Noise Hazard Management: An Investigation of The Connection Between Stress Levels and Noise Level Among Ferry Engine Operators and Ticket Collectors

Abstract

Noise hazards are a significant concern for workers in the transportation industry, particularly ferry engine operators and ticket collectors, who are frequently exposed to high noise levels during their daily tasks. This study investigates the relationship between noise levels in ferry environments and stress levels among these workers, aiming to provide insights into effective noise hazard management strategies. While noise-induced hearing loss (NIHL) is a well-documented consequence of prolonged exposure to high noise levels. This study adopts a mixed-methods approach to evaluate the connection between noise exposure and stress levels. Quantitative data on noise levels were collected using sound level meters in various ferry operations, with measurements taken at both engine rooms and ticket collection areas during peak and non-peak hours. Stress levels were assessed through validated psychological stress questionnaires and physiological indicators, such as heart rate variability (HRV), among ferry engine operators and ticket collectors. Additionally, qualitative interviews were conducted to capture workers’ subjective experiences and coping mechanisms related to noise exposure. The results reveal a strong correlation between noise levels and stress levels, with engine operators experiencing higher stress due to prolonged exposure to noise levels exceeding 90 decibels. Ticket collectors, although less exposed to extreme noise, reported stress linked to intermittent loud sounds combined with customer interactions in high-pressure environments. Based on these findings, the paper recommends a comprehensive noise hazard management framework. Finally, stress management initiatives, such as mindfulness training and wellness programs, are suggested to improve workers’ overall resilience respectively.