PREDICTION OF NIGHTTIME DRIVING VISIBILITY FROM LABORATORY
The application of laboratory threshold visibility data to the subject of driving visibility with heat absorbing glass has been reviewed in an attempt to resolve excessive differences between calculated predictions and road test observations. New calculations are described that yield predicted losses of visibility distance due to the use of heat absorbing glass rather than regular glass in automobile windshields. The predicted losses agree satisfactorily with the observed losses for road tests which average proximately 3%. The new calculations have made use of a revised visual exposure interval of 1% sec corresponding with five visual fixational pauses per second and a new simulation model that assumes that the target-to-background contast increases with reduced headlamp-to-target distance.
- Find a library where document is available. Order URL: http://worldcat.org/issn/1559128X
- Research completed by Libbey-Owens-Ford Company Technical Center and Massachusetts University, Amherst, Astronomy Research Facility.
Optical Society of America, Incorporated2010 Massachusetts Avenue, NW
Washington, DC United States 20036
- Dunipace, D W
- Strong, J
- Huizinga, M
- Publication Date: 1974-11
- Features: Figures; References; Tables;
- Pagination: 12 p.
- TRT Terms: Glass; Laboratory tests; Night vision; Visibility
- Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors;
- Accession Number: 00099006
- Record Type: Publication
- Source Agency: Highway Safety Research Institute
- Files: TRIS
- Created Date: Nov 5 1975 12:00AM