DETECTION DISTANCE IN DAYLIGHT OF ROOF-MOUNTED EMERGENCY VEHICLE LIGHTS

The distance threshold for visibility in daylight was determined for four flashing incandescent signal systems and for two types of gas discharge tube arrays. The distance threshold was found to be a function of the physical construction of lamp housings and the flash pattern as well as of effective intensity. Certain combinations of internal reflections, glare, and complex flash patterns were found to reduce the overall distance threshold.

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  • Corporate Authors:

    National Safety Council

    425 North Michigan Avenue
    Chicago, IL  USA  60611
  • Authors:
    • Muhler, W
    • Berkhout, J
  • Publication Date: 1976-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00156326
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 31 1977 12:00AM