Multimodal Guidance for Land Navigation

Abstract : This report describes the third in a series of collaborative experiments between the U.S. Army Research Laboratory and TNO Human Factors (Soesterberg, The Netherlands). In each experiment, a personal tactile navigation (PTN) system for land navigation was compared with alternate land navigation systems in wooded terrain at Fort Benning, Georgia, during high workload conditions that included secondary tasks such as radio communications, target detection, and determination of location coordinates. This report briefly summarizes results of the first and second studies and describes in further detail the third experiment which assessed navigation and target detection performance when the PTN and a hand-held commercial global positioning system (GPS) device were used singly and together. Most important are findings relevant to how systems can be used most effectively when Soldiers have both. Results demonstrate the effectiveness and high Soldier appreciation of having both systems. This report also contains Soldier recommendations for how both systems can be improved and how best to use both systems when in operations.

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