The self-reported causes of sleepiness in shift-working tram and truck drivers

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http://hdl.handle.net/10138/337461

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Onninen , J , Pylkkonen , M , Hakola , T , Puttonen , S , Virkkala , J , Tolvanen , A & Sallinen , M 2021 , ' The self-reported causes of sleepiness in shift-working tram and truck drivers ' , Transportation Research. Part F: Traffic Psychology and Behaviour , vol. 78 , pp. 153-163 . https://doi.org/10.1016/j.trf.2021.02.004

Title: The self-reported causes of sleepiness in shift-working tram and truck drivers
Author: Onninen, J; Pylkkonen, M; Hakola, T; Puttonen, S; Virkkala, J; Tolvanen, A; Sallinen, M
Contributor organization: Kliinisen neurofysiologian yksikkö
HUS Neurocenter
Date: 2021-04
Language: eng
Number of pages: 11
Belongs to series: Transportation Research. Part F: Traffic Psychology and Behaviour
ISSN: 1369-8478
DOI: https://doi.org/10.1016/j.trf.2021.02.004
URI: http://hdl.handle.net/10138/337461
Abstract: Identifying the causes of sleepiness in various safety-critical work environments is neces-sary for implementing more efficient fatigue management strategies. In transportation, little is known about drivers' own perceptions of these causes. Therefore, we instructed shift-working tram (n = 23) and long-haul truck drivers (n = 52) to report at the end of their shifts what made them sleepy if they felt so. These self-reports, measured on-duty sleepiness, and sleep amounts were recorded on every shift over a period of 2-3 weeks per driver. The causes of sleepiness were queried with smartphone applications and sleep logs. Sleepiness was measured with the Karolinska Sleepiness Scale (KSS) and sleep with wrist-worn actigraphs. Data were analyzed using generalized estimating equations. Sleep loss and insufficient rest breaks were commonly reported as causing sleepiness among the tram drivers, whereas time of day and sleep loss were the leading causes among the truck drivers. Other causes, such as traffic or cabin conditions, were not frequently men-tioned. During morning, day, and evening shifts, the truck drivers were less likely to report insufficient rest breaks as causing sleepiness than the tram drivers. Similarly, during morn-ing shifts, the truck drivers were less likely to attribute their sleepiness to sleep loss. In shifts with drives reporting severe sleepiness (KSS > 7 at least once, 18-21% of shifts), sleep loss was significantly reported as causing sleepiness among both groups. Reporting insuf-ficient rest breaks was associated with severe sleepiness among the tram drivers, whereas time of day showed the same among the truck drivers. The results highlight the need for addressing sleep-related fatigue in transportation and provide directions for future research with regard to secondary causes of sleepiness . (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Subject: Perceived fatigue
Transportation
Alertness
DRIVING PERFORMANCE
OBJECTIVE MEASURES
ROAD ENVIRONMENT
FATIGUE
TRANSPORT
RISK
COUNTERMEASURE
MANAGEMENT
ALERTNESS
EXPOSURE
515 Psychology
3142 Public health care science, environmental and occupational health
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: publishedVersion


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