Tuesday, May 3, 2022

“The Parisian High-Line” : The Petite-Ceinture

  Elsa Gautier                                     

                                         “The Parisian High-Line” : The Petite-Ceinture


The Petite-Ceinture is an old railway line of 32km, going around Paris and belonging to the SNCF (the public company of the railroads in France, “the French SNCB”).

The first trains ran on it in 1852 and the last ones in 1993. Built during the industrial revolution, the Petite-Ceinture contributed to the economic development of Paris by transporting both goods and passengers. Since the 90's, except for some sections, no more train has been circulating on the Petite-Ceinture, this space had no function and vegetation developed there. This green space located into the Parisian high density, is a strategic land and many promoters wanted to buy it. Since 2007, its owner (the SNCF) and the city hall of Paris have concluded a contract to transform almost the entire Petite-Ceinture into an urban park around Paris. This process, still in progress, is long, expensive and could be complicated depending on the location : in an open air at the ground’s level, under the ground’s level, or even in a tunnel.



For this process to benefit as many neighbourhoods as possible, the SNCF and the city of Paris have chosen to begin by opening several small sections throughout the city, and not just one large section in one neighbourhood. Gradually, former sections of the Petite-Ceinture that were closed to the public are being opened up and transformed into urban parks.

Whether open or closed sections, in both cases nature is present but not in the same way. Moreover, it is also important to be aware of the different social stakes that are hidden behind this very particular green space.

 

The public sections: transformed as urban parks

Today eleven sections are open to the public as a public park. Very few tourists visit the Petite-Ceinture, it is mainly parks for local residents who go there for a walk.

The sections of the Petite-Ceinture which are open to the public have been developed as a place for walking while taking into account certain specificities. A specific landscape treatment has been adopted to preserve the rails, for their historical value, and also to protect the fauna and flora.

In the way these sections have been landscaped everything has been done to have a large variety of naturally present plants and different natural environments: grassland, wooded slopes, shrubs, trees, walls, or rocks. Each of these environments hosts different animal species. According to a census of the fauna and flora conducted in 2016, each section hosts on average: 130 plant species and 110 animal species including about 20 birds.

The maintenance of this fragile ecosystem is also important to protect it. The entire Petite-Ceinture, (open and closed sections) are maintained by social and professional reintegration associations specialized in the ecological management of green spaces.

 

The private sections: reservoirs of biodiversity in the heart of the city

Officially, the only people authorized to visit the closed sections are the associations maintaining these spaces. These associations only do the minimum to maintain a passage and prevent the vegetation from invading everything.

Contrary to the sections open to the public, where nature has been recreated and is supervised by man, in the sections closed to the public nature has not been supervised. A wild and spontaneous vegetation has been developing there for thirty years. If for some people these spaces are seen as “abandoned spaces” or “urban wastelands”, these spaces without human beings and with numerous natural environments, both plant and mineral, represent sanctuaries for the reproduction of certain species of birds, reptiles and small mammals. These sections are real reservoirs of flora and fauna in an urban environment.

This richness is widely highlighted by experts: the linear configuration of the Petite-Ceinture and its proximity to woods, large parks and the Seine, allows the propagation of species. It has become an ecological corridor.


In addition to play a significant role for the urban bioiversity, many ecosystem services are realized thanks to the Petite-Ceinture: air filtering, micro climate regulation, noise reduction, and rainwater drainage.


The social effects of this nature into the city 

It is important to note that the Petite-Ceinture is crossing many neighbourhoods in Paris: the richest (to the west) as well as the poorest (to the north). Thus, the Petite-Ceinture is an opportunity to give access to green spaces to poor districts and very mineral areas of Paris. For example it happens that on some closed sections, neighbourhood associations create a "shared garden" with the support of the city hall.

As in New-York with the High Line, the presence of the Petite-Ceinture leads to green gentrification, the rent next to it increased a lot. Since the lockdown, the rent-gap has been even more accentuated.

Another phenomenon creates gentrification, mainly in the north of Paris, along the Petite-Ceinture: the opening of a bar or restaurant. As the Petite-Ceinture is a green, pleasant and atypical place, when a bar or restaurant opens on the Petite-Ceinture, it attracts many people often richer. This phenomenon contributes to the shift of a population in a district and leads to its gentrification.

Concerning the closed sections, it is also interesting to see how some Parisians informally appropriate this hidden nature in the city. Despite the fact that these spaces are closed to the public, people with various sociological profiles can be found there: homeless people "living" there, many graffiti artists come, people walk there out of curiosity for the first time, and local residents go there very often. Some people living along the Petite-Ceinture have included these hidden areas of nature in their daily life as a garden: the children of the neighbourhood meet there to play, and people garden or organize BBQs.  

             

The Petite-Ceinture is one of the few places where you can find such a rich biodiversity in the middle of Paris. In order to continue to enjoy its many ecosystem services, it is important to be aware of it to preserve it.


Do not hesitate to visit it if one day you are in Paris!


Two maps detailing the public sections and their entrances :

-          https://uploads-ssl.webflow.com/5f6117a6e60fe6618ef80230/60e2b94a3c407cae2eb62bd3_Promeneurs Petite Ceinture - Carte guide %5BWEB%5D.pdf

-          https://petiteceinture.org/acceder-a-la-petite-ceinture/

 

 

Sitography :

-          https://www.paris.fr/pages/la-petite-ceinture-2537

-          https://www.paris.fr/pages/la-petite-ceinture-et-ses-promenades-ecologiques-7855

-          https://petiteceinture.org/

-          https://www.promeneurs-petiteceinture.paris/le-guide

 

 

 

 




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