FIELD EVALUATION OF ROADWAY LIGHTING MAINTENANCE FACTORS

EXTENSIVE FIELD TESTING OF LUMINAIRES IN SERVICE IN PHILADELPHIA WAS DONE DURING THE PAST YEAR. DATA IS PRESENTED WHICH CAN HELP IN THE DETERMINATION OF THREE OF THE FOUR VARIABLES CAUSING LIGHT LOSS: LAMP LUMEN DEPRECIATION (LLD), LUMINAIRE DIRT DEPRECIATION (LDD), AND REFLECTING SURFACE DETERIORATION (RSD). SINCE INSTALLATION AND MAINTENANCE RECORDS OF LUMINAIRES IN SERVICE IN PHILADELPHIA PROVIDE THE LAMP AND LUMINAIRE AGE, WASH CYCLES ARE ON AN ANNUAL BASIS AND ATMOSPHERIC CONDITIONS CAN BE APPROXIMATED, FAIRLY ACCURATE FACTORS CAN BE ESTABLISHED. THESE PROVIDE A REASONABLY ACCURATE MAINTENANCE FACTOR FOR STREET LIGHTS IN SERVICE, AS WELL AS FOR USE IN CALCULATIONS OF NEW INSTALLATIONS. /AUTHOR/

• Supplemental Notes:
  • Vol 66, No 2, PP 90-98
• Authors:
  • Oerkvitz, C A
• Publication Date: 1971-2

Media Info

• Serial:
  • ILLUMINATING ENGINEERING

Subject/Index Terms

• TRT Terms: Field tests; Luminaires; Maintenance; Street lighting
• Subject Areas: Highways; Maintenance and Preservation; Safety and Human Factors;

Filing Info

• Accession Number: 00221267
• Record Type: Publication
• Files: TRIS
• Created Date: May 16 1971 12:00AM