HIGH PRESSURE SODIUM FOR ROADWAY LIGHTING

This paper discusses the advantages of replacing 400-watt mercury vapor lamps with 250-watt high pressure sodium lamps in a highway lighting system. The substitution provides an approximate 35% savings in energy, and an increase approximating 30% in initial horizontal lumen output, thus permitting higher mounting heights and greater spacing between light poles. This provides fewer poles, minimizing the roadside obstacles, in keeping with the present criteria for highway safety.

• Supplemental Notes:
  • Conference Record of 12th IAS Annual Meeting, Los Angeles, California, October 2-6, 1977.
• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  3 Park Avenue, 17th Floor
  New York, NY  United States  10016-5997
• Authors:
  • Miller, L
• Conference:
  • Conference Record of 12th IAS Annual Meeting, Los Angeles, California, October 2-6, 1977.
• Publication Date: 1977

Media Info

• Pagination: p. 381-384

Subject/Index Terms

• TRT Terms: Electric lamps; Energy; Energy conservation; Highway engineering; Highway safety; Highways; Illuminating engineering; Lighting systems; Luminous intensity; Mercury vapor lamps; Pressure; Sodium vapor lamps; Street lighting
• Uncontrolled Terms: High pressure
• Old TRIS Terms: Electric lighting; High pressure sodium lamps; Highway systems; Mercury lamps; Sodium lamps
• Subject Areas: Energy; Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00178093
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 12 1978 12:00AM