The Investigation on subjective annoyance of typical noise in urban living environment and the preliminary study on the applicability of A, Z and G weighting network in noise evaluation

A large number of medical related research results show that low-frequency noise is more likely to cause negative emotions such as anxiety, boredom, uneasiness, and then affect work, study and even inducing heart disease, hypertension, stroke, overweight, diabetes after a long-term effects. However, in the current domestic building standards, noise-evaluation indicators indicators mostly use A-weighted SPL, resulting in insufficient recognition of the low-frequency problem in the acoustic environment. At present, the domestic related research is relatively deficient in China. This paper takes Tianjin,China as an example, the noise characteristics of the five typical noise sources selected by the research group in the previous general survey of urban residential environment, including indoor and outdoor noise sources, were measured on site and sound source samples were collected. According to this, the subjective annoyance degree of noise under different level conditions such as noise type and intensity is evaluated. Meanwhile, based on the above evaluation results, this paper makes a preliminary discussion on the applicability of A, Z, G weighting networks of SPL in noise evaluation.