In addition,
Geneva: challenge vegetation pav:
Urban Renaturation in Geneva (5/5)
Praille Acacias Vernets: the challenge of the vegetation of an industrial sector
How to get the PAV sector of heat island status to that of green model in urban areas? In addition, A major issue. However, Especially since the population will have to project themselves. For example, But a very small corner of the area gives an overview.
Upstream of the junction bridge. For example, on the site of the old Firmenich factory, users can now get lost in a labyrnth of greenery. Therefore, An example of possibilities in the pav.
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- Industrial sector dedicated to transforming into a residential area, the PAV will have to make up and green. Consequently, A challenge in a sector where bitumen is king.
- At the northern tip. For example, upstream of the junction bridge, the vegetation around the old Firmenich factory gives an overview of the possibilities.
- The open -air backing of the area. For example, the Drize will also have its importance to create a corridor of freshness.
What will the districts of PAV Whether the Genevans perceive for the moment through major sites (Vernets. Consequently, Tour Pictet) or synthetic images? For example, Presented as model districts. For example, they must imperatively meet vegetation objectives guaranteeing a quality of life adapted to the climatic conditions of the years to geneva: challenge vegetation pav come. Meanwhile, In this sense. In addition, this immense land of 230 hectares (more than plainpalais and the junction gathered), where everything is to be transformed, is a laboratory of the city of the future.
On paper, there are quantified goals. Similarly, The Geneva climate plan has notably set itself the aim of going from 23% to 30% of wooded coverage. Moreover, (or canopy) in town by 2070. Moreover, Instinctively, one could imagine that the “white sheet” of the PAV is an ideal opportunity to target such rates.
“The problem is that in this essentially industrial sector, we start from far away. However, The PAV. However, currently, is 6% full ground and 4% canopy, “explains the Ocan (Cantonal Office for Agriculture and Nature) Anne-Lise Cantiniaux, Nature and Landscape Project Chef and responsible for these issues on the PAV geneva: challenge vegetation pav sector.
Geneva: challenge vegetation pav
Projection of possibilities
Its service has established a mapped projection of possibilities. For example, both for the open ground, essential for planting trees capable of reaching a large size, and the wooded cover. Consequently, Examples: in the Acacias 1 sector (the triangle delimited by the Acacias road. Moreover, the youth route and the rue François-Dussaud), one can ideally count on 36% full ground for 19% canopy. Consequently, A large park in place of the MPARC? In addition, It would be 71% of the ground for 23% canopy. “It is less than the 30% canopy referred to at the city scale for 2070. but the leap in arborization will be considerable and obviously very visible.”
These projections remain theoretical, but they have the merit of set an objective. “A size unknown is geneva: challenge vegetation pav the quality of the soils,” continues the expert. In this perimeter which essentially welcomes industry, the question of potential underground pollution is decisive. We are precisely doing analyzes. This variable will condition the interventions. the type of vegetation that it will be possible to bring to this or that district. ”
We would like to be able to project ourselves. but for the time being, the PAV, they are mainly cranes, large holes and imposing buildings, as in the Vernets. Frustrating? No doubt. but a very small corner of the sector, at the northern tip, in the perimeter of the old Firmenich factory, gives an overview of the possibilities. “This is a fairly speaking example of what can be done at the foot of the buildings of future districts in terms of vegetated spaces. ” notes Anne-Lise Cantiniaux.
Upstream of the junction bridge, on the site of the old Firmenich factory. In certain places, we can no longer distinguish the city.
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We are here on the left bank of the Arve, just upstream from the junction bridge. The transformation of the area. formerly covered with geneva: challenge vegetation pav bitumen for the needs of a parking lot, surrounded by barbed wire, is striking. At the edge of the river. the space was completely designed to make room for a large rectangle of high herbs and shrubs.
Geneva: challenge vegetation pav
A labyrinth of greenery
Crossements cross this green labyrinth. leading to tables and benches where we can come to lounge in the middle of the plants. Large trees have obviously been preserved, generating a welcome shadow. The vegetation is so generous in places that it is barely if we distinguish the city in the background.
Similar developments are reproduced in the heart of the various buildings. including a tower, which house state services, also generating meeting spaces. Each square meter available seems to have been used to set up plants at the foot of the geneva: challenge vegetation pav buildings.
At the northern tip of the pav., An atmosphere where the industrial past harmonizes with vegetation.
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Several steps
This transformation is the work of Vimade, the Geneva office of landscape architects. “These arrangements are partly temporary, because a PLQ will complete the existing site,” explains its co -founder Tanguy Vitry. But that indeed gives an overview of geneva: challenge vegetation pav what can be done in the PAV. where elements of the industrial heritage and the proximity of water with the arve but also the open -air backing of the area and the drize can serve as conductive wires to design structural and anchored vegetable spaces.
The CPEG, owner of the buildings, has decided to open this space to the public. The approach of landscape architects consisted in completely degrading the bitumen. The proximity of the Arve. with a soil made up of alluvium, and therefore draining, fortunately little polluted, was exploited to implant a typical vegetation of the river, with willows and alders, in particular.
The trees present have been preserved. Certain elements, such as Lespierres of old facades, have been reused for the forecourt.
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As for the industrial past, it has also been inspiring. “We have worked a lot on the re -use of materials,” says Tanguy Vitry. The asphalt of the ex-sparkle was used to make walks in slabs. the stones of the old facades were used for the forecourt around the tower, a large gear of an old elevator turned into a table. On an industrial site. re -use is an geneva: challenge vegetation pav interesting approach both for economic reasons and from a heritage point of view. ”
Act now
Even temporary, this redeveloped space sample gives an idea of the possible landscape approaches in the PAV. A little patience, and there will be lasting achievements to put themselves under the pupil. Like the dense canopy planned in the Star district. Or the Esplanade des Vernets project, led by the city and planned by 2028-2029. “A large park will replace the parking lot. it will be surrounded by a stream, created from the Genilac des GIS network. It is rather ingenious, ”notes Anne-Lise Cantiniaux. So many green spaces welcome near the high density districts.
Patience therefore. but remains the need to quickly green a PAV sector identified as an important heat island, while the creation of this new urban geneva: challenge vegetation pav pole will be spread over decades. “This is the reason why we also identify areas where we can act now,” says Anne-Lise Cantiniaux. The city of Carouge works for example on the Grosselin district to make a temporary vegetation plan with citizen movements. the canton. Otherwise, the pav will always be assimilated to a permanent site; However, the need for nature in town is now. ”
The cord blue-green of the Drize. the area
Rare project on the scale of a city, Geneva brings back from the rivers to the heart of the city, with the open -air backing of the area, which will along the PLQ “Acacias 1” and will cross the future PLQ “Acacias 2”, as well as from the Drize, from Groslin to Carouge to the district of Vernets in the heart of Geneva.
The first will be up to 11 meters wide, the second between 11 and 35 meters, with banks offering spaces devoted to vegetation.
“This cordon Bleu-Vert will be very important to bring freshness. biodiversity and recreational spaces for the population,” said Franck Pidoux, director of the Water and Fishing Service at the Cantonal Water Office. “One of the challenges, and we are now working in collaboration with neighboring France, is to guarantee sufficient water flow. This involves work on deductions in the tablecloths. ”
The other role of these rivers will be to make the new districts resilient to floods, explains the expert. Their crucial function in a sector that has long been devoted to industry. therefore paved, will be to play the regulators in rainwater management.
By the geneva: challenge vegetation pav end of the year already. if all goes well, the public will be able to see the open -air drize on the side of the districts of the star and drink, over a length of 450 meters. The work will then be done as. when the districts are built
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Geneva: challenge vegetation pav
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