Visual and Cognitive Demands of Using In-Vehicle Information Systems
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Summary
This study, commissioned by the AAA Foundation for Traffic Safety and conducted by the University of Utah, investigates the visual and cognitive demands placed on drivers by in-vehicle infotainment systems (IVIS). The research was motivated by the rapid expansion of vehicle-based technology, which allows motorists to perform non-driving tasks such as texting, browsing social media, and programming navigation. Despite the prevalence of these features, there was limited understanding of how high-demand interactions affect driver performance. The study aimed to answer three specific questions: which tasks are most demanding, how different interaction modes (voice, touchscreen, buttons) affect demand, and how these demands vary across different vehicle makes and models. The methodology involved testing 30 vehicles from various manufacturers (2017 model year) using 120 licensed drivers aged 21 to 36 with clean driving histories. Participants performed four specific tasks—calling/dialing, text messaging, tuning the radio, and programming navigation—using available interaction modes including voice commands, center stack displays, and center console controls. Testing occurred on a 2-mile residential road with a 25 mph speed limit and low traffic. Researchers utilized objective measures, including the Detection Response Task (DRT) per ISO 17488, and subjective measures via the NASA Task Load Index. Drivers also completed baseline and high-demand benchmark trials to contextualize the results. The findings revealed that all tested IVIS interactions produced very high overall demand, exceeding established high-demand benchmarks. Navigation was identified as the most demanding task overall, while text messaging generated significantly higher demand than radio tuning or calling. Visually, radio tuning and navigation required more eyes-off-road time than calling or texting. Regarding interaction modes, center stack displays were less demanding than voice commands, which were less demanding than center console controls. However, voice commands, while reducing visual demand, resulted in longer interaction times. Crucially, the study found significant variability across vehicles: 23 of the 30 tested vehicles generated high or very high demand, seven generated moderate demand, and none yielded low demand. The significance of these results lies in the conclusion that keeping hands on the wheel and eyes on the road does not equate to focused driving, as cognitive demand remains high. The authors recommend that motorists program navigation before driving and avoid texting entirely. For automakers, the study suggests blocking access to navigation programming and texting while driving and redesigning systems to minimize demand to levels comparable to listening to the radio. The findings provide a framework for consumers to evaluate vehicle safety features and for industry leaders to prioritize design improvements that reduce the most significant sources of driver distraction.
Key finding
Navigation programming was the most overall demanding IVIS task, and 23 of 30 model-year 2017 vehicles tested generated high or very high overall driver demand from infotainment interactions, with none producing low demand.
Methodology
on_road
Sample size: n=120 (24 drivers per vehicle, 30 vehicles)
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_aaa_foundation on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | author_sweep | — | — | 3 | 2026-05-28 |
| 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 | 2 | 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
- Empirical Findings: observational prevalence
- Methodological Resource: measurement protocol