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:
  • Light
  • Lighting columns
  • High mast lighting
  • Luminaires
  • Visibility
  • Vision
  • Rural highways
  • Energy
  • Highway safety
  • Parkways
  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.
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• Format:
  PDF
• Funding:
  Contract No. 21151
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24626/dot_24626_DS1.pdf
• File Type:
  [PDF - 1.32 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:898f1acff4c90c34dc1c269ac44d55d2d515f141d2379ff7e3534f7cb05bab9f