What is noise?
Noise consists of sounds that travel through the air as a series of waves, which are described and measured in decibels dB(A).
Noise is also characterised according to loudness (amplitude) and pitch (frequency). These components can make noise less noticeable, for example the sound of an air conditioner; or more annoying, such as tonal or impulsive sounds like vehicle horns.
We experience a range of noises in everyday life, which affects everyone differently. People who live in quiet areas will often experience an increase in noise more than those living in noisy environments.
Above graph provided by the New South Wales Minerals Council Factsheet.
Our mines generally operate 24 hours a day, seven days a week. Under certain weather conditions, mining noise can be heard in neighbouring community areas from time to time. Haul truck engine and exhaust, track noise from dozers, and impact noise from the loading of material into trucks are some of the more commonly audible sources.
Metoeorological conditions have a significant influence on the propagation of noise from one night to the next. Prevailing wind conditions and the presence of temperature inversions affect the way that noise travels through the air and is experienced nearby.
More information can be found in the Noise Management Plans in our document library.