The Dynamic Analysis on Hospital Noise in Central Taiwan

摘要

In this study, a series of noise level measurements at eleven comprehensive hospitals (single lobby) in central Taiwan have been executed. And a comparison with the regulation of World Health Organization (WHO) shows the urgent needs of the better guidelines concerning the noise control in hospitals building design. A solution to this problem has been discussed using a prediction code for traffic or electromechanical equipment and a recommendation to analyze the noise floor (grade) inside and outside the hospitals. And they will be reviewed during the design stage for minimization. We found the noise levels are averaged from 60 to 65 dBA through the noise level of equivalent quantity (Leq) using 15 minutes integration for 24 hours period. These noise levels are two times and higher than 55dBA of Noise Control Standards. The noisy level questionnaire was employed to survey how noisy does the hospitals lobby hall. We found noisy level is correlated well with the noisy duration or cumulated rate (NCR), and the control standard may be in accordance with them. We test and verified that changing material in hospitals lobby hall will decrease the NC (noise criteria) values. Finally, the noisy level in hospital are mainly aroused by architectural or medical facilities was verified by using statistical analyzing.