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THE EFFECTS OF MAP SCALE ON POSITION LOCATION.
GEORGE WASHINGTON UNIV ALEXANDRIA VA HUMAN RESOURCES RESEARCH OFFICE
This study was conducted to determine the relationship between field position location and map scale. Two map scales were used--125,000 and 1250,000. Twelve subjects were required to mark their position on a map at each of 12 terrain positions. The task was then repeated, utilizing the other scale map. The error in position location was approximately 10 times greater with the 1250,000 scale map than with the 125,000 scale map. However, a significant scale-by-position interaction was found. It was concluded that maps of 1100,000 or 1125,000 scale would best meet the tactical target area requirements of Army aviators, and that the 1250,000 scale map, with certain format changes, would provide the information necessary for en route tactical navigation over moderate or long distances. Author
Rept. on Task LOWENTRY.
DA44 188 AR02