Penrice Soda Holdings Ltd. - Minerals
The median difference between measured and predicted noise levels was +0.5 dB(A) (i.e. the model over predicted by 0.5 dB(A)) with a standard deviation of 1.5 dB(A). Predicted noise levels at the boundary were within ±2 dB(A) of measured levels. This is considered to be a good correlation between predicted and measured noise levels.