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(CHF)
| AVGAS | JET A1 | |
| Full price | 2.46 | 2.02 |
| Duty free | 1.71 | 1.28 |
+ TVA 8.0 %
Environmental impact
Noise and acoustic nuisance
Noise generated by aircraft is the first cause of nuisance felt by people living in the vicinity of the airport. In order to master and moreover, reduce noise nuisance, action must be taken at several levels. Noise is a complex problem which involves several actors, each with its own role, responsibilities and levers of specific and complementary actions.
The control of noise nuisance implies intervention at two levels: controlling noise at the source, and controlling the manner of piloting the aircraft and the establishment of air traffic procedures.
Noise at the source : The aircraft
Essentially there are two causes for noise at the source:
- Engine noise
- Aerodynamic noise
The parameters that affect the emission of noise are linked
- to technology (e.g., engine performance)
- to aircraft operations (e.g., engine power, aircraft speed and aircraft mass)
Aircraft are classified into different categories according to their acoustic performance measured under specific conditions. This classification corresponds to the certification of aircraft.
The propagation of noise
Noise propagation is affected by many parameters:
- the distance between the source of noise and the measuring point, which is linked to the aircraft trajectory
- weather conditions (wind, humidity, temperature)
Perceived noise and noise nuisance
Perceived noise nuisance may vary for the same level of measured noise. Indeed, noise is considered to be more of a nuisance during the night than during the day. Moreover, the higher the relative level of a noise event is against background noise, the more acutely it will be perceived by the inhabitants.