engleski

Relations between the Type of Locomotive or Motor Composition and Disturbance of Engine Drivers caused by Traffic Noise

Prolonged exposure to high intensity noise results in strong psychological and physiological effects and hearing loss which can lead to subjective feelings of disturbance from cognitive perception of engine drivers and reduced working capacity. Apart from permanent health problems, reduced speech intelligibility due to broadband noise exposure results in unreliable communication in driver's locomotive which can significantly affect the safety management of the train by increasing the perception-response time of drivers to sounds from traffic and working environment, causing increased difficulty of the engine drivers’ task according to open dynamic Fuller TCI model of “task demand – driver’s capability”. The paper presents the subjective assessment of the respondents’ own state of hearing impairment, the effect of different noise sources in the locomotive or motor composition, as well as the subjective impression of the quality of speech intelligibility in communication between drivers and/or dispatchers. Relations between percentage occurrence of specific causes of temporary or permanent subjective feelings of disturbance in relation to type of locomotive or motor composition have been researched. The correlations of the respondents’ subjective ratings to the auditory effect of noise ; TTS and tinnitus as well as possible symptoms of vibroacoustic disease in relation to exposure time defined by the working age of male respondents from the Republic of Croatia have been also studied.

engine drivers; noise; subjective disturbances; TTS; tinnitus; vibroacoustic disease

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