. The analyses included 11 years of fatal crashes in the United States, between 1987 and 1997. Scenarios involving pedestrians were most sensitive to light level, in some cases showing up to seven times more risk at night over daytime. In contrast, single-vehicle run-off-road crashes showed little difference between light and dark time periods, suggesting factors other than light level play the dominant role in these crashes. These results are discussed in the context of the possible safety improvements offered by new developments in adaptive vehicle headlighting.  
  Address (up)  
  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0001-4575 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2126  
Permanent link to this record
 

 
Author Boyce, P.R. url  doi
openurl 
  Title The benefits of light at night Type Journal Article
  Year 2019 Publication Building and Environment Abbreviated Journal Building and Environment  
  Volume 151 Issue Pages 356-367  
  Keywords Lighting; Society; Conservation  
  Abstract The use of light at night continues to increase. Simply put, this is because without light we are deprived of our premier sense, vision. By enabling vision the use of light at night delivers a number of benefits to people. Such benefits include greater safety for pedestrians and drivers, reduced fear of crime, more use of outdoor facilities after dark, enhanced economic growth and the creation of built and natural environments that are a source of beauty and entertainment. This suggests that the use of light at night is linked to some very basic human motivations which in turn means that people value such benefits and will not willingly abandon them. Fortunately, careful lighting design, soundly-based outdoor lighting standards and new lighting and sensor technology offer the possibility of providing the benefits of light at night while minimizing the impact on the environment.  
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  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0360-1323 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2171  
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Author Suk, J.Y.; Walter, R.J. url  doi
openurl 
  Title New nighttime roadway lighting documentation applied to public safety at night: A case study in San Antonio, Texas Type Journal Article
  Year 2019 Publication Sustainable Cities and Society Abbreviated Journal Sustainable Cities and Society  
  Volume 46 Issue Pages 101459  
  Keywords Lighting; Public Safety; Security; Planning  
  Abstract Built environment and public safety professionals view street lighting as an important factor in improving the well-being of the community at night. Extant research that has examined the relationship between street lighting and public safety has found inconclusive or mixed results and has called for more extensive lighting metrics. Using new lighting measurement technologies and geographic information science, this study builds on previous work to demonstrate new metrics to consider when evaluating public safety, specifically crime and traffic accidents. Downtown San Antonio, Texas is used as a case study to explore illuminance levels on roadways and the driver’s eye, and how these metrics can be used to understand the lighting characteristics of where crime and traffic accidents occur. The findings indicate that the central downtown district in San Antonio has higher illuminance levels than the existing roadway lighting guidelines while the residential downtown neighborhoods have insufficient light levels. Statistical analysis reveals that roadway illuminance levels are higher in areas where no crime occurred and driver’s eye illuminance levels are lower in areas with no traffic accidents. The findings prove the usefulness of new lighting documentation techniques and support the importance of considering illuminance metrics when assessing crime and traffic accidents at night.  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2210-6707 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2191  
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Author Bensch, G.; Peters, J.; Sievert, M. url  doi
openurl 
  Title The lighting transition in rural Africa — From kerosene to battery-powered LED and the emerging disposal problem Type Journal Article
  Year 2017 Publication Energy for Sustainable Development Abbreviated Journal Energy for Sustainable Development  
  Volume 39 Issue Pages 13-20  
  Keywords Lighting; Energy  
  Abstract People without electricity access, numbering today more than 500 million in rural Africa alone, have been using dim and sooty kerosene lamps and candles for their lighting purposes for decades. In the present paper, current lighting usage patterns are systematically assessed using detailed new survey data from seven countries across Sub-Saharan Africa. The data makes evident that a transition has taken place in recent years, both unnoticed by and without external support from governmental or non-governmental organizations: the rural population without electricity in Africa has replaced kerosene lights and candles by simple, yet more efficient and cleaner LED lamps powered by non-rechargeable batteries. Nevertheless, we also show that the discharged batteries are generally disposed of inappropriately in latrines or the nature. The toxic content of many dry-cell batteries and their accumulation at local litter hotspots may have harmful repercussions on health and the environment. We conclude by suggesting that rapid action is needed to, first, install an effective monitoring system on batteries that enter the continent and, second, put in place an appropriate waste management system.  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0973-0826 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2193  
Permanent link to this record
 

 
Author Wallace, H. D. openurl 
  Title Electric Lighting Policy in the Federal Government, 1880-2016 Type Journal Article
  Year 2018 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords History; Policy; Lighting  
  Abstract Federal policies have targeted electric lighting since the 1880s with varying success. This dissertation examines the history of those policies to understand policy makers’ intent and how their decisions affected the course of events. This qualitative study poses three research questions: How have changes in lamp efficacy affected policy development? How and why have federal policies targeted electric lighting? How have private sector actors adapted public policy to further their own goals? The analysis uses an interdisciplinary approach taking advantage of overlapping methodologies drawn from policy and political sciences, economics, and the history of technology. The concepts of path dependency, context, and actor networks are especially important. Adoption of electric lighting spurred the construction of complex and capital intensive infrastructures now considered indispensable, and lighting always consumed a significant fraction of US electric power. Engineers and scientists created many lamps over the decades, in part to meet a growing demand for energy efficient products. Invention and diffusion of those lamps occurred amid changing standards and definitions of efficiency, shifting relations between network actors, and the development of path dependencies that constrained efforts to affect change. Federal actors typically used lighting policy to conserve resources, promote national security, or to symbolically emphasize the onset of a national crisis. The study shows that after an initial introductory phase, lighting-specific policies developed during two distinct periods. The earlier period consisted of intermittent, crisis-driven federal interventions of mixed success. The later period featured a sustained engagement between public and private sectors wherein incremental adjustments achieved policy goals. A time of transition occurred between the two main periods during which technical, economic, and political contexts changed, while several core social values remained constant. In both early and later periods, private sector actors used policy opportunities to further commercial goals, a practice that public sector actors in the later period used to promote policy acceptance. Recently enacted energy standards removing ordinary incandescent lamps in favor of high efficiency lamps mark the end of the later period. Apparent success means that policy makers should reconsider how they use lighting to achieve future goals.  
  Address (up)  
  Corporate Author Thesis Ph.D. thesis  
  Publisher University of Maryland Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2210  
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