A CASE STUDY OF FOG DISPERSAL

EXPERIMENTS ARE DESCRIBED WHICH WERE CONDUCTED TO ILLUSTRATE HOW INFORMATION ACQUISITION BY A DRIVER IN A FOG CAN BE IMPROVED BY MODIFYING THE FOG RATHER THAN THE OBJECTS THAT THE DRIVER MUST OBSERVE. THE EXPERIMENTS WERE PERFORMED AT AN AIRPORT AS PART OF A STUDY AIMED AT IMPROVING LANDING CONDITIONS FOR AIRCRAFT. THE EQUATION FOR VISIBILITY IN A FOG IS PRESENTED IN CONJUNCTION WITH FACE DIAGRAMS ILLUSTRATING THE MEANS BY WHICH VISIBILITY CAN BE IMPROVED: THE AVERAGE RADIUS IN THE APPROXIMATION CAN BE INCREASED, OR LIQUID WATER CONTENT CAN BE DECREASED. FINELY DIVIDED SALT PARTICLES ARE DISPERSED INTO THE FOG CAN ACCOMPLISH THIS. DEMOSTRATION WAS MADE OF THIS IN AN EXPERIMENT PERFORMED ON OCTOBER 16, 1968 AT ELMIRA, NEW YORK. THESE EXPERIMENTS DEMONSTRATE THAT THE FOG MODIFICATION DEMOSTRATE THAT THE FOG MODIFICATION TECHNIQUES BASED ON SEEDING WITH CAREFULLY SIZED HYGROSCOPIC MATERIALS HAVE DEFINITE PROMISE FOR HIGHWAY APPLICATION.

• Supplemental Notes:
  • pp 3-6, 5 FIG
• Corporate Authors:

  Itte, University of California, Berkeley

  Proceedings, 2nd Annual Symposium
  ,   United States 
• Authors:
  • Pilier, R J
  • Kocmond, W C
• Publication Date: 1969-12

Subject/Index Terms

• TRT Terms: Data collection; Drivers; Fog; Fog dispersal; Hygroscopic coefficient; Particles; Sodium chloride; Sodium chloride; Visibility
• Old TRIS Terms: Dispersion
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00220854
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM