Comparison of different noise analysis methods for noise abatement flight procedures

Abstract

The paper describes the influence of several landing approach variables (e.g. level segments at different altitudes, stabilization height or glide slope angle) on perceived aircraft noise. The existing Low Drag Low Power procedure is varied using performance calculations and fast time simulations. Evaluation of noise reduction is carried out using conventional methods like noise level contours and using the DLR awakening criterion. Latter was used by the Regional Council of Leipzig (Germany) for the establishment of a noise protection plan in the official approval process for the expansion of Leipzig/Halle airport. Special attention is given to the dose-response relationship between the maximum sound pressure level of an aircraft noise event and the probability to wake up. The results of the conventional methods are compared to those of the awakening criterion to look for similarities or differences.