Key Cognitive Issues in the Design of Electronic Displays of Instrument Approach Procedure Charts
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Summary
This report addresses the cognitive challenges inherent in designing Electronic Instrument Approach Procedure (EIAP) displays for glass cockpit environments. The research was motivated by the high accident rate during approach and landing phases, often linked to the complexity of traditional paper charts. While electronic displays offer advantages like decluttering and integration with other systems, they risk introducing new cognitive burdens, such as increased workload from display management. The study aims to identify key cognitive issues and provide design guidelines to ensure EIAPs are safe and efficient for pilots. The methodology involved a comprehensive review of cognitive psychology literature, specifically focusing on human information processing, memory, perception, and attention. The authors conducted a cognitive task analysis of the instrument approach procedure to determine the specific mental skills required, such as rapid information extraction, spatial orientation, and decision-making under time pressure. This analysis was combined with pilot interviews and existing aviation human factors research. The report synthesizes these findings into design principles based on established theories, including Wickens’ Information Processing Model and Rasmussen’s Skill-, Rule-, and Knowledge-Based Model. Key findings highlight critical constraints in pilot cognition. Working memory capacity is limited, requiring EIAP designs to minimize the amount of information pilots must retain and to facilitate "chunking" of data. Interruptions, particularly from Air Traffic Control, degrade working memory; thus, designs must allow for quick relocation of lost information and avoid interrupting pilot activities. Visual search efficiency is improved by consistent information placement, distinct feature coding, and the elimination of irrelevant clutter. Pattern recognition is enhanced by providing clear features and contextual cues. Additionally, the report emphasizes the importance of matching display symbols to pilots' mental models and training experiences to aid retrieval from long-term memory. Specific guidelines address mental rotation, suggesting upright symbol orientation to reduce cognitive load, and warn against conflicting coding schemes that may interfere with established aviation conventions. The significance of this work lies in its provision of a cognitive framework for EIAP design, bridging the gap between theoretical psychology and practical aviation engineering. By adhering to these guidelines, designers can create displays that align with human information processing limits, thereby reducing pilot workload and error rates. The report concludes that careful attention to memory, perception, and attention issues is essential for the safe integration of electronic charts into the cockpit, ensuring that technological advancements do not compromise operational safety.
Key finding
Electronic instrument approach procedure displays should reduce working memory load, locate information consistently, and use redundant coding to facilitate rapid visual search and pattern recognition.
Methodology
review
Provenance
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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- Applied Guidance: design guidelines