Accession Number : AD0766778

Title :   Study of Optical Illusions During Visual Approaches.

Descriptive Note : Final rept.,

Corporate Author : BUNKER-RAMO CORP WESTLAKE VILLAGE CALIF ELECTRONIC SYSTEMS DIV

Personal Author(s) : Armstrong,G. ; Bertone,C. ; Kahn,O. ; Finley,D. ; Thompson,E.

Report Date : NOV 1972

Pagination or Media Count : 258

Abstract : The report concerns the study of optical hazards (illusions) during visual approaches. The study was conducted primarily to develop criteria which would help to minimize the probability of accidents at certain problem airports due to illusory factors. The investigation included the psychological factors leading to the misinterpretation of visual stimuli as well as the physical conditions which constitute a proper environment for optical illusions. The topographical features, ambient lighting, visibility restrictions, manmade structures/objects, and airport/runway characteristics were assigned weighted indexes for the mathematical modeling in order to determine sites which may possess visual approach hazards. The description of the human visual system and psychology of perception are contained in the appendix, and the mathematical modeling for probability of visual hazards (illusions) is described in the main body of the report. (Author)

Descriptors :   (*AVIATION ACCIDENTS, APPROACH), (*VISION, AVIATION ACCIDENTS), PILOTS, ILLUSIONS, PSYCHOPHYSIOLOGY, PERCEPTION, VISIBILITY, RUNWAYS, HUMAN FACTORS ENGINEERING

Subject Categories : Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE