Liu Quanmin, Gao Kui, Song Lizhong, Liu Linya, Luo Yunke
State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang, 330013, China.
Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Sci Rep. 2024 Nov 29;14(1):29680. doi: 10.1038/s41598-024-80786-4.
This study investigates the impact of the noise radiated from airplanes, urban rail transit, high-speed railways, and urban roads on residents near an airport. The results showed that all respondents near the airport were highly annoyed with airplane noise, and some remain annoyed with the noise from the urban rail transit and high-speed railway connecting to the airport. The most detrimental aspect of transportation noise was sleeping disturbance. Transportation noise from 19:00 to 24:00 primarily caused the annoyance of surrounding residents. Airplane noise is the largest source of sound pollution in residences in the region adjacent to the elevated urban rail transit and airport. The insertion loss of vertical sound barrier with a height of 2.4 m at the points 25 m away from the track centerline is 6.9-8.6 dB, but the sound pressure level below 40 Hz is amplified owing to the structure-borne noise radiating from the barrier itself. The presence of sound barriers can reduce the high annoyance level from 24 to 8.2%.
本研究调查了飞机、城市轨道交通、高速铁路和城市道路所辐射的噪声对机场附近居民的影响。结果表明,机场附近的所有受访者对飞机噪声高度不满,一些人对连接机场的城市轨道交通和高速铁路的噪声仍感到不满。交通噪声最有害的方面是睡眠干扰。19:00至24:00的交通噪声主要引起周边居民的不满。在邻近城市轨道交通高架桥和机场的区域,住宅中飞机噪声是最大的声源。距轨道中心线25米处高度为2.4米的垂直声屏障的插入损失为6.9 - 8.6分贝,但由于声屏障本身辐射的结构噪声,40赫兹以下的声压级会被放大。声屏障的存在可将高不满程度从24%降低至8.2%。