School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China.
School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
Environ Sci Pollut Res Int. 2019 Mar;26(9):9203-9218. doi: 10.1007/s11356-019-04378-w. Epub 2019 Feb 4.
In order to alleviate the shortage of land use accompanied with urbanization, over-track building complexes above metro depots are developed rapidly in China, resulting in the larger mechanical ventilation needs in the metro depot. Excessive noise exposure caused by the huge ventilation system will bring serious impacts on the health of workers in the metro depot. This research intends to evaluate the noise annoyance in the metro depot and the noise influences on adjacent residential buildings by the ventilation system. A questionnaire survey of 100 people working in a metro depot of Guangzhou Metro Line 6 was conducted, and field measurements inside the metro depot and inside adjacent residential buildings were carried out. The environmental noise level in the metro depot and the ventilation fan-induced noise level inside adjacent residential buildings exceed the corresponding criterion limit of China. Dose-response relationship modeled by logistic function was used to assess the noise annoyance, which is found underestimating the percentage of "Annoyed" (% A) and percentage of "Little Annoyed" (% LA) of staffs in the metro depot, especially for the % LA. This may be attributed to the reducing reliability of dose-effect curves as the L is higher than 65 dB(A). In order to alleviate the noise impact, noise-controlling measures need to be took. However, traditional noise-controlling measures cannot solve low-frequency noise disturbance.
为缓解城市化带来的土地利用紧张问题，中国迅速发展了地铁车站上方的越行式综合体建筑，这导致地铁车站需要更大的机械通风量。庞大的通风系统产生的过量噪声会对地铁车站工作人员的健康造成严重影响。本研究旨在通过地铁通风系统评估地铁车站内的噪声烦恼度以及对相邻居民楼的噪声影响。对广州地铁 6 号线某地铁车站的 100 名工作人员进行了问卷调查，并对地铁车站内和相邻居民楼内进行了现场测量。地铁车站内的环境噪声水平和相邻居民楼内通风机引起的噪声水平均超过了中国相应标准限值。采用逻辑函数模型拟合剂量-反应关系来评估噪声烦恼度，结果发现该模型低估了地铁车站工作人员的“烦恼”（%A）和“稍有烦恼”（%LA）的百分比，尤其是%LA。这可能是由于当 L 高于 65 dB(A)时，剂量-效应曲线的可靠性降低。为了减轻噪声影响，需要采取噪声控制措施。然而，传统的噪声控制措施无法解决低频噪声干扰的问题。
