Changes in work accuracy in a noisy environment : A case of work accuracy in the marine engine room environment :A case of work accuracy in the marine engine room environment

Yanbin Wu; Makoto Uchida; Yuh Sasawaki; Maki Kado; Gamini Lokuketagoda; Takashi Miwa

doi:10.5916/jkosme.2017.41.5.461

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자료유형: 학술저널

저자정보: Yanbin Wu (Kobe University) Makoto Uchida (Kobe University) Yuh Sasawaki (Kobe University) Maki Kado (Japan agency of Maritime Education and Training for Seafarers) Gamini Lokuketagoda (Australian Maritime College) Takashi Miwa (Kobe University)

저널정보: 한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제41권 제5호

발행연도: 2017.6

수록면: 461 - 466 (6page)

DOI: 10.5916/jkosme.2017.41.5.461

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It is a requirement that the noise level in the engine rooms of modern ships meet the International Maritime Organization (IMO) noise level code criteria. This standard comes as it had been revealed that, in noisy environments, ship engineers are uncomfortable and lack concentration, and as a result might experience a reduction in work accuracy. In a noisy environment, it has been found that engineers not only feel fatigued but also work with less precision. These facts have been empirically demonstrated.
In the laboratory, a noisy environment was reconstructed by playing the machine operating sound, recorded in a ship engine room, and laying down metal floor plates similar to those found in a ship engine room. Speakers were installed under the metal floor plates, and the recorded machine operating sounds were played back from the speakers during the experiments. In the experiments, the participants were asked to perform work tasks in the noisy environment. The participants’ biological responses were measured during the experiment. The output from speakers during the experiment was measured by a precision sound level meter at a height corresponding to the ear level of the participant.
In this study, we measured biological responses, such as heartbeat and brain waves (alpha band wave, beta band wave, etc.), as an evaluation index. From the biological responses, we estimated the participants’ mental workload in the noisy environment.

#Noisy environment #Mental work load #Work fatigue

참고문헌 (6)

참고문헌 신청

Class NK Technical Information, No. TEC-0947, https://www.classnk.or.jp/hp/pdf/tech_info/tech_img/T947 e_for_attachment.pdf, Accessed December 12, 2016. E. D. Walker, A. Brammer, M. G. Cherniack, F. Laden, and J. M. Cavallari, “Cardiovascular and stress responses to shortterm noise exposures - A panel study in healthy males,” Environmental Research, vol. 150, pp. 391?397, 2016. T. S. Braver, J. D. Cohen, L. E. Nystrom, J. Jonides, E. E. Smith, and D. C. Noll, “A parametric study of prefrontal cortex involvement in human working memory ,” NeuroImage, vol. 5, no. 1, pp. 49?62, 1997. S. G. Hart, Development of NASA-TLX (Task load index): Results of empirical and theoretical research, Advances in Psychology, vol. 52, pp. 139-183, 1988. H. Yanai, Hand Book of Multivariate Analysis, Gendai- Sugakusya, p. 272, 1986 (in Japanese).

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