Developing Measuring Formulating Norms and Indicators for Indoor Noises in Public Places

• Main Authors: Yu-Jyun Jhang, 張瑜君
• Other Authors: Luke Chen
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/03919984424720380938

碩士 === 淡江大學 === 水資源及環境工程學系碩士班 === 96 === Noises derived from public places such as libraries and hospitals/clinics are increasingly concerned by the public. In order to ensure the rights of the public to enjoy a tranquil living environment, to protect the health of the public, to enhance the acoustic quality in such places, and to encourage improvements through self-management, it is necessary to reduce the noises derived from libraries and hospitals/clinics. The objectives of this study include: 1. to develop measuring indicators and methods for indoor noises, and to formulate recommended clearance levels for the indoor noise control in public places that is suitable for the country; 2. to suggest indoor noise control measures to reduce noise level in the public places. The research has completed the following studies: 1. conducting indoor noise measuring for libraries and hospitals/clinics and performing statistical analysis of the results at 15 different locations (completed 68 measurements in total, including spectrum investigations; 2. collecting measuring indicators and methods for indoor noises in the public places that are adopted in Europe, the US and Japan; 3. collecting data on the effect of indoor noises to the human body, executing indoor noise level measuring and conducting 1,320 questionnaire surveys and analysis on indoor noise level. As the results of the surveys, the recommended clearance levels of indoor noises for the libraries in Taiwan are under 50dB(A) (inc.), which are similar to other foreign countries. The recommended clearance levels can be divided into three class (Second Class - above 50dB(A) (inc.); First Class: 45dB(A) (inc.)~50dB(A) (exc.); Premium Class: under 45dB(A) (exc.)). Furthermore, the recommended clearance level of indoor noises for the hospital is under 60dB(A) (inc.), which is 10dB(A) different from those of foreign countries. The recommended clearance level of indoor noises for the hospital can be divided into three classes (Second Class (loud): 60dB(A) (inc.); First Class (normal): 50dB(A) (inc.)~60dB(A) (exc.); Premium Class (quiet): under 50dB(A) (exc.)). The research has collected foreign noise control measures in public places, and also analyzed their pros and cons as well as the feasibility. However, there are only a few countries currently having indoor noise control measures and indoor noise standards. Throughout the research, it is found that only China and New Zealand have laws and regulations on indoor noises, however there are no penalties associated with these regulations. Therefore, concept of “self-management” will be introduced to the management of libraries and hospitals/clinics on improvement of indoor noises control.