Sleepiness of Occupational Drivers
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Summary
This review article addresses the critical issue of sleepiness among occupational drivers, identifying it as a primary cause of fatal crashes and highway accidents. The research is motivated by the European Union’s goal to reduce road deaths by half by 2010 and the projected 50% increase in professional traffic. While fatigue has long been associated with accident risk, earlier studies often failed to distinguish between general fatigue and specific sleepiness. This paper synthesizes epidemiological data from the 1990s onward to differentiate behavioral, pathological, and iatrogenic causes of sleepiness in professional drivers, aiming to identify strategies for improving road safety. The author reviews multiple studies investigating sleep hygiene, work schedules, and sleep disorders. Behavioral factors were examined through surveys of automobile and truck drivers, including a study of 2,196 drivers at a freeway tollbooth and another of 227 truck drivers. These studies assessed sleep duration, sleep debt, and the impact of shifting sleep schedules between work and rest periods. Pathological causes were evaluated using case-control studies and polysomnography data, focusing on obstructive sleep apnea syndrome (OSAS) and sleep-disordered breathing. For instance, Teran-Santos compared 102 accident-involved drivers with 152 controls, while Stoohs et al. analyzed sleep recordings and accident records of 90 long-haul truck drivers. Additionally, the review considers the impact of drugs affecting the central nervous system, such as narcotic analgesics and antihistamines. The findings indicate that sleepiness, sleep restriction, and nocturnal driving contribute to approximately 20% of traffic accidents. Behavioral studies revealed that 50% of drivers reduced their sleep duration before long-distance journeys, with significant sleep debts observed in a subset of drivers. Risk factors for sleep debt included young age, night driving, and weekend sleep patterns. Pathological studies demonstrated a strong link between OSAS and accident risk; drivers with an apnea-hypopnea index (AHI) of 10 or higher had a 6.3-fold increased risk of accidents, while those with severe OSAS (AHI > 30) showed even higher risks. Truck drivers with sleep-disordered breathing had a two-fold higher accident rate per mile. Furthermore, the use of sedating drugs was associated with increased accident risk. However, treatment with nasal Continuous Positive Airway Pressure (CPAP) significantly reduced accident risks for OSAS patients, offering a cost-effective solution that could save billions in collision costs and hundreds of lives annually. The significance of this work lies in its call for systematic investigation of sleep disorders among occupational drivers. The author concludes that chronic daytime sleepiness is underdiagnosed, particularly in sedentary male populations. To improve road safety, the paper advocates for integrating sleep hygiene education into driver training, regulating work schedules to account for cumulative sleep loss, and promoting sleep medicine. While European legislation regulates working hours, it does not address weekend sleep behaviors, highlighting the need for broader health interventions and better diagnosis of conditions like OSAS to mitigate the substantial risks posed by sleepy drivers.
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 | 2026-06-20 |
| archive | success | unpaywall | — | — | 2 | 2026-06-26 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-20 |
| chunk | success | chunk | — | — | 1 | 2026-06-20 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-20 |
| promote | success | — | — | — | 1 | 2026-06-20 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-20 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
- drowsiness
- truck driver fatigue
- shift work driving
- sleep deprivation
- prescription meds
- medical conditions
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: physiological data