论文部分内容阅读
随着社会主义建设事业的发展,机动车辆不断增加,机动车辆的噪声已经是城市噪声的一个重要来源。根据有关单位对北京市机动车辆噪声污染的调查报告可以看出,北京市机动车对环境的噪声污染是比较严重的。例如临街建筑受到车辆噪声一般影响的街道占14.3％,其车辆噪声级平均在57dB(A)左右;受到车辆噪声影响较严重的街道占21.5％,其车辆噪声级平均在60dB(A)左右;而受车辆噪声影响严重的街道占64.2％,其车辆噪声级平均在63dB(A)左右。所以车辆的噪声已经影响了机关、医院、学校和居民的正常工作、学习和休息。
With the development of socialist construction, the number of motor vehicles has been constantly increasing, and the noise of motor vehicles has become an important source of urban noise. According to the investigation report about the noise pollution of motor vehicles in Beijing, the noise pollution caused by motor vehicles in Beijing is serious. For example, 14.3% of the streets affected by vehicle noise in street-side buildings are generally affected. The average vehicle noise level is about 57dB (A); the streets affected by vehicle noise are 21.5% on average, and the average vehicle noise level is about 60dB (A) The streets affected by the noise of vehicles account for 64.2%, and the average vehicle noise level is about 63dB (A). So the noise of vehicles has affected the normal work of institutions, hospitals, schools and residents, learning and rest.