Leq + X: Re-Assessment of exposure-response relationships for aircraft noise annoyance and disturbances to improve explained variance
* Presenting author
There is evidence from literature that an increased fraction of people is highly annoyed by aircraft noise by given average noise levels than in previous decades. Among potential reasons are changes of the air traffic over the last decades such as the increased number of movements along with a less noisy fleet mix that might be relevant for noise responses but are not adequately reflected by average noise metrics. In the Leq+X project, data of two German and two Swiss field studies comprising aircraft noise exposure and annoyance data of about 37’700 residents living around altogether seven airports are re-analysed. Among others, the analyses include logistic regression models of the percentage (highly) annoyed, (highly) sleep disturbed and (highly) disturbed in communication on the Leq (day/night), on the Leq combined with either maximum sound level (Lmax) or number of events above threshold (NAT), and on the Lmax combined with NAT for different thresholds. Further models include the Leqk with non-energy-equivalent parameters k = 20 or 30, which weight the number of events more strongly than the energy-equivalent Leq (k = 10). In this paper, the methodological approach and first results will be presented.