Abstract
The expected air traffic growth will introduce new tasks and automation technologies. As a result, the amount of mostly visual cockpit information will increase significantly, leading to more interruptions and risk of data overload. One promising means of addressing this challenge is through the use of multimodal interfaces which distribute information across sensory channels. To inform the design of such interfaces, a meta-analysis was conducted on the effectiveness and performance effects of auditory versus tactile interruption signals. From the 23 studies, ratio scores were computed to compare performance between the two modalities. The impact of 6 moderator variables was also examined. Overall, this analysis shows faster responses to tactile interruptions. However, more complex and very urgent interruption signals are better presented via the auditory modality. The findings add to our knowledge base in multimodal information processing and can inform modality choices in display design for complex data-rich domains.
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