Salzburg's Municipal Office for Environmental Protection has put together a Noise Balance 1988-98 in the framework of the continual processing of the measuring data of the flight alarm control system.
The Environmental Office comments over this 10 year retrospective:
During the period between 1988 -98 the number of flight movements increased by 130%. The recording of the relevant constant noise level during the same period was 75%. This means that the noise development of aircraft has decreased dramatically. Most of the types of aircraft using Salzburg airport are noticeably below the noise level for the quietest aircraft category. Despite the increasing flight movement it has become significantly quieter around Salzburg Airport. A further improvement can be expected through the eradication of the last relatively loud aircraft type within the lowest sound aircraft category 3. To actually reach the determined limit the number of flights at Salzburg Airport would have to increase by 300%.
The various types of aircraft and their effect on the flight noise development was also assessed. In 1988 the aircraft type would have only to allow for 2760 flight movements in 1998 (currently 26000). On the other hand with a greater noise level, as many as 101000 flight movements could have taken place in 1988 with the mix of aircraft from 1998.
In the last 10 years, there has been a reduction in the noise level, from 66 to 60 db, in the most sensitive noise control area at Taxham.
Noise reduction zones: forecast for 2015
As part of Bavaria’s regional development program and the associated construction planning, at the end of September 2001 the Bavarian Ministry for Regional Development and Environmental Affairs asked Salzburg Airport to help recalculate the noise reduction zone for Salzburg Airport which is located on Bavarian territory. In coordination with the management of Salzburg Airport W. A. Mozart, the Salzburg Office of Environmental Protection was commissioned to have its technical work group prepare noise-reduction zone forecast by 2015. The calculations for German territory were made pursuant to Bavarian regulations (AzB-LBayern) and on the Austrian side in compliance with the recommendations set forth in ÖAL Directive 24 page 1.
The initial results were presented at the 33rd meeting of the Austro-Germanic Flight Noise Committee on April 17, 2002. The main finding of the forecast study was that even if flight movements increase by 50% by 2015, the area of the flight noise zone will be significantly smaller than that forecast for 2000: The flight noise zones for up to 55 dB consequently shrinks from 14.71 to 11.18 km². The results of the calculations were submitted for validation to the Bavarian Bureau for Environmental Protection in its capacity as a neutral authority. On the Austrian side Salzburg’s Provincial Department for Environmental Protection was consulted in the same capacity. On the basis of the study on noise reduction zones, the noise experts at the Salzburg Municipal Administration Office drafted a proposal for an additional noise measurement station in the vicinity of Moos Street to collect better data on landings on Runway 34 and take-offs from Runway 16.
Boeing Airport Noise Regulation site
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