Guide for optimizing the effectiveness and the efficiency of roadway lighting.

Details

• Creators:
  Bullough, J. D.
• Corporate Creators:
  Rensselaer Polytechnic Institute. Lighting Research Center
• Corporate Contributors:
  New York State Energy Research and Development Authority ; New York (State). Dept. of Transportation
• Subject/TRT Terms:
  Energy High Mast Lighting Highway Safety Light Lighting Lighting Columns Light Sources Luminaires Mesopic Vision Parkways Residential Streets Rural Highways Safety Visibility Vision Visual Efficacy

  More +
• Publication/ Report Number:
  C-10-14
• Resource Type:
  Tech Report
• Geographical Coverage:
  New York
• Edition:
  Final report; 2011-2012.
• Corporate Publisher:
  Rensselaer Polytechnic Institute. Lighting Research Center
• Abstract:
  The objective of the present project was to develop a simple guide for roadway lighting replacement
  
  approaches using new light source technologies to maintain visibility for safety, while reducing energy use.
  
  Several roadway types were evaluated: parkways, residential streets and rural intersections. The guide is to
  
  be suitable for a non-technical readership familiar with roadway design and safety issues, but not
  
  necessarily with lighting. A review of published literature and a survey of engineers from New York State
  
  and local transportation agencies were conducted. Based on this information as well as data on new light
  
  source technologies, a series of roadway types for inclusion in the guide was selected, and
  
  recommendations for roadway lighting system replacement were developed. Analyses of the visual efficacy
  
  produced by different lighting systems under nighttime conditions, and the performance characteristics of
  
  light emitting diode (LED) and induction fluorescent lighting systems, resulted in recommendations for
  
  replacement of high pressure sodium (HPS) lighting systems. The resulting energy savings ranged from
  
  about 7% to 50% depending upon the roadway type. Energy savings for isolated rural intersections could
  
  depend upon the level of pedestrian traffic expected. A number of new light sources that produce “whiter”
  
  light than the incumbent HPS technology used on most roadways have been developed and significantly
  
  improved in the past decade. Using these technologies in combination with recent information about driver
  
  and pedestrian vision under nighttime conditions could result in energy savings for different roadway types.
  
  A guide for replacement strategies resulting from the present project contains pointers to information about
  
  lighting policies, practices, technologies, and visual efficacy that could assist lighting decision-makers with
  
  other scenarios not discussed in the guide.
  
  
• Format:
  PDF
• Funding:
  Contract No. 21151
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:898f1acff4c90c34dc1c269ac44d55d2d515f141d2379ff7e3534f7cb05bab9f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24626/dot_24626_DS1.pdf
• File Type:
  [PDF - 1.32 MB ]