PENGUKURAN BEBAN KERJA MENTAL MASINIS KERETA API MENGGUNAKAN METODE RNASA-TLX

Latifatul Husna, Nuzulul (2023) PENGUKURAN BEBAN KERJA MENTAL MASINIS KERETA API MENGGUNAKAN METODE RNASA-TLX. Thesis thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The Ministry of Transportation continues to develop national railways throughout Indonesia by improving services in terms of comfort, security, safety and timeliness in order to increase public trust. The main indicator of the success of transport service delivery is from the aspect of safety and security, while humans themselves become one of the factors of train accidents among the 3 factors of facilities & infrastructure, human resources, and natural factors. This study aims to measure the mental workload of machinists at UPT Crew KA Yogyakarta with a perspective during official travel in the locomotive as a train crew consisting of the role of a machinist and assistant machinist, which is then compared based on the role of the train crew and based on the classification of the machinist's position level. The subjective measurement method used is the RNASA-TLX Method which is a development of the NASA-TLX method where the measurement dimensions have been developed and adjusted to evaluate mental workload in driving activities. RNasa-Tlx is adjusted into the following indicators consisting of: Mental Demands, Visual Demands, Time Demands, Auditory/ Hearing Demands, Difficulty in driving, and Difficulty in understanding information. As a result of the mental workload measurement, the RNASA-TLX score for the Machinist role was 75.54 and for the Assistant Machinist role was 75.85. Overall, the measurement results show that the workload felt by the train crew is classified as a high workload because the average WWL value obtained is in the range of 50-79. From the study results, it was found that the WWL score as a train driver is dominated by activities that require mental activity and as an assistant train driver is dominated by activities that require visual activity. On the other hand, from the results of statistical testing with the t test, there is no difference in the RNASA-TLX score for the role of train crew as drivers and assistant drivers, so that these roles both require a high level of responsibility.

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