Accession Number : AD0288530

Title :   INVESTIGATIONS INTO FACTORS AFFECTING CONTROL ACTIVATION. VI. SUPPLEMENTAL STUDY OF TOGGLE SWITCH NUMBER AND DENSITY

Corporate Author : APPLIED PSYCHOLOGICAL SERVICES VILLANOVA PA

Personal Author(s) : LANTERMAN,RICHARD S. ; SCHULTZ,DOUGLAS G.

Report Date : 28 SEP 1962

Pagination or Media Count : 1

Abstract : A study is described of the effects of varying the number and density of toggle switches on control activation time. The range of each of these factors was extended beyond that used in an earlier study in order to explore reasonable limits. It was found again that the time required to activate a series of toggle switches varied directly and linearly with the number of switches involved. With a small number of controls, the relationship between activation time and control density was found to be roughly linear, but, as the number of controls increased and the between switch distance became large, a negatively accelerated curvilinear relationship became more apparent. (Author)

Descriptors :   *HUMAN FACTORS ENGINEERING, *TOGGLE SWITCHES, COCKPITS, CONTROL, CONTROL PANELS, DISPLAY SYSTEMS, EFFECTIVENESS, MATHEMATICAL ANALYSIS, REACTION (PSYCHOLOGY), REFLEXES

Distribution Statement : APPROVED FOR PUBLIC RELEASE