The Effects of Shared Information on Pilot-Controller Situation Awareness And Re-Route Negotiation
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Summary
This study investigates how shared information between pilots and air traffic controllers (ATCs) influences situation awareness (SA) and negotiation behaviors during route amendments. Motivated by the FAA’s proposed expansion of datalink services, such as Controller-Pilot Data Link Communication (CPDLC) and Aviation Weather Information (AWIN), the research addresses a gap in understanding how digital information sharing affects collaborative decision-making. The authors first conducted a goal-directed task analysis to compare pilot and controller objectives, revealing that while high-level goals like safety overlap, lower-level goals often conflict: pilots prioritize efficiency (time/fuel), whereas controllers prioritize system-wide traffic flow and separation. To test these dynamics, the researchers conducted an exploratory simulator experiment involving six pilot-controller pairs. The study utilized a distributed, interactive simulation facility to create realistic en-route air traffic scenarios involving convective weather and moderate-to-high traffic density. The independent variable was the availability of shared traffic and weather information via datalink. In the "datalink disabled" condition, information was partitioned: pilots saw only weather data, and controllers saw only traffic data. In the "datalink enabled" condition, both parties received shared overlays of weather and traffic information. Situation awareness was measured using testable response probes, where appropriate action indicated awareness. Workload was assessed using the NASA Task Load Index, and radio communications were coded to analyze negotiation patterns. The results demonstrated that shared information significantly enhanced situation awareness for both parties. Pilots, who lacked traffic data in the non-datalinked condition, showed no awareness of traffic-related hazards; with shared data, they demonstrated awareness in 56% of cases. Controllers, who lacked weather data in the non-datalinked condition, were aware of only 50% of weather-related hazards; with the weather overlay, this increased to 94%. Crucially, all five observed loss-of-separation events occurred exclusively in the non-datalinked condition. Communication analysis revealed that shared information fostered more collaborative interactions, with controllers providing more proactive weather advisories and both parties exchanging voluntary suggestions for route amendments. Subjective ratings indicated that pilots and controllers found the shared weather information "very valuable," though controllers had mixed opinions regarding shared traffic data. The study concludes that sharing traffic and weather information via datalink improves individual and team situation awareness, leading to more collaborative negotiations and enhanced safety outcomes. Specifically, providing controllers with a weather overlay allows for better strategic planning and conflict avoidance, reducing reliance on reactive, time-critical maneuvers. The findings support the integration of shared information systems in the National Airspace System to mitigate competing interests and improve overall operational efficiency and safety.
Key finding
Sharing traffic and weather information via datalink improved situation awareness for both pilots and controllers, increased collaborative negotiation behaviors, and prevented loss-of-separation events that occurred when information was not shared.
Methodology
simulator
Sample size: 12
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via author_sweep_intake on 2026-05-28.
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | author_sweep | — | — | 2 | 2026-05-28 |
| archive | success | canonical_url | — | — | 1 | 2026-06-06 |
| extract | success | cached | — | — | 3 | 2026-06-10 |
| clean | success | clean | — | — | 1 | 2026-06-04 |
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| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-04 |
| enrich | success | — | — | — | 1 | 2026-05-28 |
| promote | success | — | — | — | 1 | 2026-06-04 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 2 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 15 | 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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