Noise Protection

Air traffic is associated with noise, even in the age of modern technology. And most of the people living near the airport area hear it directly. Reducing the disturbance caused by aircraft noise for local residents is a central environmental goal at Mitteldeutsche Flughafen AG. We have spontaneously chosen to adopt a number of different measures in order to minimise the effects of noise on the surrounding area as far as possible.

Active noise protection

Active noise protection involves reducing the sound at its source as well as along the route that the sound travels.

The active sound protection measures adopted at Leipzig/Halle Airport comprise the following:

All the aircraft operating at Leipzig/Halle and Dresden airports meet the EU-wide prescribed minimum requirements in relation to their maximum permissible noise emissions. According to them, they must comply with the noise thresholds set in Chapter 3, Annex 16, of the regulations of the International Civil Aviation Organization (ICAO).

The take-off and landing fees depend on the relevant noise certification provided for the particular aircraft type. As a result, modern planes, which meet the latest technology standards, pay lower fees than older aircraft, which are automatically louder too. This then gives the airlines an incentive to use aircraft that create less noise. The sliding scale of the fees in line with noise emissions is an important element in our efforts to reduce aircraft noise at our airports.

Leipzig/Halle Airport has built noise protection walls and a noise protection embankment to reduce the disturbance caused by noise very close to the airport site. The walls are located, for example, along the village of Freiroda and in the southern area of the airport next to the cargo apron used by DHL.

These measures restrict the sounds that occur during ground handling operations at the airport.

Airlines have no longer been allowed to operate scheduled passenger flights at our airports between 11:30 p.m. and 5:30 a.m. since the summer timetable in 2008.

Training and practice flights are only permissible between 6 a.m. and 10 p.m. on Mondays – Saturdays. The training flights have been routed in such a way that the planes do not fly over residential areas very close to the airport as far as possible.

Flight procedures (flight paths) are laid down by the Federal Supervisory Office for Air Traffic Control (BAF), which is the supervisory authority for organising air traffic control in Germany; this takes place through a legislative decree (the Implementation Order for Air Traffic Regulations) according to Section 32 Para. 4c of the Air Traffic Act in conjunction with Section 27a Para. 2 Page 1 of the Air Traffic Regulations. The participation of the local aircraft noise committee and the involvement of the Federal Environment Agency ensure that the noise protection interests of people who are affected locally can be recorded and considered to an adequate degree.

Deutsche Flugsicherung GmbH (DFS or Germany’s air traffic control company), which is the planning authority responsible for flight procedures, submits verifiable plans to the Federal Supervisory Office for Air Traffic Control on each occasion when newly introducing intended routes or making changes to flight procedures. The aircraft noise committee according to Section 32b of the Air Traffic Act and the Federal Environmental Agency, with which a so-called consultation process has to be drawn up according to Section 32 Para. 4c of the Air Traffic Act, are also involved in this procedure. It is essential to adequately determine and weigh up all the relevant points of view for the decision as part of the necessary legislative process.  

DFS not only considers the criteria of safety, meeting the capacity requirements and the length of the route, but also the disturbance caused by the aircraft noise right from the time that plans are drawn up for the flight procedures. DFS presents the options that it has prepared to the local aircraft noise committee and the latter assesses them. The results of its deliberations are taken into account during the final consideration and passed on to the BAF with a procedure recommendation.

The BAF uses a careful consideration process to examine whether the suggested draft plans presented by DFS are correct and comply with legislation and forwards them to the Federal Environment Agency at the same time for its comments in order to then submit a final proposed regulation in consultation with this office to the Federal Ministry of Justice; the latter then examines whether it complies with existing law. Once the measure has been successfully examined, the procedures are laid down by the BAF as a legislative decree and are put into effect by publishing them in the Federal Gazette.  

In practice, it is not always possible for aircraft to precisely fly along the prescribed arrival and departure routes. This may be because of the wind or weather situation or the aerophysical characteristics of the individual aircraft types. The flights paths are surrounded by so-called expected flight corridors. They are normally no more than 100 m wide, particularly after take-off. The further and higher an aircraft travels away from the airport, the wider they become. Any departure from the ideal flight path does not represent an administrative offence, provided that it takes place within the expected flight corridor that has been laid down.

It is not permissible for pilots to fly aircraft to the airport and just depend on a visual approach.

Only aircraft that have instrument-guided navigation facilities are allowed to fly to our airports. To do so, the aircraft have to line up with the basic approach route 20 km away from the airport. This ensures that planes do not approach the area close to the airport from the side.

Leipzig/Halle Airport has built a jet engine testing facility to offer protection from the noise of engines when they are undergoing tests. Aircraft up to the size of an Antonov AN 124 or an Airbus A 380 can use the building.

The jet engine testing building was rebuilt in 2022 in order to significantly increase the availability of the building, which was commissioned in 2008. This work has improved the air flow conditions in the building so that it can still be used in future, even if the wind conditions are unfavourable.

Noise measurements

The airport is legally obliged to continually measure aircraft noise in its direct vicinity. Section 19a of the Air Traffic Act specifies that the operator of an airport must “set up and operate facilities to continually register measurements of the noise created by aircraft that arrive and depart” at the airport and in the surrounding area. This particularly involves using long-term measurements to monitor the development of the disturbance caused by aircraft noise and examine the effectiveness of the measures adopted to reduce the noise. 

Measurements are recorded continually at all the measuring points and measurement figures are recorded for each second. The noise level recorded in this way over time and individually adjustable noise level recognition parameters, which are set up at the specific sites and subject to the ambient acoustic conditions that prevail at the measuring point (basic noises, outside noises), make it possible to recognise each aircraft noise event. Outside noises, such as vehicle and railway noise or birds, can also be filtered out with the help of the parameters and by checking the audio recordings.

The measurements from the previous day are transferred to the central office once a day and are assigned to aircraft movements there. That is to say, each aircraft noise event is related to the aircraft movement that caused it.

By using the meteorological data, it is also possible to check whether extreme weather conditions (e.g. very high wind speeds) existed during the measurement period. If this was the case, the noise events recorded in these conditions are automatically identified and removed from the statistics.

The characteristic acoustic values, such as the permanent noise level, are only calculated after a final manual check and correlation of each individual aircraft noise event and they are then stored for subsequent assessment, together with all the acoustic and meteorological measurements and characteristic values.

In addition to generally monitoring aircraft noise, this quality-assured data serves as the basis for reporting to the aircraft noise committee and publishing results on the website as well as responding to any complaints about aircraft noise.

The data is monitored by the air traffic department at the Saxon State Ministry for Economic Affairs and Labour as well as by the noise protection committee at Leipzig/Halle Airport.

Locations of the noise measurement points:

Standorte der Lärmmessstellen

  • Measuring point 1: Städtisches Klinikum Dresden; Industriestraße 40, 01129 Dresden-Pieschen
  • Measuring point 2: Gomlitzer Höhe 13; 01108 Dresden-Weixdorf
  • Measuring point 3: Medinger Straße 12, 01458 Ottendorf-Okrilla; OT Hermsdorf
  • Measuring point 4: Grüne Aue 45, 01109 Dresden-Rähnitz

 

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Measuring point 1:Neue Straße 1 in 06184 Kabelsketal / OT Großkugel 
Measuring point 2:Thomas-Müntzer-Straße 55 in 06258 Schkopau / OT Raßnitz
Measuring point 3:Schulstraße 1 a in 06184 Kabelsketal / OT Gröbers
Measuring point 4:Stennewitzer Str. 27 in 06184 Kabelsketal / OT Naundorf
Measuring point 5:Zur Neuen Siedlung (Feuerwehr) in 06258 Schkopau / OT Döllnitz 
Measuring point 6:Milanstraße 4 c in 04435 Schkeuditz / OT Radefeld
Measuring point 7:Dorfstraße 17 in 04435 Schkeuditz  / OT Wolteritz
Measuring point 8:Haupstraße 11 in 04519 Rackwitz 
Measuring point 9:Birkengasse 10 in 04356 Leipzig / OT Hohenheida
MMeasuring point 10:Eschenbreite in 04435 Schkeuditz / OT Modelwitz

Noise measurements and TraVis

The TraVis (Track Visualisation) aircraft noise information tool supplies reliable data from all round Leipzig/Halle Airport.  
The software not only shows the current, but also the archived flight tracks of arriving and departing aircraft, both in the form of a map and as a satellite view.

The special thing about TraVis is that it is even possible to use the tool to determine the noise data for a site that a person individually selects – for example, above their own house. The noise data is displayed once a measurement point has been selected.

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Timetable data, take-off and landing flight paths for the aircraft as well as distance information from a person’s own location are all available as additional items related to all aircraft movements. The current noise level diagrams can also be accessed for the individual noise measurement points. The current data appears with a ten-minute delay for flight safety reasons. Data from the past can be accessed in the archives.

The address that a person is seeking can be entered on the website to provide a precise display for the location – or the house symbol on the header line can be drawn to the place that is required. The measuring points are displayed as coloured dots. The measurement point is displayed as green if the noise level is below the individual start and stop threshold that has been adapted to the ambient noise, but the dot turns yellow if the noise level is higher. As soon as the level is recognised as an aircraft noise event, the measurement point turns red. A grey measurement point indicates that it is not functioning because of a thunderstorm or strong gusts of wind, for example.

To the TraVis aircraft noise information tool

 

The Saxon Noise Protection Officer

The Saxon State Ministry for Economic Affairs, Labour and Transport created the position of a Noise Protection Officer on 1 September 2021. Jörg Puchmüller acts as the central contact person for those living near airports and their citizens’ initiatives, the noise protection committees, the aviation sector, the public authorities, German Air Traffic Control, the airport operators and the regional officer for Leipzig/Halle Airport.

Aircraft noise committee

The committee to protect against aircraft noise and air-borne contamination at Leipzig/Halle Airport

A committee must be formed at commercial airports in line with Section 32b of the Air Traffic Act and it must provide advice to the airport’s licensing authority as well as the Federal Supervisory Office for Air Traffic Control and the responsible air traffic control organisations about measures to protect against aircraft noise and any air contamination that is caused by aircraft.

The aircraft noise committee at Leipzig/Halle Airport is a body that currently has 21 members. The members of the committee are appointed by the licensing authority, the Saxon State Ministry for Economic Affairs, Labour and Transport.
The committee meets regularly in March and November every year – and more frequently, if required. The committee must be informed about all the upcoming measures related to noise protection. It can suggest measures to protect against aircraft noise itself. These suggestions are not mandatory, but are recommendations. If the licensing authority, the Federal Supervisory Office for Air Traffic Control or the air traffic control organisation believes that the suggested measures are unsuitable or impractical, they must inform the committee about their opinion, citing the reasons for this.

You can find more information about the aircraft noise committee on the website of the Saxon State Ministry for Economic Affairs, Labour and Transport.

Aircraft noise portal

The German airlines, airports and German Air Traffic Control have jointly developed an Internet portal in order to improve the information services related to aircraft noise on the Internet.