Abstract
An experiment was carried out to compare an in-service paper map versus a prototype computer map for Armoured Fighting Vehicle (AFV) navigation. Representative subjects commanded a test vehicle over predetermined courses using alternate media. Navigation errors were recorded and categorised as the primary performance measure. Other data gathered included direct observation and user questionnaires. Significantly fewer major errors were made using the computer map. Subjects reported high confidence in their position using the computer map and preferred it for map marking. The enhanced navigational performance achieved using the computer map is attributed to the added information of current location and orientation. Overlay of this information on a scrollable colour map afforded the commander the opportunity to interact more freely with other crewstation controls. It is concluded that iconic overlay of information provides an appropriate support to the task of AFV navigation but suggests that the level of information provided should be tailored to fit the scenario.
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