To reduce the noise of the airplane, the airport carved a mysterious jagged pattern on the ground
In large airports where passenger aircraft and cargo aircraft go and go all the way, noise countermeasures against surrounding environments are very important. In the "Schiphol Airport" hub located in Amsterdam, the Netherlands, efforts were made to reduce noise by adding a jagged pattern to the surrounding land when adding a new runway.
This Crazy Land Art Deflects Noise From Amsterdam's Airport | Innovation | Smithsonian
https://www.smithsonianmag.com/innovation/crazy-land-art-deflects-noise-from-amsterdams-airport-180955398/?no-ist
How Amsterdam's Airport Is Fighting Noise Pollution With Land Art | Amusing Planet
https://www.amusingplanet.com/2017/06/how-amsterdams-airport-is-fighting.html
This effort was carried out by Schiphol Airport as a joint project with "H + N + S Landscape Architects" of the building office and Paul De Kort of the artists etc. This strange shaped structure is made as a measure to mitigate the noise "ground-level noise" emitted from the engine of an airplane flying off the runway.
In the Netherlands where lowlands occupy the majority of the country land, a vast reclaimed land is chosen as the land of the airport construction. However, due to the fact that it is a flat land and its structure that it is lower than the sea level, the entire land acts like a "megaphone", so there is a harmful effect that the noise is amplified. At Schiphol airport, the noise when the airplane took off and landing reached the place where the distance was 28 km, and measures were necessary.
Incorporated there was a method of "carving a mountain-shaped jagged pattern on the land around the airport."
This mountain is a large one with a height of 2 meters or more, and grass and flowers are planted on the surface of the soil.
It is said that the noise coming out of the airplane has been confirmed to have the effect of being diffused by virtue of this jagged shape and making it harder to reach the surroundings.
This shape was invented based on the fact that the "ridge" made in the field around the airport has noise reduction effect. The details are described in the following movie.
Landart Park Buitenschot on Vimeo
Schiphol Airport is close to the city center of Amsterdam. When trying to construct a new runway for the expansion of the airport, we found that the noise to the neighboring residential area becomes a problem.
Meanwhile, the fact that the field near the airport was cultivated and the ridge was made makes the noise smaller. I found that irregularities due to ridges spread the energy of noise.
Based on that phenomenon, a project team such as Schiphol Airport decided to make noise countermeasures by making large irregularities.
Its size is large enough to allow adults to hide their buds. In the valley part, a passage is made so that people can walk side by side, and it is possible to utilize it as a park by planting flowers and the like.
It may be a little noise, but you can also take a walk.
When flowers bloom like this. Even in terms of beautifying the area around the airport, this noise buffer zone will be useful.
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