In-Vehicle Display Icons and Other Information Elements: Conduct Preliminary Assessment of Visual Symbols
archive: archived pipeline: cataloged verified
Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)
Summary
This report, produced by the Federal Highway Administration, addresses the urgent need for human factors design guidelines for In-Vehicle Information Systems (IVIS), particularly regarding Advanced Traveler Information Systems (ATIS). As IVIS devices rapidly entered the automotive market, there was a lack of standardized research on how to present visual, auditory, and tactile information without causing driver overload, distraction, or confusion. The study aims to establish credible procedures and heuristics for selecting display modalities and defining message characteristics to guide the design of in-vehicle icons and information elements. The methodology involved a seven-step analytical process. First, researchers generated and refined a list of 273 candidate IVIS messages. Second, they conducted a literature review on sensory modality to develop a "sensory modality design tool." Third, they evaluated the messages using this tool to determine the appropriate sensory channel (visual, auditory, or tactile). Fourth, messages were defined by four contextual characteristics (urgency, criticality, link to driving task, and independence) and nine Information Processing Elements (IPEs), such as alert, identify, and decide. Finally, cluster analysis was used to group messages into 12 clusters, which were further organized into four general design categories to identify specific design tradeoffs and requirements. The findings established clear principles for modality selection. Visual displays are recommended for complex information that is not immediately urgent and may require later reference. Auditory displays are best for simple, urgent, or critical alerts requiring immediate attention. A combination of visual and auditory modes is advised for complex yet urgent information. Tactile modalities were deemed unsuitable for the identified IVIS messages. The study also categorized messages into four groups with distinct design implications: Group I (high-priority, driving-linked) requires highly salient, compelling icons placed near the driver’s center of attention; Group II (medium-priority, dependent) benefits from subtle alerts and integrated object displays or maps; Group III (non-driving independent) should be placed outside the driver’s focus of attention to avoid distraction; and Group IV (low-priority) should prioritize interpretation and afford action without demanding immediate attention. The significance of this work lies in its shift away from classifying messages solely by ITS technology, which the authors found insufficient for effective design. Instead, the report demonstrates that understanding the driving context and the specific information processing demands placed on the driver is critical for successful guideline development. By linking message characteristics to perceptual, memory, and motor control limits, the study provides a solid analytical foundation for future design tools. It concludes that while tactile displays have limited utility in this context, the integration of visual and auditory guidelines based on urgency and complexity is essential for maintaining driver safety and preventing information overload in advanced vehicle systems.
Key finding
Visual modalities are recommended for complex, non-urgent information, auditory modalities for simple, urgent alerts, and tactile modalities were found unsuitable for the analyzed in-vehicle information messages.
Methodology
review
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 bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| 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 | partial | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified_with_issues.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
Information type
What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).
- Applied Guidance: design guidelines
- Theoretical Contribution: conceptual framework