今天,大城市的噪声已成为一个日益严重的问题。许多医生、生理学家和心理学家都一再强调噪声对人的危害作用。它刺激人的感官,干扰人的工作,成为人易动怒的一个原因。恶劣的噪声环境对人的健康极为有害。当心理负担增大和工作任务繁重时,我们尤其需要有一个安宁舒适的环境。近年来,噪声之所以显得愈来愈突出,首先是由于交通密度过大引起的。街上每天成千上万辆汽车行驶不绝。此外,发动机的功率、速率提高了,也是交通噪声日趋严重的一个因素。车辆、行人流量最大的街道,在 Today, noise in big cities has become a growing problem. Many doctors, physiologists, and psychologists have repeatedly emphasized the harmful effects of noise on people. It stimulates people’s senses, interferes with people’s work and becomes a cause of human anger. The harsh noise environment is extremely harmful to human health. When the psychological burden increases and the workload is heavy, we need to have a peaceful and comfortable environment in particular. In recent years, noise has become more and more prominent, first of all because of excessive traffic density. Thousands of cars are driving on the streets every day. In addition, the power and speed of the engine have increased, which is also a factor in the increasing traffic noise. The street with the highest traffic and pedestrian traffic is