Use of radar data to compute noise exposure maps

There are two methods of modelling aircraft ground tracks for noise contours: theoretic tracks based on AIP description or use of radar data. The most common method used to compute noise contours is the theoretic tracks method.

ACNUSA (French independant authority in charge of aircraft noise around airports) asked a sensitivity analysis to compare the 2 methods and to evaluate the impact of radar data on noise contours.

The example of Nantes-Atlantiques noise exposure map has been studied.