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Sleep and sleepiness in shift-working tram drivers.
Applied Ergonomics ( IF 3.1 ) Pub Date : 2020-06-16 , DOI: 10.1016/j.apergo.2020.103153
Jussi Onninen 1 , Tarja Hakola 2 , Sampsa Puttonen 2 , Asko Tolvanen 3 , Jussi Virkkala 4 , Mikael Sallinen 1
Affiliation  

Driver sleepiness contributes to traffic accidents. However, sleepiness in urban public transport remains an understudied subject. To fill this gap, we examined the sleepiness, sleep, and on-duty sleepiness countermeasures (SCMs) in 23 tram drivers working morning, day, and evening shifts for three weeks. Sleepiness was measured using Karolinska Sleepiness Scale (KSS). Nocturnal total sleep time (TST) was measured with wrist actigraphy. SCMs and naps were self-reported with a smartphone application. Caffeine and napping were considered effective SCMs. Severe sleepiness (KSS ≥ 7) was observed in 22% of shifts with no differences between shift types. Rest breaks were associated with slight reductions in sleepiness. TST between days off averaged 7 h but was 1 h 33 min and 38 min shorter prior to morning and day shifts, respectively. The use of effective SCMs showed little variance between shift types. These results highlight the need for fatigue management in non-night-working tram drivers.



中文翻译:

轮班工作的电车司机的睡眠和困倦。

驾驶员的困倦导致交通事故。然而,城市公共交通的困倦仍然是一个尚未被研究的话题。为了填补这一空白,我们检查了23名上午,白天和晚上轮班工作的有轨电车司机在三个星期内的嗜睡,睡眠和值班嗜睡对策(SCM)。使用Karolinska嗜睡量表(KSS)测量嗜睡程度。夜间总睡眠时间(TST)通过腕部活动记录仪测量。单片机和小睡可以通过智能手机应用程序自行报告。咖啡因和午睡被认为是有效的SCM。在22%的班次中观察到严重嗜睡(KSS≥7),班次类型之间无差异。休息休息与嗜睡的轻微减轻有关。休息日之间的TST平均为7小时,但分别比上午和日间班短1小时33分钟和38分钟。有效SCM的使用显示出不同班次类型之间的差异很小。这些结果突显了非夜间工作的电车驾驶员需要进行疲劳管理。

更新日期:2020-06-16
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