toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Fotios, S., Price, T url  openurl
  Title Road lighting and accidents: Why lighting is not the only answer Type Journal Article
  Year 2017 Publication Lighting Journal Abbreviated Journal  
  Volume 82 Issue 5 Pages 22-26  
  Keywords Lighting; Public Safety  
  Abstract (up) Tony Price and Steve Fotios point out that while road lighting can be a significant counter measure to accidents, and that higher levels might help, the presence of road lighting does not guarantee all accidents will be avoided.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language 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 LoNNe @ kyba @ Serial 1767  
Permanent link to this record
 

 
Author van Schalkwyk, I.; Venkataraman, N.; Shankar, V.; Milton, J.; Bailey, T.; Calais, K. url  openurl
  Title Evaluation of the Safety Performance of Continuous Mainline Roadway Lighting on Freeway Segments in Washington State Type Report
  Year 2016 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords Public Safety; traffic; traffic safety; road safety; continuous roadway lighting; Washington; United States  
  Abstract (up) Washington State Department of Transportation (WSDOT) evaluated continuous roadway lighting on mainline freeway segments in Washington State. An extensive literature review on the safety performance of roadway lighting was completed. As part of this research effort WSDOT developed multivariate random parameter (RP) models with specific lighting variables for continuous lighting on mainline freeway segments. Roadway lighting is often used as a countermeasure to address nighttime crashes and this research evaluates common assumption related to roadway lighting. The models developed for this research use crashes from the end of civil dusk twilight to the start of civil dawn twilight since lighting systems are of limited value outside these timeframes. Natural light conditions were estimated for crashes based on location and time of the crash event. Based on the RP results, the research team concludes that the contribution of continuous illumination to nighttime crash reduction is negligible. In addition to the findings on safety performance, a pilot LED project on US101 demonstrated that LED roadway lighting can significantly increase energy efficiency and environmental stewardship (e.g., reducing greenhouse gas emissions) while maintaining safety performance outcomes. The research team recommended modification to WSDOT design policy, including removal of the requirement of continuous mainline lighting and reduction of lighting where segment specific analysis indicates appropriate.  
  Address Washington State Department of Transportation 310 Maple Park Ave SE, Olympia, WA, USA  
  Corporate Author Thesis  
  Publisher Washington State Department of Transportation Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title WSDOT Research Report Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial 1427  
Permanent link to this record
 

 
Author Doleac, J.L.; Sanders, N.J. url  doi
openurl 
  Title Under the Cover of Darkness: How Ambient Light Influences Criminal Activity Type Journal Article
  Year 2015 Publication Review of Economics and Statistics Abbreviated Journal Review of Economics and Statistics  
  Volume 97 Issue 5 Pages 1093-1103  
  Keywords Public Safety; Crime  
  Abstract (up) We exploit daylight saving time (DST) as an exogenous shock to daylight, using both the discontinuous nature of the policy and the 2007 extension of DST, to consider the impact of light on criminal activity.Regression discontinuity estimates show a 7% decrease in robberies following the shift to DST. As expected, effects are largest during the hours directly affected by the shift in daylight. We discuss our findings within the context of criminal decision making and labor supply, and estimate that the2007 DST extension resulted in $59 million in annual social cost savings from avoided robberies.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0034-6535 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 2836  
Permanent link to this record
 

 
Author Schuler, L.D.; Schatz, R.; Berweger, C.D. url  doi
openurl 
  Title From global radiance to an increased local political awareness of light pollution Type Journal Article
  Year 2018 Publication Environmental Science & Policy Abbreviated Journal Environmental Science & Policy  
  Volume 89 Issue Pages 142-152  
  Keywords Remote Sensing; Public Safety; Animals  
  Abstract (up) We present a novel transparent method to analyze measurements of the Suomi NPP (Suomi National Polar-orbiting Partnership) satellite in night vision, into luminous intensity and luminance on the community level, with a special focus to address light planners and non-experts, and for the first time, to further address politicians, decision-makers and law-makers, and governmental agencies. We checked the propagated efficiency of road lighting and its impact on luminous flux, and identified a waste of light emissions in the largest city of Switzerland, Zurich. We looked at security (issues like criminal acts) and found no correlation with communities’ luminous intensity. We assessed road safety (accidents) against local luminance and found no evidence of darkness being more risky when the overall distribution of illuminance on roads is considered. We screened crayfish habitats in the Canton of Zurich against local illuminance and found clear evidence of preferred darkness for the living. Based on this finding, we propose an upper limit for light immissions in the crayfish habitats. These four analyses have been chosen to demonstrate the usefulness of Suomi NPP's coverage in combination with our approach. We could apply it to ecological, social and economical topics. We hope others will follow and we can draw more attention of governments to take action to reduce the light pollution on local levels, like Langnau am Albis of Switzerland has exemplified.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1462-9011 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number GFZ @ kyba @ Serial 1965  
Permanent link to this record
 

 
Author Neale, W., Marr, J., McKelvey, N., & Kuzel, M. url  doi
openurl 
  Title Nighttime Visibility in Varying Moonlight Conditions Type Journal Article
  Year 2019 Publication SAE Technical Paper 2019-01-1005 Abbreviated Journal  
  Volume Issue Pages  
  Keywords Public Safety; Moonlight; Vision  
  Abstract (up) When the visibility of an object or person in the roadway from a driver’s perspective is an issue, the potential effect of moonlight is sometimes questioned. To assess this potential effect, methods typically used to quantify visibility were performed during conditions with no moon and with a full moon. In the full moon condition, measurements were collected from initial moon rise until the moon reached peak azimuth. Baseline ambient light measurements of illumination at the test surface were measured in both no moon and full moon scenarios. Additionally, a vehicle with activated low beam headlamps was positioned in the testing area and the change in illumination at two locations forward of the vehicle was recorded at thirty-minute intervals as the moon rose to the highest position in the sky. Also, two separate luminance readings were recorded during the test intervals, one location 75 feet in front and to the left of the vehicle, and another 150 feet forward of the vehicle. These luminance readings yielding the change in reflected light attributable to the moon. In addition to the quantitative measurement of light contributed by the moon, documentation to the change in visibility of objects and pedestrians located on the roadway were documented through photographs. Calibrated nighttime photographs were taken from the driver’s perspective inside the vehicle with low beam headlamps activated. The photographs were analyzed after testing to determine how the light intensity of the pixels in the photographs changed at each thirty-minute interval due to the additional light contribution from the moon. The results of this testing indicate that the quantifiable change in visibility distance attributable to added moonlight was negligible, and in real-world driving situations, the effect of additional illumination from a full moon would be unlikely to affect the detection of an object or pedestrian in or near the travel lane of the roadway.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language 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 IDA @ intern @ Serial 2355  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: