Real-time noise metrics (sound pressure level, A-weighted noise level, noise onset rate, and other instantaneous noise metrics) are stored over the entire flight operation and for the complete airfield, which can be modelled with a grid the size of the airplane itself. Visualisation of noise metrics is done with post-processing techniques. It is interesting to see which areas of the airfield are affected, by how much, and how fast. These composite metrics can be aggregated to provide integral metrics such as EPNL, SEL and LEQ. It would not be possible to execute this level of simulation with engineering practice programs used at some airports.

Watch a video clip of these operations.