• Hardianto Iridiastadi Institut Teknologi Bandung
  • Annas Fatkhurrohman Institut Teknologi Bandung
  • Ida Ayu Putu Mahadewi Institut Teknologi Bandung


One of major contributing factor in many motor vehicle accident is sleepiness. Sleepiness is a complex multi-dimensional phenomenon hence it is unlikely to be appropriately assessed by one single indicator of sleepiness or test. The purpose of the present study is to investigate if a combination indicators of sleepiness can be used as a fit-for-duty-test that is capable of assessing if a driver is fit to drive. There were two devices used in this study, namely PVT and B-ORS. Both devices would be validated against subjective measures of sleepiness. Twelve participants (M ± SD; 35.6 ± 3.4 years) were asked to drive a car from Bandung to Bekasi (110 kilometers) and return to Bandung in the afternoon. During the experiment, subjects were recorded by video camera and reported KSS value every 20 minutes. Subjects also performed the 5 min Psychomotor Vigilance Task (PVT) 6 times while they stopped driving. Each parameter’s value were tested using nonparametric or distribution-free procedures. The main findings of this study were fitness-for-duty test and real time monitoring may be used as driver’s sleepiness detectors and both methods, i.e. PVT and B-ORS, significantly correlate with self-reported sleepiness’s score.


Ahlstrom, C., Fors, C., Anund, A., and Hallvig, D., (2015), “Video-based observer rated sleepiness versus self-reported subjective sleepiness in real road driving” Biol Psychol 101, Vol. 7(38), pp. 18-23.

Ahlstrom, C., Nyström, M., Holmqvist, K., Fors, C., Sandberg, D., Anund, A., Kecklund, G., Åkerstedt, T. (2013). Fit-for-duty test for estimation of drivers’ sleepiness level: Eye movements improve the sleep/wake predictor. Transportation Research Part C: Emerging Technologies, Vol. 26, pp. 20–32.

Anund, A., Fors, C., and Hallvig, D., (2013). “Observer Rated Sleepiness and Real Road Driving: An Explorative Study” PLoS ONE, Vol. 8(5), pp. 1-8.

Baker, A., Ferguson, S.A., and Dawson, D., (2002), “Fitness for Duty: Fatigue, Drugs and Alcohol, Mining and Quarrying” Occupational Health and Safety Committee, University of South Australia.

Balkin, T., Thome, D., Sing, H., Thomas, M., Redmond, D., Wesensten, N., Williams, J., Hall, S., and Belenky, G., (2000), Effects of Sleep Schedules on Commercial Motor Vehicle Driver Performance. Washington, DC: Federal Motor Carrier Safety Administration, USDOT.

Basner, M. and Rubinstein, J., (2011), “Fitness for duty: a 3-minute version of the Psychomotor Vigilance Test predicts fatigue-related declines in luggage screening performance” J. Occup. Environ. Med, Vol. 53(10), pp. 1146-1154.

Baulk, S.D., Fletcher, A., Kandelaars, K.J., Dawson, D., and Roach, G.D., (2009), “A field study of sleep and fatigue in a regular rotating 12-h shift system” Applied Ergonomics, Vol. 40(4), pp. 694-698.

Belz, S.M., Robinson, G.S., and Casali, J.G., (2004), “Temporal Separation and Self-Rating of Alertness as Indicators of Driver Fatigue in Commercial Motor Vehicle Operators” Human Factors: The Journal of the Human Factors and Ergonomics Society, Vol. 46(1), pp. 154-169.

Blatter, K., Graw, P., Münch, M., Knoblauch, V., Wirz-Justice, A., & Cajochen, C. (2006). Gender and age differences in psychomotor vigilance performance under differential sleep pressure conditions. Behavioural Brain Research, Vol. 168(2), pp. 312–317.

Dawson, D., Searle, A.K., and Peterson, J.L., (2014), “Look before you (s)leep: Evaluating the use of fatigue detection technologies within a fatigue risk management system for the road transport industry” Sleep Medicine Reviews, Vol. 18, pp. 141-152.

Deboer, T. (2018). Sleep homeostasis and the circadian clock: Do the circadian pacemaker and the sleep homeostat influence each other’s functioning? Neurobiology of Sleep and Circadian Rhythms, Vol. 5, pp. 68–77.

Dinges, D.F. and Mallis, M.M., (1998), “Managing fatigue by drowsiness detection: can technological promises be realised? In: Hartley LR, editor” Managing fatigue in transportation: proceedings of the third international conference on fatigue and transportation. Oxford: Elsevier.

Dinges, D.F., Pack, F., Williams, K., Gillen, K.A., Powell, J.W., and Ott, G.E., (1997), “Cumulative sleepiness, mood disturbance, and psychomotor vigilance performance decrements during a week of sleep restricted to 4e5 hours per night” Sleep, Vol. 20, pp. 267-77.

Dorrian, J., Roach, G.D., Fletcher, A., and Dawson, D., (2007), “Simulated train driving: Fatigue, self-awareness and cognitive disengagement” Applied Ergonomics, Vol. 38(2), pp. 155-166.

Hanowski, R.J., Wierwille, W.W., and Dingus, T.A., (2003), “An on-road study to investigate fatigue in local/short haul trucking” Accident Analysis & Prevention, Vol. 35(2), pp. 153-160.

Gimeno, P. T., Cerezuela, G. P., & Montanes, M. C. (2006). On the concept and measurement of driver drowsiness, fatigue and inattention: implications for countermeasures. International Journal of Vehicle Design, Vol. 42(12), pp. 67.

Khitrov, M.Y., Laxminarayan, S., Thorsley, D., Ramakrishnan, S., Rajaraman, S., Wesensten, N. J., and Reifman, J., (2013), “PC-PVT: A platform for psychomotor vigilance task testing, analysis, and prediction” Behavior Research Methods, Vol. 46(1), pp. 140-147.

Smolensky, M. H., Di Milia, L., Ohayon, M. M., and Philip, P., (2011), “Sleep disorders, medical conditions, and road accident risk” Accident Analysis & Prevention, Vol. 43(2), pp. 533-548.

Trick, L. M., Enns, J. T., Mills, J., and Vavrik, J., (2004), “Paying attention behind the wheel: a framework for studying the role of attention in driving” Theoretical Issues in Ergonomics Science, Vol. 5(5), pp. 385-424.

Van Dongen, H.P., Maislin, G., Mullington, J.M., and Dinges, D.F., (2003), “The cumulative cost of additional wakefulness: Dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivation” Sleep, Vol. 26(20), pp. 117-126.

Williamson, A., Lombardi, D. A., Folkard, S., Stutts, J., Courtney, T. K., and Connor, J. L., (2011), “The link between fatigue and Safety” Accident Analysis & Prevention, Vol. 43(2), pp. 498-515.