HIGHWAY LIGHTING RESEARCH

THE DEVELOPMENT OF THE USE OF SODIUM VAPOR AS AN ILLUMINANT AND ITS APPLICATION TO STREET AND HIGHWAY LIGHTING IS DISCUSSED. THE USE OF THIS NEW SOURCE OF LIGHT WILL MEAN MANY CHANGES IN PRESENT PRACTICES AND THE RESEARCH ENGINEERS ARE WORKING ON THE PROBLEM OF ITS MOST EFFICIENT USE. THE SODIUM LAMP DERIVES LIGHT FROM THE PASSAGE OF AN ELECTRIC CURRENT THROUGH A VAPOR OF SODIUM WITH A SMALL QUANTITY OF NEON GAS. WHEN THE CURRENT IS TURNED ON THE LAMP FIRST GLOWS RED AS THE NEON GAS CARRIES THE ARC AND THEN TURNS GRADUALLY TO A GOLDEN YELLOW AS THE SODIUM VAPORIZES. THE PROCESS IS FULLY DESCRIBED. THE APPLICATION OF THE LAMP TO HIGHWAY LIGHTING IS CONSIDERED. THE RELATION OF VARIOUS KINDS OF ROAD SURFACES TO LIGHTING PROBLEMS IS BROUGHT OUT, AND THE POSSIBLE FUTURE ECONOMIES THAT MAY BE REALIZED ARE DISCUSSED. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/13/13-015.pdf
• Supplemental Notes:
  • Vol 13, ParT I, PP 244-262, 12 FIG. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Loewe, A F
  • Ahles, C C
• Publication Date: 1934

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 7-8, 1933. Part I: Reports of Research Committees and Papers
• Serial:
  • Highway Research Board Proceedings
  • Volume: 13
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Applications; Economics; Luminaires; Sodium; Sodium vapor lamps; Street lighting; Surface course (Pavements); Vapors
• Uncontrolled Terms: Neon
• Old TRIS Terms: Sodium lamps
• Subject Areas: Economics; Highways; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00221000
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 23 1971 12:00AM