Night Visibility, Bulletin 56, Publication 236.

Abstract

The 1950 revised American Standard Code for Safety Glazing Materials for Motor Vehicles establishes requirements for glazing materials installed within 'levels requisite for driving visibility.' A study to determine the extent of glazed areas necessary for driving visibility is reported upon. Data on current passenger cars are given showing the areas available for seeing by all but the tallest 2.5 percent and all but the shortest 2.5 percent of California licensed drivers. Visibility angles required for observance of traffic signals are also given. From the above data and information on human dimensions, a method is suggested for determining the levels requisite for driving visibility applicable to any automobile for various percentages of drivers. The dimensions and technique for checking windshields to establish a level that will include 85 percent of the drivers is given. This percentage was tentatively agreed upon as a practical value by the Engineering Committee of the American Association of Motor Vehicle Administrators in June 1951. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1952
Accession Number
ADA065037

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Contrast
  • Day
  • Eye Diseases
  • Flicker
  • Human Factors Engineering
  • Illumination
  • Light Sources
  • Motor Vehicles
  • Nerves
  • Optical Properties
  • Optics
  • Psychology
  • Surfaces
  • Three Dimensional
  • Vehicles
  • Vision Disorders
  • Visual Perception

Readers

  • Government and Public Administration Law.
  • Human-Computer Interaction (HCI).
  • Logistics and Supply Chain Management.