The effects of mobile telephoning on driving performance
DOI: 10.1016/0001-4575(91)90008-s
archive: archived pipeline: cataloged verified
Get this paper ↗ (DOI — opens at the source; we link to it, we don't host it)
Summary
This study investigates the impact of mobile telephoning on driving performance across three distinct traffic conditions: light traffic on a quiet motorway, heavy traffic on a four-lane ring-road, and city traffic. Motivated by the rapid adoption of mobile phones and concerns regarding dual-task interference, the research aims to determine how telephoning affects driving effort and safety-critical parameters at strategic, tactical, and operational control levels. The experiment utilized twelve subjects unfamiliar with mobile phones, who drove an instrumented vehicle over three weeks. Half of the participants used handheld phones, while the other half used hands-free sets. Driving performance was measured using objective metrics, including steering wheel movements, lateral position, car-following coherence, and rearview mirror checks, alongside physiological indicators of mental workload such as heart rate and heart rate variability. The results indicate that telephoning significantly increases subjective effort and objective mental workload, evidenced by elevated heart rates and reduced heart rate variability. While basic operational control, such as lateral position stability on quiet motorways, remained largely unaffected or even improved due to an alerting effect, tactical performance was impaired. Specifically, telephoning caused a significant 600-millisecond delay in adapting speed to the vehicle ahead, increasing stopping distances by approximately 11.7 meters at 70 km/h. Although reaction times to brake lights were not statistically significant, they showed a slight increase. A critical finding was the difference between phone types: subjects using handheld phones exhibited violent steering wheel movements when manually dialing, whereas those using hands-free sets maintained better vehicle control. Additionally, subjects checked their rearview mirrors less frequently on busy roads, though this was attributed to a minimum attention strategy rather than the phone task itself. Performance on both driving and telephone tasks improved significantly over the three-week period due to practice effects, with no significant differences observed across age groups. The study concludes that mobile telephoning decreases traffic safety primarily by impairing tactical maneuvers, such as speed adaptation and situational awareness, rather than basic vehicle control. The manual operation of handheld phones poses a specific hazard due to attention diversion during dialing. Consequently, the authors recommend that authorities and manufacturers prioritize hands-free systems, preferably with voice-activated dialing, to minimize physical distraction. Drivers are advised to maintain larger following distances and moderate speeds when using mobile phones to compensate for delayed reactions. These findings provide empirical evidence that while the conversation itself may not severely disrupt automatic driving skills, the cognitive load and physical interaction with the device significantly compromise safety in complex traffic environments.
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.
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | OpenAlex-citations | — | — | 1 | 2026-06-18 |
| archive | success | unpaywall | — | — | 2 | 2026-06-25 |
| extract | success | pdftotext | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-26 |
| chunk | success | chunk | — | — | 1 | 2026-06-26 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-26 |
| enrich | failed | — | — | — | 4 | 2026-06-26 |
| promote | success | — | — | — | 1 | 2026-06-18 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-26 |
| verify | partial | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; 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).
- Empirical Findings: observational prevalence, behavioral performance data
- Theoretical Contribution: theory or model