Study on the correlation between noise perception and annoyance level of residents in residential areas along the tracks

Noise has gradually become a key problem that cannot be ignored in urban environment. In recent years, with the rapid development of railway transportation in China, the sound environment of residential areas along the track is very complex, among which the noise and vibration brought by train running will affect human health. Therefore, this study adopts the subjective evaluation method to conduct a questionnaire survey on the sound environment of residential areas along the track, and studies the correlation between residents' noise perception and annoyance level. The results show that there is a strong correlation between noise perception and annoyance (p<0.01).In addition, noise perception and annoyance level are significantly different between daytime and nighttime. It is found that the sensitivity and annoyance level of railway noise in daytime are lower than those in night. The above results may be due to the masking effect of residents' activities and road noise on railway noise during daytime, which reduces the perceptual sensitivity of railway noise during daytime. The results can provide guidance for setting noise limits of railway running in different periods.