School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.
Urban Rail Transit Center, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China.
Int J Environ Res Public Health. 2022 Apr 21;19(9):5041. doi: 10.3390/ijerph19095041.
The operation of a large-scale metro system creates problematic interior noise; the impact of this noise on passengers and drivers is a subject of increasing concern. To investigate the quantitative relationship between metro interior noise and passengers' annoyance, this study analyzed questionnaires on passenger annoyance completed by 118 volunteers. The feedback from the questionnaire concerned eleven metro lines in Beijing. To test the interior noise levels, the volunteers were divided into two groups: A and B. The volunteers in group A took the same metro train as the testers, whereas those in group B took different trains. A total of 2080 noise annoyance samples from metro tunnel sections were collected and analyzed. Finally, the exposure-response relationship between interior noise and passenger annoyance was obtained by fitting these data with a logistic function. The results indicated that there was a significant positive correlation between the average subjective annoyance and the averaged equivalent sound pressure level. The fitting result was better for group A than for group B. For the mixed samples of two groups, the fitting result was greatly affected by the contribution of group A. To provide an acoustically comfortable environment, metro interior noise should not exceed 84-85 dB(A).
大规模地铁系统的运行产生了有问题的内部噪声；这种噪声对乘客和驾驶员的影响是人们日益关注的问题。为了研究地铁内部噪声与乘客烦恼之间的定量关系，本研究分析了 118 名志愿者完成的关于乘客烦恼的问卷。问卷的反馈涉及北京的 11 条地铁线路。为了测试内部噪声水平，志愿者被分为两组：A 组和 B 组。A 组的志愿者乘坐与测试人员相同的地铁列车，而 B 组的志愿者则乘坐不同的列车。共采集和分析了 2080 个来自地铁隧道部分的噪声烦恼样本。最后，通过将这些数据拟合到逻辑函数中，获得了内部噪声与乘客烦恼之间的暴露-反应关系。结果表明，平均主观烦恼与平均等效声压级之间存在显著的正相关关系。A 组的拟合结果优于 B 组。对于两组混合样本，A 组的贡献极大地影响了拟合结果。为了提供一个声学舒适的环境，地铁内部噪声不应超过 84-85dB(A)。
