This study is an attempt to analyse the spatial distribution of traffic noise levels in the city of Delhi through the creation of noise maps with the help of GIS. Field measurements were conducted at 10 locations consisting of different land-use patterns. It was observed that the measured ambient noise levels at all the locations were violating the prescribed limits as prescribed by CPCB. Noise levels were found to be in proportion to the vehicular population. Noise level values obtained from the developed noise maps have given very close results to the measured values. The percentage difference between the predicted noise level and the monitored noise level was found to be between 4 and 7%. This study will help the concerned authorities to identify the hot spots of noise within the city and to take appropriate actions to curb the noise pollution in those particular areas.

这项研究旨在通过借助GIS创建噪声图来分析德里市交通噪声水平的空间分布。在由不同土地利用方式组成的10个地点进行了实地测量。观察到，在所有位置处测得的环境噪声水平都违反了CPCB规定的规定限值。发现噪音水平与车辆人口成正比。从已开发的噪声图获得的噪声水平值与测量值非常接近。发现预测噪声水平与监视噪声水平之间的百分比差异在4％和7％之间。