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"Buku yang berjudul "The new American machinist's handbook" ini merupakan sebuah buku panduan mengenai masinis. "

"Penelitian tentang pajanan bising telah banyak dilakukan pada kereta api lokomotif, sedangkan penelitian sejenis pada kereta api commuter line masih jarang dilakukan. Kabin masinis commuter line juga berpotensi terpajan bising yang tinggi baik dari suara yang berasal dari kereta itu sendiri maupun dari kereta lain yang berpapasan saat diperjalanan. Metode penelitian ini adalah kuantitatif dengan pendekatan cross sectional. Besar sampel pada penelitian ini adalah 199 masinis kereta api commuter line Jabodetabek. Pengukuran tingkat bising di dalam kabin diukur dengan sound level meter dan faktor risiko lainnya dikumpulkan dengan kuesioner.Hasil penelitian menunjukkan bahwa 62.3% masinis tidak memiliki keluhan pendengaran subyektif dan rata-rata tingkat kebisingan di dalam kabin masih di bawah nilai ambang batas sehingga tidak ada faktor risiko yang berhubungan dengan keluhan pendengaran subyektif. Namun perlu dipertimbangkan untuk melakukan pengukuran tingkat kebisingan pada semua jenis rangkaian kereta, dan selalu menutup kaca jendela kabin, serta melakukan pemeriksaan audiometri sebagai base line data bagi PT. KAI terhadap fungsi pendengaran masinis.

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Research about noise exposure has been much done on a locomotive train, while similar research on commuter line train is still rare. Cabin machinist the commuter line also potentially exposed to high noise from sound that coming from the train itself or from another train that passed while on the road. This research method is quantitative cross-sectional approach. The sample size in this research was 199 machinist commuter line. Measurement noise rate inside the cabin is measured with a sound level meter and other risk factors was collected by questionnaire.The result showed that 62.3 % machinist have no disorders of hearing subjective and average rate of noise in the cabin was still below threshold value so there was no risk factors associated with hearing complaints subjective. However, it should be considered to measure noise rate in all types of circuit train, and always close the window cabin, as well as audiometric examination as base line data for PT. KAI on auditory function machinist."

"Machinists have a big responsibility in controlling trains and maintaining the safety of trips. When a machinist has an irregular work schedule, monotonous and long schedules, he may experience fatigue while on duty. Fatigue can cause a decrease in performance and lead the machinist to make mistakes that can later be the cause of railway accidents. Fatigue assessments, then, become an important program that can be used by management to improve railway safety. In this study, a fatigue evaluation was conducted among 30 machinists working at the Indonesian Railway Company (PT. Kereta Api Indonesia or PT. KAI). The evaluation consists of assessing the quality of sleep with The Pittsburgh Sleep Quality Index (PSQI), the measurement of subjective sleepiness with Karolinska Sleepiness Scale (KSS), the measurement of secondary work performance with Psychomotor Vigilance Test (PVT), and heart rate measurements employing a heart rate monitor (Beurer PM-18). Results of this study showed that most of the machinists experienced sleep quality problems. Also, the sleepiness level of the machinists continued to increase at work and the reaction time was worse at the end of his shift, although levels of physical fatigue were not substantial. Suggestions were proposed to the management, including new work schedules using shift rotations in order to reduce fatigue."