GLARE AND DRIVER VISION

A FIELD STUDY WAS MADE OF THE GLARE FOUND IN VEHICLES DURING DAYLIGHT DRIVING CONDITIONS. ALSO A STUDY WAS MADE IN THE LABORATORY OF THE EFFECTS OF SUCH GLARE INTENSITIES ON VISION. GLARE WAS FOUND TO BE PRESENT ON AUTOMOBILES IN A VARIETY OF TYPES AND INTENSITIES, A FEW OF WHICH SEEMED TO PRESENT POTENTIALLY SERIOUS PROBLEMS FOR DRIVER VISION. THE WORST OF THESE WERE THE DIRECT REFLECTIONS OF THE SUN ON THE VEHICLE'S HOOD; SECONDARILY, WINDSHIELD WIPER ASSEMBLIES, CHROME STRIPS AT THE BASE OF THE WINDSHIELD, ETC., ALSO PROVED TO BE OF CONCERN. HERE IT SEEMS REASONABLE TO REQUIRE THAT SUCH GLARE BE ELIMINATED OR MODIFIED INSOFAR AS POSSIBLE. LESSER SOURCES OF GLARE MAY ALSO OCCASIONALLY PROVE ANNOYING OR DISTRACTING. IN THE LABORATORY RESEARCH, THE CONCLUSIONS CORROBORATED THOSE FROM THE FIELD RESEARCH, I.E. THE VERY BRIGHTEST GLARES, THOSE MOST SIMILIAR TO DIRECT SUN REFLECTION, DO HAVE THE GREATEST POTENTIAL FOR INTERFERING WITH DRIVER VISION AND SHOULD THEREFORE BE ELIMINATED. /SRIS/

• Supplemental Notes:
  • 91 Pp, Tabs, FIGS, REFS
• Corporate Authors:

  Harvard University

  Guggenheim Center for Aerospace Health and Safety
  Boston, MA  United States  02115
• Authors:
  • STOUDT, H W
  • Crowley, T J
  • Gruber, B
  • Morandi, A J
• Publication Date: 1970-1

Subject/Index Terms

• TRT Terms: Daylight; Drivers; Driving; Glare; Hoods; Vision; Windshield wipers; Windshields
• Uncontrolled Terms: Driving conditions; Intensity
• Old TRIS Terms: Driver vision; Wipers
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00221280
• Record Type: Publication
• Source Agency: Nat Safety Council Safety Res Info Serv
• Files: TRIS
• Created Date: Jul 12 1971 12:00AM