Traffic and Flight Guidance Depiction on a Synthetic Vision System Display: The Effects of Clutter on Performance and Visual Attention Allocation
DOI: 10.1177/154193120404800147
archive: archived pipeline: cataloged
Get this paper ↗ (DOI — opens at the source; we link to it, we don't host it)
Summary
This study investigates the impact of display clutter and spatial dispersion on pilot performance and visual attention allocation when using Synthetic Vision System (SVS) displays. The research addresses the trade-off between compact, cluttered displays that minimize scanning effort and spatially dispersed layouts that reduce visual clutter but challenge attention allocation. Specifically, the authors examined how the presence of a "highway-in-the-sky" tunnel and an instrument panel overlay affected routine flight tracking, traffic detection, and responses to off-normal events. Fourteen instrument-rated pilots participated in a 2x2 factorial experiment conducted in a high-fidelity flight simulator. The two factors were the presence of a 3D flightpath tunnel versus datalink guidance, and the presence of an instrument panel overlay on the SVS display versus a separate instrument panel. Pilots flew eight scenarios through a terrain-rich environment, with forward traffic depicted on the SVS display in all conditions. Visual attention was measured using eye-tracking to determine percent dwell time (PDT) on various areas of interest, including the SVS, navigation display, instrument panel, and the outside world. Results indicated that the tunnel significantly improved flight path tracking, reducing vertical deviation by 25 meters and lateral deviation by 20 meters compared to datalink guidance. The tunnel also reduced the time required to detect traffic on the SVS display from 16 to 11 seconds. Conversely, overlaying the instrument panel on the SVS display provided no tracking benefits and imposed a 6-second cost to traffic detection due to clutter. While the tunnel improved routine performance, it slightly disrupted the detection of unexpected "rogue" aircraft visible only in the outside world; 83% of pilots in the non-tunnel condition responded appropriately, compared to 50% in the tunnel condition. Additionally, 5 out of 12 pilots missed a runway offset event when the tunnel was present. Visual scanning data revealed that pilots focused on the SVS display over half the time, with outside-world scanning remaining low (around 9% in visual meteorological conditions), suggesting a "cognitive tunneling" effect where the compelling SVS display draws attention away from external hazards. The findings suggest that while the SVS tunnel enhances routine flight control and traffic surveillance, it may induce attentional tunneling that compromises the detection of off-normal events requiring outside-world scanning. The instrument panel overlay was found to be detrimental to traffic detection due to clutter without offering compensatory benefits. These results imply that designers of advanced avionics must carefully balance the integration of guidance and traffic information on SVS displays to avoid inhibiting the processing of critical external visual cues.
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 | — | — | 15 | 2026-08-22 |
| extract | success | cached | — | — | 3 | 2026-08-23 |
| clean | success | clean | — | — | 1 | 2026-06-04 |
| chunk | success | chunk | — | — | 1 | 2026-06-04 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-04 |
| enrich | success | crossref | — | — | 2 | 2026-06-04 |
| promote | success | — | — | — | 1 | 2026-06-04 |
| summarize | success | llm | qwen3.8-27b-gittensor | summ-v5 | 2 | 2026-08-23 |
| tag | success | vector_similarity | — | — | 15 | 2026-06-11 |
Summary generated by qwen3.8-27b-gittensor on 2026-08-23; verification: pending re-verification.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.