结合噪声冲击指数的城市住宅小区交通噪声综合评价(英文)

Synthetic Assessment of Traffic Noise in Urban Residential Area Based on Noise Impact Index

结合噪声冲击指数(NII)的城市住宅小区交通噪声综合评价,比单一的LeqA评价结果更加符合噪声污染的实际情况.文中以广州市"天一新村"为例,探讨如何利用GIS图形数据的中介作用,实现噪声冲击指数计算中众多人口数据与噪声级数据的分区域管理,从而简化计算过程,提高计算效率,并对评价结果的合理性进行主观评价验证.

The synthetic assessment of traffic noise in urban residential area based on noise impact index （NII） is more relevant to the real situation of noise pollution, as compared with the traditional LeqA evaluation system. In this paper, Guangzhou Tianyi residential area is selected as an example to investigate how to use the intermediary role of graphic data obtained by Geographic Information System （GIS） to realize the subregional management of population and noise levels in the calculation of NII, which can further simplify the process of computation, enhance the efficiency and subjectively testify the rationality of the assessment results,