Reducing control selection errors.
Burgess-Limerick-R; Krupenia-V; Zupanc-C; Wallis-G; Steiner-L
HFESA 2009, Proceedings of the 45th Annual Human Factors and Ergonomics Society of Australia Conference 2009, November 22-25, 2009, Melbourne, VIC, Australia. Sydney, Australia: Human Factors and Ergonomics Society of Australia, Inc., 2009 Nov; :27-36
Selecting the incorrect control during the operation of equipment causes serious injuries. Shape coding and the layout of dual control banks are two aspects of control design which require further examination. The aims of this research were: (i) to determine whether arbitrary shape coding is likely to be effective in reducing selection error rates; and (ii) to determine whether any advantages exist for mirror or place layouts for dual control situations. Two experiments involving 84 participants were conducted in a virtual environment. No benefits of arbitrary shape coding were evident while control location remained constant. When control location was altered, shape coding did provide a significant reduction in selection error rate. No differences between mirror or place arrangements were detected. Evidence exists to suggest that beneficial consequences of arbitrary shape coding exist in situations in which the relationship between shape and function is constant, but the location of the controls is altered: either by changing to a different workstation; or a different machine. Consequently it is important to ensure that the relationship between shape and function is standardised, and that a means is provided to prevent shaped handles being placed on the incorrect lever. Whether arbitrary shape coding has benefits when control layout remains constant is unknown. Further research is required to determine whether mirror or place arrangements should be used where dual controls banks are provided for operation by left and right hands.
Mining-industry; Human-factors-engineering; Mining-equipment; Equipment-operators; Machine-operation; Machine-operators; Injury-prevention; Control-methods; Control-technology; Equipment-design; Simulation-methods; Manual-controls; Optical-aids
HFESA 2009, Proceedings of the 45th Annual Human Factors and Ergonomics Society of Australia Conference 2009, November 22-25, 2009, Melbourne, VIC, Australia