고속도로 톨게이트 요금수납원 소음노출 수준 평가

다국어 초록 (Multilingual Abstract)

According to the survey for working environment of the cashiers in highway tollbooths, workers replied that noise was the most harmful substances next to air pollutant in the tollbooth. Researches on the noise levels exposed to cashiers in the highway tollbooth scarcely have been performed. Therefore, the aim of this study was to acquire baseline data to prevent health impairments of the cashiers by evaluating noise level exposed to them. Noise dosimeters were used for monitoring workers’ noise exposure level in the tollbooths at 8 different highway tollgates. The noise levels of tollbooths did not exceed noise exposure limit of the ministry of labor, 90 ㏈(A). The average TWA inside of the tollbooths was 55.4 ㏈(A) and the average TWA outside of tollbooths was 58.3 ㏈(A). The average TWA outside of tollbooths was slightly higher than that of inside of tollbooths. However, the significance probability(p-value) was 0.255 which means statistically not significant. The noise levels inside and outside of tollbooth were statistically significant to both mean traffic volume per day and traffic volume of passenger car.

참고문헌 (Reference)

1 김철환, "고속도로 발생소음의 특성 분석" 한국소음진동공학회 22 (22): 1191-1198, 2012

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6 Roh, Y. M., "A Survey on the Air Pollution of Expressway Tollgates in Korea" 2 (2): 142-152, 1990

7 Kim, S. D., "A Study on the Condition of Air Pollution Near Tollbooths on Highway" 11 (11): 359-368, 1990