Ocular Indicators as Fatigue Detection Instruments for Indonesian Drivers

Puspasari, Maya Arlini; Iridiastadi, Hardianto; Sutalaksana, Iftikar Z.; Sjafruddin, Ade

doi:10.7232/iems.2019.18.4.748

Cited by 7 publications

(20 citation statements)

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“…According to Akerstedt et al (2010), blink duration is the most responsive parameter to sleepiness (fatigue) and increases during sleep deprivation conditions in field studies and driving simulators. The results of the research by Puspasari et al (2019) also state that the blink duration parameter is one of the best parameters in fatigue detection. Besides that, blink frequency is defined as the blink rate in a specific time window, usually 1 minute (Cori et al, 2019).…”

Section: Literature Reviewmentioning

confidence: 90%

“…Blink has been used in several studies to objectively measure fatigue. The research of Puspasari et al (2019) used ocular indicators, one of which was blink through an eye tracker to measure fatigue. The research involved a driving simulator in a laboratory that was made to resemble real conditions.…”

Section: Discussionmentioning

confidence: 99%

“…According to Xu et al (2018), eye tracking is the main approach to collecting evidence of driver fatigue. Eye tracker can evaluate driver fatigue based on the blink indicator in a nonintrusive system (Puspasari et al, 2019;Xu et al, 2018). The research by Xu et al (2018) involved 10 participants who were asked to drive a car simulator for 1-2 hours in monotonous conditions using an eye movement tracking device.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Blink duration has been shown to be the most consistent parameter in subjective and objective measurements of sleep-related driving disorders (Mulhall et al, 2020). The research by Puspasari et al (2019) also concluded that blink duration and microsleep (blink duration >500 ms) is the most sensitive parameter to detect fatigue. Meanwhile, the blink frequency is defined as the blink rate in a specific time window, usually 1 minute (Cori et al, 2019).…”

Section: Introduction 11 Backgroundmentioning

confidence: 99%

“…Eye tracker can be used to evaluate train driver fatigue, especially in monotonous conditions (Xu et al, 2018). The research by Puspasari et al (2019) also used an eye tracker to evaluate fatigue while driving a simulator in a laboratory. Driving simulators in laboratories are used due to time efficiency, minimal costs, and safety factors.…”

Section: Introduction 11 Backgroundmentioning

confidence: 99%

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The Effect of Split Sleep on Fatigue Based on the Ocular Indicator: A Train Simulator Study

Proceedings of the International Conference on Industrial Engineering and Operations Management

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Fatigue was identified as a contributing factor to accidents in the rail sector. Fatigue can be caused by a lack of quantity and poor quality of sleep due to split sleep. Split sleep is common in train operations because of the limited rest time. At that time, train drivers had to sleep, pray, contact family, and commute. This study aims to examine the effect of split sleep on driving fatigue. Fatigue was measured based on the blink duration and frequency through an eye tracker and subjective questionnaires, Karolinska Sleepiness Scale (KSS) and Visual Analogue Scale (VAS). Nine participants underwent two sleep conditions, namely split sleep and consolidated sleep. Split sleep divides sleep into two segments at 05.00-10.00 and 12.00-15.00. Meanwhile, consolidated sleep is carried out continuously at 05.00-13.00. Participants were asked to drive a train simulator for 2.5 hours in the laboratory after each sleep state was executed. From this study, it was concluded that there were significant differences in the conditions of split sleep and consolidated sleep. This is caused by increased fatigue based on the blink duration and frequency. However, the KSS and VAS data did not show any difference between the two sleep conditions. Therefore, split sleep can be carried out if needed by maintaining the quality and duration of sleep. Improving sleep quality and fulfilling adequate sleep duration (7-8 hours) is carried out as a mitigation strategy to reduce the effect of fatigue due to split sleep. In addition, comfortable lodging in train station can support improving the quality and fulfillment of sleep duration.

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Section: Literature Reviewmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%